TTS-100 Manual  

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TTS-100

TELEPHONE TEST SYSTEM

REFERENCE MANUAL

 

DPL TELECOM TECHNIQUES

REV. 2.2

 

Table of Contents

 

1.0          Introduction

1.1          Description of the TTS-100

1.2          Equipment Supplied with the TTS-100

1.3          Equipment Required to Use the TTS-100

1.4          Technical Specifications

2.0           Installation

2.1           Installing the TTS-100 Hardware

2.2           Installing the TTS-100 Software

2.2.1        Hard Disk Operation

2.2.3        Floppy Disk Operation

3.0           Using the Software.

3.1           Opening Menu

3.2           System Set up

4.0           POTS Mode

4.1           Auto Mode

4.1.1        Pass/Fail Summary

4.2           CLASS Signaling

4.2.1        CLASS Transmission Level

4.2.2        Loop Length for CLASS

4.2.3        Number of Seizure Bytes of 55

4.2.4        Number of Mark Bytes of FF

4.2.5        Number of Stop Bits

4.2.6        Main Message Type Number

4.2.7        Time to Wait After Ringing

4.2.8        Off-Hook ACK DTMF

4.2.9        Multiple or Single Message Type

4.2.10      When to Send CLASS

4.2.11      Ringing Frequency and Level

4.2.12      Message Type and ASCII Data

4.2.13      Quick Edit Keys

4.3            DC Current Test

4.4            Extension In Use

4.5            High Voltage Lamp Test

4.6            Loop Length & Hook Time

4.7            Memory Dialing & Redial

4.8            Ring Test

4.9            Dial Tone Test

4.10          Pulse Dial Test

4.11          Transmit Level Test

4.12          Configuration Files

4.13          Send Wink

4.14          + / - Polarity Selection

4.15          Supervisor Mode.

4.15.1       Add a Phone

4.15.2       Configure a Phone

4.15.3       Copy a Phone

4.15.4       Delete a Phone

4.15.5       Change Password

4.15.6       Daily Statistics.

5.0            EBS Mode

5.1            Auto Mode

5.2            Address/Data Mode

5.2.1         Address/Data Mode - Manual Entry

5.2.2         Address/Data Mode - Auto Execute

5.2.3         Address/Data Mode - Create a File

5.3            Display Test

5.4            DC Current & ACK Timing

5.5            Display Characters

5.6            LCD Indicator Strobe

5.7            Key Test

5.8            Reset System

5.9            Send CO Tones

5.10          Transmit Level Test

5.11          User Mode

5.12          Configuration Files

5.13          Configure Tests

5.13.1      Default Loop Length

5.14         Supervisor Mode

5.14.1      Add a Phone

5.14.1.1   Handset Test

5.14.1.2   Buzzer Test

5.14.2      Configure a Phone

5.14.3      Copy a Phone

5.14.4      Delete a Phone

5.14.5      Daily Statistics

5.14.6      Change Password

5.15         + / - Polarity Selection

6.0            EBS Command Set and Address Configuration

6.1            Address Configuration

6.2            CO to Primary Set Commands

6.3            CO to Display Set Commands

6.4            ASCII Character Set

6.5            CO to 18 Button Add-On Commands

6.6            CO to 20 Button Add-On Commands

6.7            CO to 36 Button Add-On Commands.

6.6            CO to 22 Button Add-On Commands

7.0            Central Office Emulator

8.0            Warranty and Technical Support.

8.1            Warranty

8.2            Technical Support

 

1.0 Introduction

 

The TTS-100 is a unit designed to simulate a Central Office switch. You may test both EBS and POTS

phones, or place calls from one type to the other.

 

This manual contains all of the information necessary to set up your unit and configure all of the tests it

will perform. 

 

1.1 Description of the TTS-100

 

The TTS-100 is a telephone test system for Northern Telecom EBS and POTS telephone sets. It operates

from a PC serial port.  The software will run under MS-DOS or a Windows DOS prompt. The TTS-100 will

simulate short, medium, and long loop lengths and performs the following test functions:

 

EBS Mode:

 

1.      Reset the sets under test and give a visual indication of what sets (addresses) are connected.

2.      Loop Back and Display Status Request tests in Auto Mode.

3.      Send a user defined message to the display.

4.      Strobe (Wink, Flash, Turn On and Off) all the LCD indicators on the sets under test.

5.      Buzz or ring the phone.  Turn on and off, flash, and wink any key using simple commands.                     

6.      Send an EBS command to the set by entering the address location of the set and the hex

command code.

7.      Create automatic test routines, which can be saved and executed multiple times. 

Test routines are specified

as sequences of EBS commands and pauses.

8.      Display all ‘Phone to CO’ signaling codes of the modules under test. Supports addresses 0 - 3.

9.      Reverse the polarity of the tip and ring to test for reversed cords.

10. Measure the level of 8 kHz signaling from the phone or add-on.

11. Measure the acknowledge signal in response to a ‘from CO’ EBS code.

12. Measure the active and idle DC currents drawn from the CO’s talk battery.

13. Provide VU indication of mic transmission level on the PC screen.

14. Send CO call progress tones: busy, dial tone, ring back, and 1 kHz.

15. Connect an external speaker to monitor voice quality.

16. Test add-on modules without a primary set connected.

17. An Auto Mode test series can be defined by a supervisor. The operator is prompted to perform the tests. 

Results are tabulated when the Auto Mode series is complete and Pass/Fail results are clearly stated. 

Many different Auto Mode configurations may be created to allow testing of different sets or add-on modules.


POTS Mode:

 

1.      Send power ringing to a set.  The ringing frequency may be user defined as 20 or 30 Hz and the ringing

level is adjustable in 98 steps.

2.      Test touch tones (DTMF).

3.      Test repertoire memory and redial sequences and digit/interdigit times.

4.      Test pulse dial. The percent break and pulsing speed are displayed. 

5.      Measure the Release and Link key break times. (On-hook time)

6.      Test the Extension In Use (EIU), Feature In Use (FIU), and Hold indicators.

7.      Reverse the polarity of the tip and ring.

8.      Test the neon lamp on Unity type sets.

9.      A-Leads open or closed test (Unity type sets).

10. Send CLASS signaling (Caller Line ID, Caller ID on Call Waiting, Name and Visual Message Waiting)

with or without ringing.

11. Test for handset noise.

12. Voltage probe test to indicate a tip or ring short to the phone’s base.

13. Measure the DC current drawn from the tip and ring on and off-hook.

14. Provide a visual indication of the mic transmission level on the PC screen.

15. Send CO call progress tones: busy, dial tone, ring back, and 1 kHz.

16. Monitor voice quality by connecting an external speaker.

17. Define Auto Mode tests that prompt the user to perform the tests.  Results are tabulated when the

Auto Mode sequence is complete and Pass/Fail results are clearly stated.  Many different auto mode

configurations can be created to allow testing of different sets.

  

1.2 Equipment Supplied with the TTS-100

 

The following items are supplied with the TTS-100 at the time of purchase:

 

·        User’s Manual

·        Reference Manual

·        9 pin to 9 pin (m-f) straight through serial cable

·        9 pin male to 25 pin female adapter

·        TTS-100 unit

·        Voltage Probe

·        3½" HD software diskette (1.4 Mb)

 

1.3 Equipment Required to Use the TTS-100

 

The following items are required for the TTS-100 to operate:

 

·        MS-DOS compatible computer with serial port COM1 or COM2 available and 640K RAM.

·        MS-DOS version 3.0 or higher

·        Hard disk if program speed is important

·        External speaker if required (8-32 W)

 

1.4 Technical Specifications

 

CAUTION: . Use your scope’s differential mode when measuring tip and ring signals. Do not connect

the tip of the phone line to ground.  It will cause internal damage to the TTS unit.

 

Power: 115 Vac ± 10%, 60 Hz, 60 W, MOV Surge Protected at 130 Vac.

External fuse:  0.5 A slow blow, 5 X 20 mm, 125 Vac.

Weight:  4.6 kg (10.12 lbs).

Size:  24.4 cm x 23.6 cm x 10.4 cm  (9.6" L x 9.3" W x 4.1" H)

Case:  18 gauge steel painted two tone ivory.  The case is vented for heat dissipation.

Phone Connection:  Five RJ-12, 6 pin modular connectors.

·        Three parallel EBS jacks.

·        Two parallel POTS jacks.

Computer Connection: DB-9, RS-232C female connector.

Computer to TTS-100 protocol: RS-232C serial, 9600 baud, no parity, 8 data bits, 1 stop bit, software

handshaking.

Voltage Probe and External Speaker connector: 3 position terminal strip.

 

Electrical Specifications:

 

Voltage probe input impedance:  470 kW

Voltage probe threshold: 1.1 Vdc wrt tip side of talk battery

Open circuit DC talk battery voltage:  52 ± 0.2 Vdc

POTS Short Loop Length:  400 W Battery Feed (Range:  390 - 480 W, 480 if unit is warm)

POTS Medium Loop Length:  400 W Battery Feed + 620 W Line

POTS Long Loop Length:  400 W Battery Feed + 1240 W Line

POTS Very Long Loop Length:  400 W Battery Feed + 1500 W Line

EBS Short Loop Length:  440 W Battery Feed (Range: 430 - 520 W, 520 if unit is warm.)

EBS Medium Loop Length:  440 W Battery Feed + 620 W Line

EBS Long Loop Length:  440 W Battery Feed + 1230 W Line

Battery feed for EBS line with POTS line also engaged (in CO Emulator mode):

            440 W Battery Feed + 920 W Line

EBS jack third pair supply: 16 Vac at 140 mA,  short circuit protected

Neon lamp test voltages:

            High setting:  120 ± 0.5 Vdc no load

            Low setting:  100  ± 1.5 Vdc no load

Neon lamp test voltage source resistance:  180 W (In Very Long loop mode add 1500 W to source resistance.)

Maximum continuous current available before trip: 8.5 ± 1.5 mA.

 

POTS line AC impedance:  600 W ± 10%, 350 Hz - 4000 Hz

EBS line AC impedance:  900 W ± 10%, 500 Hz - 8000 Hz (790W @ 350 Hz).

 

Note:  All AC levels are measured with a 900 W + 2.2 mF termination for the EBS line,  and a

600 W + 2.2 mF termination for the POTS line.

 

EBS Short loop 8 kHz signal level:  1.30 Vp-p (with AC transmit level set to 100%)

EBS Medium loop 8 kHz signal level:  416 mVp-p (with AC transmit level set to 32%)

EBS Long loop 8 kHz signal level:  65 mVp-p (with AC transmit level set to 05%)

EBS CO Emulator signal level:  220 mVp-p

8 kHz receive level:  40 mVp-p to 1.5 Vp-p

8 kHz receive frequency limits:  7.1 to 9.0 kHz

Measure EBS level range, accuracy:  0.2 to 2.0 Vp-p, ±0.1 Vp-p

Measure EBS Ack stop time:  16.25 to 19.75 ms, in 0.25 ms steps.

 

Voice band loop attenuation:  0 dB-Short, 10 dB-Medium, 20 dB-Long, user definable.

POTS to EBS voice path gain, CO simulation:  -6 dB

EBS to POTS voice path gain, CO simulation:  -5 dB

 

Call progress tone levels at 100%:  dBm = POTS, mVp-p = EBS test phone mode) 

Dial tone:  -7.8 dBm, 380 mVp-p per tone

Ring back:  -12 dBm, 246 mVp-p per tone

Busy tone:  -16 dBm, 138 mVp-p per tone

EBS Alert:  N/A, 860 mVp-p each tone

1 kHz tone:  -1 dBm, 830 mVp-p

 

Call progress tone frequencies and tolerances:

Dial tone:  350 Hz + 440 Hz, ± 0.05%

Ring back:  440 Hz + 480 Hz, ± 0.05%

Busy tone:  480 Hz + 620 Hz, ± 0.05%

EBS Alert:  500 Hz and 670 Hz warbled at a 10 Hz rate, ± 0.05%


CLASS Specification:

Transmission scheme:  Analog, phase coherent FSK

Logical 1 (Mark):  1200 ± 2 Hz

Logical 0 (Space):  2200 ± 4 Hz

Transmission rate:  1200 bps

Application of data:  serial, binary, asynchronous

Transmission Level:  550 mVp-p at 100% setting, into 900W,

            User definable in 1% steps.

Maximum twist (wrt mark):  0 dB to +1.5 dB (0.8 dB typ.)

            Maximum number of bits sent:  2040 bits (1.7 seconds)

            SAS Signal: 440 Hz, 300 ms duration, 560 mVp-p.

            CAS signal: 2130 Hz + 2750 Hz, 82 ms duration, 490 mVp-p per tone.

 

DTMF transmit level (EBS line, CO Emulation):  275 mVp-p/tone

DTMF receiver specification (POTS line, short loop):

Valid input AC signal level:  +1 to -29 dBm per tone

Twist acceptance:  ±10 dB

Frequency deviation acceptance:  ± 1.5%  ± 2 Hz

Frequency deviation rejection:  ± 3.5%

Minimum tone duration/loss:  35 ms/30 ms

(The TTS-100 will report fourth column tone pairs.)

 

Power ringing frequency:  20 Hz or 30 Hz sine wave, user selectable.

Power ringing level:  100 Vac, ±5%, no load, software adjustable ringing level.

Power ringing output impedance:  2.6 kW typical, short loop, includes 400W battery feed resistance,

(add 1500 W loop resistance for very long loop.)

Ring trip current: 7 ± 3 mAdc, 44 ±8 mAac.

On-hook trip current and pulse dial threshold:  11 ± 3 mA.

Key timing (link and release) length and resolution:  1 to 8191 ms ± 1.5 ms max.

 

POTS DC current measurement:  0-15 mA ± 0.5 mA, 15-130 mA ± 2 mA.

EBS DC current:  0-15 mA ± 1 mA, 15-130 mA ± 2 mA

 

2.0  Installation

 

This section describes the hardware and software installation procedures for the TTS-100. 

It covers both hard and floppy disk types. This software is not copy protected and may be installed

on as many computers as required.

 

Version 2.2 requires that the internal EBS controller version be “32”. Contact DPL if a message appears

on entry to the EBS Mode or POTS Mode option stating that some features are not available.

All features which were available in version 1.8 are still available in 2.2 without the “32” controller.

 

2.1  Installing the TTS-100 Hardware

 

A 9 pin serial cable and a 9 to 25 pin adapter are shipped with each unit. Use the cable, and the

adapter if necessary, to connect the TTS to your PC's serial port jack COM1 or COM2.

 

There is one EBS line and one POTS line in the TTS unit. Three EBS jacks are wired in parallel on the

front of the unit.  Two POTS jacks are also wired in parallel on the front of the unit.  Connect the test phone to

any one of the appropriate jacks.

 

When connecting a phone unit ensure you use the correct cords. The EBS set requires six wire cords,

pair 1 (inside pair) for signaling and voice, and pair 3 for powering the set’s display, speaker phone, and add-on

modules. POTS phones use two or four wire cords, the first pair for signaling and the second pair for A-leads.

 

2.2  Installing the TTS-100 Software

 

            The TTS software and hardware have been proven to work on the following computers:

 

·        386 & 486 Clones, 40 MHz/33 MHz, EGA and VGA

·        Hewlett Packard XT, 8 MHz, MDA and Hercules

·        Gateway, 486 33 MHz, SVGA

 

            Difficulties may be experienced when using:

 

·        Wang computers running IBM emulation mode

·        IBM PS/2 with built-in PS/2 mouse port.

 

            The highlighting attribute of some of the indicators may not function on some versions of monochrome,

color emulating LCD screens.


2.2.1  Hard Disk Operation

 

            Once at the DOS prompt, you may install the TTS software onto your hard disk. Listed below are step

by step instructions for installing the TTS software. After typing any line shown below, press the ENTER key.

 

                                    Insert the TTS software diskette into a disk drive.

 

The TTS software is provided on a 3½" HD diskette (1.4 Mb).  The diskette contains all programs and related files

to run the TTS software.

 

                                    Type:   <drive>:

 

Where <drive> is the letter corresponding to the drive in which you inserted the TTS diskette.

 

            Type the following line taking note of the spaces. Refer to the README file on the diskette if you

are upgrading from version 1.8.

 

Type:   NEWINST  C:  \TTS100

                                                                                   

            The default company name at the top of every screen is ‘DPL Telecom Techniques’.  Change the

<logo.txt> file if you wish to change it.

 

2.2.3  Floppy Disk Operation

 

            To run the software from the floppy disk, first create a working copy of the original diskette. 

Then insert the working copy into the disk drive and type the following commands:

                                    <drive>:

                                    TTS100

 

            Where <drive> is the letter corresponding to the drive in which you inserted the TTS software diskette.

 

            The TTS-100 unit may issue error messages to the TTS-100 PC software.  Press escape to erase an

error message. If an error message occurs, it is recommended that you return to the Opening Menu and begin

again. Warning messages are just intended to notify the user of a less important message. 
 

3.0  Using the Software

           

            When executing the software for the first time, a message will appear asking you to select which

COM port you wish to have communicate with the TTS-100. COM ports 1 and 2 are supported in the TTS software. 

 

            After selecting the correct COM port, the TTS-100 menu will be displayed and you may select an option.

  

3.1 Opening Menu

 

            This menu allows you to select the appropriate line for the type of phone you will be testing. 

You may also setup communications with the unit or shell to DOS.  The opening menu will appear as follows:

 

 

            To choose a selection enter the digit/letter that corresponds to the desired selection, or use the

cursor direction keys to move the highlight bar to the desired selection and press ENTER.

 

            The EBS Menu and POTS Menu options allow you to perform a variety of tests on a phone.  See

sections 4 and 5 for details on the available tests.   The TTS will reset every time you select options 1 and

2 from this menu.

 

            Version 2.2 software has two additional items added to this menu. They allow a supervisor to edit

and create phone configuration files without having a TTS-100 unit connected to the serial port. The same

password is required for these options as is required for the “Z” option from within the EBS and POTS Modes.

 

            You may connect an external speaker to the TTS.  F5 allows you to adjust the volume of the

speaker from 0-9.

 

3.2 System Set up

 

            This option allows you to set up communication with your TTS unit.  You may reconfigure which

COM Port you wish to have communicate with the TTS by selecting either COM1 or COM2.

 

 

            You may also enable the audible fail alarm in this screen. Enabling the alarm will cause the

computer to beep every time a test fails. This may be particularly useful with tests run in the Auto Mode. 

Use the F4 function key to toggle between ‘Enabled’ and ‘Disabled’.

 

4.0 POTS Model

 

            The POTS Interactive Menu allows you to test various features of the phone. Once a test is complete,

the software will return to this menu. You may select an option by pressing the letter corresponding to your

desired selection. 

           

 

            Upon start up of the TTS software the test parameters will default to the <defaults.pfg> file. 

You may edit the parameters from within each test option, and perform the tests using the specified limits. 

However, these are local configurations only and will not become permanent until the Configuration Files

option is selected and they are saved to a file. If you exit the Interactive Menu without saving the test

parameters, all configurations will be lost.

 

4.1  Auto Mode

 

            The Auto Mode allows you to run a series of tests that must be previously set up in the Supervisor

Mode. The tests will be executed in succession and a report summary of the Pass/Fail status will be displayed

once all tests have been completed.  For descriptions of the various tests available in the Auto Mode refer to

section 4.15.1.

 

During the execution of the various Auto Mode tests the following keys are used:

 

SPACE          Causes the next test to be started.  It the previous test was complete it will report the test

as ‘Passed’.  If the previous test was incomplete it will be labeled as ‘failed’.

 

X                     Advances to the next test and labels the current test as ‘failed’.

 

R                     Will repeat the current test.

 

Backspace    Will back up to the previous test.

 

F1                   Offers help on the current test.

 

F5                   F5 allows you to change the external speaker’s volume level.

 

ESC                Returns you to the Interactive Menu.


4.1.1  Pass/Fail Summary

 

            A summary of each test along with their respective Pass/Fail status will be displayed once the last test

in the Auto Mode sequence has been completed.  The three status types for each test are: Pass, Fail and

N/A (Not Applicable).

 

  

4.2  CLASS Signaling

 

            CLASS is an acronym for Customized Local Access Signaling Service, and represents Calling

Line ID (CLID), Caller ID on Call Waiting (CIDCW), Visual Message Waiting and Name Display. 

It also contains all of the framing and formatting information sent from the CO.

 

            CLASS can be sent to the phone in the on-hook or off-hook state. It is sent as modem-like FSK

analog signaling. 

 

            The on-hook signaling data consists of first sending 250 ms of the 55 hex byte with no start or stop bits. 

This creates a bit pattern carrier of a 600 Hz square wave. The second part of data consists of sending 150 ms

of ‘mark’ or idle state. The idle state is sent as 22 bytes of FF hex with no start or stop bits.  The remaining

information is that which the receiving device interprets as Calling Line ID, Date and Time, Call Qualifiers, Names,

Message Waiting  Indicators, etc.

 

            Off-hook CLASS is not sent with seizure bytes or mark bytes.  It consists of first sending 300 ms of

SAS signaling and then sending an 82 ms burst of CAS signaling. The TTS then waits for a DTMF ack from the

phone. Once the correct DTMF ack has been received, the TTS transmits the CLASS data to the phone.


            The CLASS data is framed by one start bit (space) and one or two stop bits (mark). The data is sent

in the ASCII format. A Type Identifier byte and a Packet Length byte precede the data. 

 

            The Multiple Data Message Format is used to service POTS lines that support more than one feature. 

It is sent as a sequence of messages each containing a message header and message body.  The message

header defines the message type and length.  The message body contains the main message for the packet. 

A modulo 8 checksum is appended to the end of the data. The TTS-100 is limited to sending 2040 bits of CLASS

signaling (1.7 seconds).

 

            This option is used to test CLASS capable phones, external units, and Visual Message waiting

indicators by sending a user defined message to the POTS phone. It provides a method of formatting the

CLASS information being sent to the phone. The CLASS signaling level can also be altered from within this

option. The following parameters must be defined when sending CLASS:

 

1.      CLASS Transmission Level

2.      Loop Length for CLASS

3.      Number of Seizure Bytes of 55

4.      Number of Mark Bytes of FF

5.      Number of Stop Bits

6.      Main Message Type Number

7.      Off-hook Ack DTMF

8.      Time to Wait After Ringing

9.      Multiple or Single Message Type

10.   When to send CLASS

11.   Ringing Frequency and Level

12.   Message Type and ASCII Data

 

4.2.1  CLASS Transmission Level

 

            The level at which you want to transmit CLASS is entered in this field. It is to be specified as a

percentage of the maximum level of 550 mVp-p into 900 W (-14 dBm). The default percentages are 100%

for short loop, 25% for medium loop, and 12% for long loop.

  

4.2.2  Loop Length for CLASS

 

            The F7 function key toggles the DC loop length used in the CLASS screen. The CLASS loop length

is not affected by the POTS Interactive Menu 1,2,3 or 4 keys.

 

4.2.3  Number of Seizure Bytes of 55

 

            These fields allow you to specify which hex byte to send as the seizure byte, and the number of

seizure bytes to send. The seizure byte should be either 55 or AA, which has an alternating binary 1 and 0

pattern. The default is 36 bytes of 55. This field should be 00 when sending off-hook CLASS.

 

4.2.4  Number of Mark Bytes of FF

 

            This field allows you to change the idle space sent after the seizure bytes. The default is 22 (decimal)

bytes of FF hex (22 is the Bellcore specification for POTS phones). You may enter any number from 00 - 99

for some user specific applications. If 00 is entered, idle time will not be present. 10 should be used for

off-hook CLASS.

 

4.2.5  Number of Stop Bits

 

            This field allows you to increase or decrease the number of stop bits sent after each byte of ASCII data. 

The Bellcore CLASS specification defines that not more than 10 bits of idle time should be present before the

next start bit. You can change this field from 00 to 99 decimal. The default is 02.

  

4.2.6  Main Message Type Number

 

            This field allows you to define the main message type for Multiple Message format data. 

The default is 80 hex. The message type will be used for ‘F4 - Multiple Message’ and ignored for ‘F4 - Single Message’.

 

4.2.7  Time to Wait After Ringing

 

            This field specifies the time to wait between the end of the power ringing burst and the start of CLASS

signaling. The value is specified in milliseconds divided by 100. The range is 1 to 15 decimal and represents 100 to 1500 milliseconds respectively. This field is ignored for ‘F5 - Send CLASS by Itself’ and 'F5 - Send off-hook CLASS'.

 

4.2.8  Off-Hook Ack DTMF

 

            When CLASS is sent to an off-hook phone, the CO transmits an alert signal (CAS) to the phone. 

If the signal has been received correctly, the phone will  send an acknowledge signal to back to the CO. 

The Ack signal is a DTMF digit that must be specified in this field.  For example, the Vista 350 returns a

DTMF ‘D’, and the Vista 250 returns a DTMF ‘A’. Valid characters are:  0, 1, 2, 3, 4, 5, 6, 7, 8, 9,*, #, A,

B, C, and D.

  

4.2.9  Multiple or Single Message Type

 

            The F4 function key toggles between the Multiple and Single Message formats of compiling CLASS data. 

The multiple message format allows several messages to be specified separately, then packetized together

under a multiple message type specifier.  The single format only uses one message type specifier. 

All pertinent data for the Single Message format must be specified on the first line of the ‘Message

Type /  ASCII Data’ edit block. The last five lines are ignored in Single Message mode. 

 

4.2.10  When to Send CLASS

 

            The F5 function key toggles among four options that allow you to specify when the CLASS is to be sent. 

They are:

·        Send CLASS after 2 seconds of ringing

·        Send CLASS after 3 bursts of ringing

·        Send Off-hook CLASS (Caller ID on Call Waiting, CIDCW)

·        Send Off-hook CLASS and wait longer (Caller ID on Call Waiting, CIDCW)

·        Send CLASS by itself (no ringing - for testing message waiting indicators)

 

            If 'Send Off-hook CLASS (CIDCW)'  is selected, the phone must be off-hook for more than two seconds

before sending the CLASS.  When the software is running you will be prompted to go off-hook and it will wait two

seconds before sending the CIDCW. The longer wait option waits for 2 more seconds before and 2 seconds

after the the CLASS is sent. This is for testing phones and adjunct sets which need the delay (Nortel Prevue unit).

 

4.2.11  Ringing Frequency and Level

 

            These two fields specify the ringing frequency and ringing level to be used during CLASS testing. 

The ringing frequency can be defined as either 20 or 30 Hz.  The ringing level is specified as a percentage

and defaults to 100% (100% equates to a level of 100 Vrms for 20 Hz.).

 

4.2.12  Message Type and ASCII Data

 

            For a single message, the Message type is a hex byte that identifies the ‘ASCII Data’ to follow, such

as Caller ID, name, Message Waiting indicator status, etc. A list of  single message types and their respective

meaning and format is given next.

 

Single Message Type          Description

 

            04                                Calling Number Delivery

                                                (format: date time number)

                                                e.g. MMDDhhmm5066351055

            06                                Message Waiting Indicator

                                                e.g. ooo = Turn Indicator Off, BBB = On

            07                                Message Desk Indicator

 

            The Multiple Message format allows the phone to simultaneously support more than one feature.

For multiple messages, the Message Type is part of the header, and identifies which feature will be used

by the message which follows.  The Parameter Type is sent to identify each subsection of the multiple message. 

For example, the Multiple Message Type may identify that a call is coming to the phone. The message

parameters will identify the calling number, the calling name, and the date and time. 

 

Multiple Message Type        Description

                    

            80                                Call Setup (most common)

            81                                Test for Calling Number

            82                                Message Waiting

 

Parameter Type                    Description

 

            01                                Date and Time (8 numerals)

                                                e.g. MMDDhhmm (date time)

            02                                Calling Line ID (not dialable)

                                                e.g. 5066351055

            03                                Dialable Number

                                                e.g. 5066351055

            04                                Reason for Absence of Dialable Number

                                                e.g. P = Private Caller, and O = Unknown

            05                                Reason for Redirection

            06                                Call Qualifier

                                                e.g. L = Long Distance

            07                                Name

                                                e.g. DIGITAL PRODUCT (Maximum of 15 characters)

            0B                                (use with Mult Msg Type 82)  VMWI on or off.

                                                \00 = off, \FF = on. (Use \ to specify literal hex characters.)


4.2.13  Quick Edit Keys

 

(F2) Save Data and Exit

This function key is used to exit the screen and save any changes temporarily. The data is saved to disk

if the Configuration Files-Write Defaults option is executed. If the data compiles to more than 2040 bits, a

warning will be displayed, and you should change the configuration so the data will not be truncated. 

The ESC key will exit the screen without saving any changes.

 

(F3) View Compiled Data

This function key will compile the data portion of the CLASS message and display it on the screen. 

If the first two bytes of a multiple message are 801D, then the multiple message type is 80, and there are

1D hex bytes of data.  The checksum byte is the last byte shown.

 

(F9) Send CLASS

This function key is used to compile the CLASS data and send it to the phone as it appears on the CLASS

Signaling screen.

  

4.3  DC Current Test

 

            This option measures the DC current of the phone in both its off- and on-hook states. In the off-hook

state, it is measured for all four loop lengths. In the on-hook state the loop length is specified by pressing

F2 - Edit Defaults. F4 will toggle the loop length. You may also specify the minimum and maximum currents

for each loop length in the Edit Defaults screen.

 

            You must press the SPACEBAR to begin measuring the currents. ESC returns you to the previous

menu. ‘C’ clears the measured values. The results are displayed on the screen in tabular form with pass

and fail annotations.

 

4.4  Extension In Use

 

            Pressing ‘E’ from the Interactive Menu will toggle the extension set load inside the unit. If the

Extension in Use (EIU) is active, the line is in its off-hook state and the text  'Extension in Use: Enabled’

is displayed. When the EIU is on, the EIU LED on the set should light regardless of its hook state.

 

            The Auto Mode, or other modes that require hook status to change, should not be entered before

disabling the EIU. Some phones that have EIU circuitry will respond to a sudden increase in loop length

(short to long when taken off-hook) and will show that an EIU was detected.

  

4.5  High Voltage Lamp Test

           

            Tests high voltage message waiting indicator lamps such as those found on Unity sets. 

This test may be performed in short or very long loop lengths. If any other loop length is active upon entering t

his test, the software will default to short loop. 

Select one of:

 

1.      100 Vdc

2.      120 Vdc

3.      100 Vdc, Reverse Polarity

4.      120 Vdc, Reverse Polarity

5.      Disable High Voltage

6.      Toggle Loop

 

            High voltage will be applied to the jacks when you select one of options 1-4, and the message

“CAUTION HIGH VOLTAGE AT JACK" appears on the screen highlighted in red. The lamp should be off when

100 Vdc is applied and be on when 120 Vdc is applied. The ‘HV’ LED will be on while either voltage is present

on the POTS jack.

 

4.6  Loop Length & Hook Time

 

            This is a configuration screen only which allows you to change the attenuation corresponding to each

loop length. The defaults are as follows:

 

            Short loop:              100 % (no attenuation),

            Medium loop:            32 % (10 dB attenuation),

            Long loop:                 10 % (20 dB attenuation).

            Very Long loop:        10 % (20 dB attenuation).

 

            The AC percentage is the voltage ratio corresponding to the level of attenuation for each loop length. 

Both receive and transmit values are specified, with transmit being defined as the direction from the TTS unit

to the phone. The voltage ratio may be converted to attenuation using the formula:  

 

Attenuation = 20 Log ( percentage / 100 ) = 20 Log (10 / 100) = 20 dB.

           

            The minimum and maximum link and release times are also specified in this screen.  Enter values

between 0 and 999 for link and 1000 to 8100 for release.

 

4.7  Memory Dialing & Redial

 

            This option measures DTMF on times and interdigit times. It also indicates pauses and calculates

the number of digits per second received.

 

             The screen will display the DTMF digits as well as their timing information. Pauses are long delay

times between two successive DTMF digits and are displayed as ‘PSE’ in the off time field. You may specify

pauses in the dialing sequence by editing the defaults. 

 

 

 

Note:  Some sets do not redial well on the very long loop setting.

 

            On-hook states, or when DTMF character state does not change within 1.5 seconds, signifies a break

in the digit sequence. The break in sequence causes the average Tones Per Second (TPS) parameters to be

updated on the screen. You must use ‘C’ to clear the results before restarting the test.

 

            Pass/Fail criteria can be specified by pressing F2.  You will be provided with the following options:

 

1.      DTMF On Time Minimum (0 - 508 ms)             :52

2.      DTMF On Time Maximum (2 - 510 ms)                        :180

3.      DTMF Off Time Minimum (0 - 506 ms)             :52

4.      DTMF Off Time Maximum (2 - 508 ms)                        :180

5.      Tones Per Second (TPS) Minimum (0-17)                  :3.0

6.      Tones Per Second (TPS) Maximum (1-18)                 :9.0

7.      Pause Time Minimum (4 - 508 ms)                              :400

8.      Pause Time Maximum (1000 – 9999 ms)                   :1500

 

4.8  Ring Test

 

            This test allows you to define a ringing sequence for the set.  The screen will appear as follows:

 

 

            F2 allows you to save the configurations as the defaults for the Ring Phone test. Defaults are

ringing level 100%, and ringing frequency 20 Hz. 

 

            A warning message will be displayed if one of the A-Leads is shorted to the ring.

 

4.9  Dial Tone Test

 

            This option allows you to enable CO tones on the POTS line. The options are as follows:

 

1.      Dial Tone

2.      Stutter to Dial Tone

3.      Ring Back Tone

4.      Busy Tone

5.      1 kHz Tone

6.      Short Loop

7.      Medium Loop

8.      Long Loop

9.      V Long Loop (Very Long)

 

            While the test is running, the CO tone and loop length will be displayed on the screen. There are no

configurable parameters for this test. Remember that F5 allows you to change the external speaker volume.

 

4.10  Pulse Dial Test

 

            When this test is selected you are prompted to dial a digit. Once you have entered the digit, the

percent break and pulsing speed are calculated and displayed. If a ‘1’ is dialed, only the digit dialed is displayed

as only one break occurred and the percent break ratio is undefined.

 

            F2 is used to configure the Pass/Fail criteria.  The following are the defaults for the time pulse dial option:

 

  

4.11  Transmit Level Test

 

            This option will display the audio level transmitted by the phone in a VU meter style horizontal bar

graph. The bar graph is annotated in dBm units with 0 dBm corresponding to a voltage of 0.775 Vrms across

a 600W termination.

 

4.12  Configuration Files

 

            This option allows you to configure the settings for the POTS Interactive Mode test programs. 

Once selected, a menu with the following options will be displayed:

 

1.      Write the current configuration to a file

2.      Retrieve a configuration file

 

            Option 1 will prompt you to select a filename in which to save the configurations currently set up in the

test options. A file name may contain up to eight characters.  Do not include a period or extension. The software

will automatically add the extension .pcg to all files. The file used upon execution of the software is called

<defaults.pcg>.  The software will search for this file every time it is executed from DOS. You may overwrite the

defaults file if you wish to have the software boot up with your own other parameters. To execute a different

configuration file you must select option 2.

 

            Retrieve a configuration file will prompt you to select a filename from the pick list. The configuration

file is read and the test parameters are set according to the retrieved information. You will then be returned to the

Interactive Menu and the parameters defined by this file will become the operating parameters for all tests

conducted from the Interactive Menu.

 

Note:  Any changes made in the interactive defaults and ‘saved’ using F2 are made permanent only if they are

written to a file using this option.

 

4.13  Send Wink

 

            A wink will temporarily remove the battery feed from the phone by disconnecting  and then reconnecting the line. 

This test may be useful in testing sets that sense the CO wink and go on-hook in response to it. 

You can set the length of the wink by pressing numbers 0 through 9 for winks of 330 ms through 825 ms.

 

4.14  + / - Polarity Selection

 

            This option allows you to reverse the polarity of the center two conductors to the phone. The ‘+’ and ‘-’ keys

allow you to select normal and reversed polarity modes. (During polarity reversals the voltage is removed for

0.25 seconds.)

 

4.15  Supervisor Mode

 

The Supervisor Mode is used to set up a series of test routines relevant to a particular phone type.

These are the test routines used in the Auto Mode. You can define which tests to perform and the

testing parameters. 

 

When this option is selected, a screen appears prompting you for a password. If you enter an incorrect

password you will be returned to the Interactive Menu. Once the correct password is entered, the

Supervisor Menu will appear.  You may also change the password from this option.   

 

The default password is TTS100. If the file <password.dat> is missing or corrupt the Supervisor Mode

can not be entered.  <password.dat> is an encrypted file and you will have to re-copy it from the

TTS100 disk.

 

4.15.1 Add a Phone

 

            This option allows you to write separate configuration files for different types of phones. These files

will be used when testing phones in the Auto Mode. When this option is selected you will be asked a filename

in which to save the test parameters of the phone. A maximum of 8 characters is allowed.  Do not enter the

extension, the TTS software will add the extension .pts  for you.  Next, you will be asked for a description of

the phone. This is the name of the phone as you would like it to appear on the screen (500, UnityII, Harmony,

Vista 250).

 

             After you have entered the name of the phone you must select which tests are applicable for that

phone type. A list of available tests will be displayed, each one having a corresponding number. The numbers

define the order in which the tests will be performed.  You may alter these numbers as you please. If you do

not wish to do a particular test enter a 0 . You may scroll up and down the screen with the cursor direction keys. 

Press the F2 key to save the information and exit the screen.  If you do not wish to save the information press ESC.


 

            Each test is described in detail in the following sections. Tests may be enabled in this option, h

owever, the parameters for these tests must be edited in the Configure a Phone option from the Supervisor

Mode menu. If the configurations are not changed in the Configure a Phone option, the test parameters will be

set to the manufacturer defaults.

 

 

4.15.1.1 Voltage Probe Test

 

            This test is used to determine if the tip or ring of the set’s cord is shorted to the metal base of the

telephone. When this test is executed you will be prompted to touch the base of the set with the voltage probe.

If voltage is detected the message ‘Probe Voltage Detected!’ will be displayed on the screen. The message

will be erased when the probe is removed.  Press the SPACEBAR or X to continue.

 

            There are no configurable parameters for this test. The DC loop length is long and the set should

be off-hook during this test.

 

4.15.1.2  Hook Switch Tests

 

            This test allows you to test the hook-switch of the set for switch bounce, It will prompt you to

‘Please depress and hold the hook switch.’  When the hook switch is pressed, the TTS-100 will watch f

or switch bounce. If present, it will be reported and the test will be labeled as ‘Failed’. If switch bounce is not

detected it will be labeled as ‘Passed’. 

 

            Next, you will be prompted to ‘Please release the hook switch’. If switch bounce is reported when

the hook switch released, the test will be labeled as ‘Failed’. If switch bounce is not reported the test will

be labeled as ‘Passed’.

 

            Switch bounce shorter than 10 ms will not be reported.

 

            This option also allows you to test the ‘A-Leads’ of PBX compatible sets. It ensures that the A-Leads

open and close as the hook-switch is pressed and released. The A-Leads are present on the second pair

of wires in the RJ-11 plug and should be closed (shorted) when the phone is off-hook and open when the

phone is on-hook. Sets requiring the A-Leads test must have a 4 wire line cord or the A-Leads will always

measure open. (500 and similar Northern Telecom sets always short the A-Leads.)

 

            The A-Leads test must be enabled in the Configure a Phone option. 

 

4.15.1.3  Link Key Test

 

            This test allows you to test the Link key for valid on-hook time. The software prompts you to press

the Link key of the set.  The TTS will measure and record the on-hook time of the key. If it is within the allowable

range, the next test is automatically started. If the Link key time fails you will be provided with a visual indication

of the time measured, and the ‘failed’ status.

 

            The maximum and minimum Link key times may range from 0 - 998 ms.

 

Link Timing Minimum (0 - 998 ms.):                                400 ms

Link Timing Maximum (0 - 998 ms.):                               675 ms

 

4.15.1.4  Release Key Test

 

            This test is used to test the timing of the set’s Release key. If the release time passes, the next test

is automatically started. If it fails, the timing information will be displayed along with the failure status.

 

            The following parameters may be defined in the Configure a Phone option:

 

Release Timing Minimum (1000 - 8100 ms):                 1760

Release Timing Maximum (1000 - 8100 ms):                2750

            

4.15.1.5  DC Current Test

 

            This test is used to measure the DC current drawn by the set on various loop lengths. The set should

be off-hook upon entry to this test.  The DC currents for all 4 loop lengths are measured and displayed. Their

Pass/Fail status and min/max permissible off-hook currents are also displayed.

 

            You will then be prompted to place the set on-hook. The short loop DC current is measured and displayed

with its status (Pass/Fail) and its configured maximum limit. The polarity is reversed and the on-hook current

is measured again.  Before exiting the test normal polarity is restored. Press SPACEBAR to exit this test.

 

            The test parameters are listed below with their factory defaults. You may edit them as you please. Loop

current specifications are to be between 16 and 130 mA. On-hook Current max. specification range is 0 to 9.9 mA. 

 

 

4.15.1.6  Handset Noise Test

 

            This test is used to test the handset for noise. The transmit level is displayed in a VU meter style

bar graph. 

 

1.      Do the wiggle test (check the handset for bad cords).

2.      Perform the blow test to check for sidetone.

3.      Check the ear piece for silence.

 

            In the configurations for this test you may select whether or not to include the CO/PBX text on this

test screen. The CO/PBX switch is included on some Unity type sets and disables loop length sensing for internal

gain adjustment. You may also adjust the speaker volume from the Configure a Phone option.

  

4.15.1.7  High Voltage Lamp Test

 

            This test is used to check the neon lamp message waiting indicator for correct turn on voltage. It should

not turn on when 100 Vdc is applied, but should turn on when 120 Vdc is applied. The polarity of the voltage should

not affect the lamp.  You will be prompted that 100 Vdc is being applied and you will be requested to ensure that

the lamp is off. Press SPACEBAR if the lamp is off, or X to indicate it is on.

 

            The next prompt states that 120 Vdc is being applied to the set and the lamp should be on. 

Press SPACEBAR to pass this test or X to fail it. The polarity of the 120 Vdc is then reversed and the lamp should

turn on.

 

            The test may be performed in short and/or Very Long loop. In the Configure a Phone option enter ‘Y’ to

enable a loop length or ‘N’ to disable it.

 

            The set should remain on-hook for the duration of this test. If the set is taken off-hook the message

‘Set is Off-hook! High Voltage Disabled!’ is displayed.  When the set is placed on-hook the test will be restarted.

 If SPACEBAR is pressed Pass status will be assigned to the test. If X is pressed Fail status will be assigned

to the test.

 

4.15.1.8  Ring Tests  #1

 

            This option allows you to test the ringer on the set.  The Pass/Fail criteria will be displayed on the

screen during the ringing test. If continuous mode is selected the SPACEBAR or X must be pressed to go

to the next test.  If the ringer is not in the continuous mode the off-hook state will also exit this test with a

Pass and go to the next test.

 

The following are the default parameters:

 

 

            The ringing level ranges from 1-100%, and is directly proportional to a voltage level of 1-100 Vrms. 

 86 Vrms is the typical ringing voltage. The phone should be tested above and below this level.

 

4.15.1.9  Ring Test # 2

 

            This test is identical to the previous test except that the configurations may be different.


4.15.1.10  CLASS Test #1

 

            This test allows you to test the set’s display and CLASS receiver.  The settings of the test parameters

will be displayed on the screen during the CLASS test. Taking the phone off-hook will exit this test with a Pass.

 

            You may edit the parameters for CLASS tests 1, 2 and 3 from the Configure a Phone option. 

You may also add comment lines to appear on the the screen during the Auto Mode test by selecting option 4. 

These comments will tell the operator what to expect to see on the display during each test. 

 

            The defaults for CLASS test #1 are shown below.

 

 

When this test is run in the Auto Mode, the CLASS Test #1 screen should appear as follows:

 

 

            When F5 is set  to ‘Send off-hook CLASS (CIDCW)’ you will be prompted to go off-hook. 

Space or X must be pressed when the set's Ack status is shown.

 

4.15.1.11  CLASS Test # 2

 

            This test is identical to the CLASS Test #1 except the configuration may be different to allow you

to test the display under different operating conditions. The  Auto Mode screen for CLASS test #2 should appear

as follows:

 

 

4.15.1.12  CLASS Test # 3

 

            This test is identical to the previous two tests except the configuration may be different. 

Refer to CLASS Test #1 for test details.

 

  

4.15.1.13  Touch Tone Test #1

 

            The Touch Tone tests #1 and #2 are used to test the accuracy and level of the set’s DTMF generator. 

The screen displays the set parameters and prompts you to dial the defined sequence. The digits will be displayed

as they are received. If an incorrect digit is received the test may be restarted by the SPACEBAR. The X key

will abort the test and go to the next one in the Auto Mode sequence. The defaults for Touch Tone Test #1 are:

 

AC Receive Percentage (1-100%):                                    100%

DC Loop Length (Short/Medium/Long/ V Long):  Short

Polarity (Normal/Reversed):                                              Normal

Required Tone Sequence (24 digits max):                          123456789*0#

  

4.15.1.14  Touch Tone Test # 2

 

AC Receive Percentage (1-100%):                                    10%

DC Loop Length (Short/Medium/Long/V Long):                   Long

Polarity (Normal/Reversed):                                              Reversed

Required Tone Sequence (24 digits max):                          123456789*0#

 

4.15.1.15  Redial Test

 

            This test measures the DTMF on times and interdigit times for the redial key. It will prompt you to go

on-hook for two seconds and then to press the redial key. The digits will be displayed as they are received. 

If the test fails you may press function key F10 to see the timing information.

 

            Some redial sequences may require a pause in the dialing sequence. Pauses are long delay times

between two successive DTMF digits and will be displayed as ‘PSE’ in the interdigit row. The screen will appear

the same as the one shown in section 4.7.

 

            On-hook states, or when DTMF character state does not change within 1.5 seconds, signifies a break

in the digit sequence. The break in sequence causes the average Tones Per Second (TPS) parameters to be

updated on the screen. Press ‘C’ to clear the screen before restarting the test.

 

Note:  Some sets do not redial well on the very long loop setting.

 

            The following parameters may be configured for the Redial Test:

 

 

4.15.1.16  Programming Screen #1

 

            This screen is intended to prompt you to clear the set’s memory before starting to test and program it. 

Fifteen lines of text are available. The following text is the default. 

 

Clear Memory Screen

 

To clear the set’s memory:

Press the OPTIONS, HOLD then # key in order.

 

After 7 seconds the set should display...

            Memory Test: PASS

After another 5 seconds...

            Jan 1 1:01a

 

The display should be dim. Check the LCD contrast control.

 

4.15.1.17  Programming Screen #2

 

            This screen is intended to prompt you to test the set’s programming keys. 

Fifteen lines of text are available. The following text is the default:

 

Key Test

 

To test the set’s keys check the display as you press the following keys:

 

Press                          Message

Callers                        No callers

Save                           No Number

Dial, Recall, ¬          Press memory key

All memory keys        No Number

 

4.15.1.18  Programming Screen #3

 

            This screen is intended to prompt you to program the FIU indicator. Fifteen lines of text are available. 

The following is the default:

 

Programming the FIU Indicator

 

To program the FIU indicator go off-hook, then press the following keys:

 

SAVE, Dial pad 1, Memory key 1, SAVE

SAVE, Dial pad 0, Memory key 2, SAVE

 

With the set off-hook pressing memory key 1 should cause the FIU LED to go on.

Pressing memory key 2 should cause the FIU LED to go off.

  

4.15.1.19 Programming Screen #4

 

            This screen is intended to perform a user defined function. Defaults are shown below and prompt

you to program the *66 and *69 features on memory keys 1 & 2.

 

Program *66 and *69 Features

 

Press SAVE, Memory key 1, *66, SAVE

Press SAVE, Memory key 2, *69, SAVE

 

Verify by pressing memory keys and checking the display.

Check the battery on sets over two years old.

 

4.15.1.20  Programming Screen #5

 

            This screen is intended to prompt you to program a sequence of numbers into the set’s memory.

It prompts you to test the interdigit, digit duration, and digits per second parameters of the repertoire memory

function of the set. You will be prompted to program the sequence 123456789*0# into memory 3.

 

Program Repertoire Memory 3 Press SAVE, Memory key 1, 123456789*0#, SAVE

 

4.15.1.21  Memory Dialing

 

            This test prompts you to press the memory key to test the repertoire function of the dialer. 

The digits will be displayed as they are received. It also indicates pauses. If the test fails you may press

function key F10 to see the timing information. Version 2.2 has a Maximum Pause time field.

Minimum = 180-510 ms and Max = 1000-9999 ms. 

 

            The following parameters may be configured for the Memory Test:

 

 

4.15.1.22 Programming Screen # 6

 

            This screen will prompt you to clear the set’s memory after testing the memory functions.

Fifteen lines of text can be edited in the Configure a Phone option. The defaults are as follows:

 

Clear Memory Screen

 

To clear the set’s memory:

Press the OPTIONS, HOLD then # key in order.

 

After 7 seconds the set should display...

            Memory Test: PASS

After another 5 seconds...

            Jan 1 1:01a

 

The display should be dim.  Check the LCD contrast control.

 

4.15.1.23  Pulse Dial Test

 

            This test measures the timing sequence of pulse dial sets. You will be prompted to go off-hook and

dial the required digits. The percent break and pulsing speed are displayed for each digit dialed along with

their respective Pass/Fail status. 

 

            The following are the Auto Mode defaults for the pulse dial option. The Interactive Mode defaults are

the same except that they do not allow you to specify the number of digits required, the Loop Length, or the s

peaker volume.

 

 

4.15.1.24  Extension In Use Test

 

            This test allows you to test the Extension in Use (EIU) indicator and its associated circuitry. You will

be asked to confirm that the EIU indicator turns on and then off in up to four different line conditions. Note that

some phones have EIU circuitry that may respond to a sudden increase in loop length (short to long) and show

that an EIU was detected. Be careful when setting up Auto Mode tests that you do not change loop lengths

while the set is off-hook.

 

            The options are as follows:

 

Perform EIU test On-hook (Y/N):                 Y

Perform EIU test Off-hook (Y/N):                 Y

Perform above Short Loop (Y/N):                 Y

F4 - Perform above Long Loop (Y/N):          Y (F4 will change loop length)

 

            F4 allows you to select a second loop length to perform the EIU test in.  You cannot answer ‘No’ to

all 4 options.

 

4.15.1.25  Dial Tone Test

 

            This test prompts you to listen to dial tone in the receiver and ensure that it sounds clear. 

The following are the default parameters for this test.

 

Speaker Volume:                  0                     

AC Dial Tone Level: 100%

DC Loop Length:                  Short

Prompt Texts (4 lines):

            Ensure the dial tone sounds clear.

            Check the receiver’s volume control.

  

4.15.1.26  Hold Key/LED Test

 

            This test allows you to test the Hold key function of the set. The hold test may be configured to be

performed in two loop lengths, one of which is always short loop. 15 lines of text may be edited. 

The default parameters are shown below.

 

  

 

4.15.1.27  Transmit Test

 

            This test provides a visual indication of the set’s transmission level. It displays a VU meter style

bar graph on the screen representing the set’s output. DTMF level may also be seen on the VU indicator.

The privacy key should mute the handset. 

 

            The transmit test can be configured to be performed in two different loop lengths. 

The following are the defaults for the Transmit test:

 

Test Short Loop Transmit (Y/N):                  Y

F4 - Test Long Loop Transmit (Y/N):            Y

AC Level Short Loop (1-100%):                   100%

AC Level Long Loop (1-100%):                    100% ( F4 will change loop)

Speaker Volume:                                       0         

 

Include text ‘Privacy key should mute the handset’ (Y/N): N

 

            The long loop level should be the same as short loop to allow for level comparison. Normally long

loop transmission is boosted by approximately 6 dB wrt short loop by the set. 

 

4.15.1.28  AC Power Failure Test

 

            This test is used to test AC line powered sets. These sets are expected to work as ‘no frills’

phones if the AC line power is removed.  Hook switch and DTMF status indicators are included. 

 

            The loop length may be configured for any of the four loop lengths. The default loop length is long. 

Eleven lines of text are editable.

 

 

4.15.2  Configure a Phone

 

            The Configure a Phone option gives you the ability to define Pass/Fail criteria for the set of tests

defined for a specific phone. These tests are saved as a configuration file to be used in the Auto Mode.

 

            When this option is selected a box will appear with a list of phone descriptions. To select a phone,

scroll up or down the list until the phone you wish to select is highlighted and press ENTER. If you have a

mouse simply click on the phone you wish to select with the left button.


            Once you have selected a phone, a menu will appear with the following configuration options. 

After editing the configurations, press ESC to return to the Configure a Phone menu.

           

 

            All valid edit keys are listed in the help screen.

 

4.15.2.1  Pauses After Tests

 

            You may pause after some of the tests in the Auto Mode if desired. This will allow the Pass/Fail

status for the test to be reported and seen before continuing to the next test.

 

 

4.15.2.2  Change Phone Tests

 

            You may change the order in which the Auto Mode tests will be executed in this option. Order the

tests as you please by numbering them from 1 to 28.  Zero or blank tests are not performed. Use <Ctrl> Y

to erase fields from the cursor position. The screen appears the same as the Add a Phone screen shown

in section 4.15.1.

  

4.15.2.3  Save Changes and Exit

 

            Once you have configured the parameters for a phone, select this option to save your changes

to a file and exit. ESC will exit this screen without saving the configurations.

 

4.15.3  Copy a Phone

 

            Allows you to save the configurations for one phone to another file. Once you have selected this

option a list of phones will appear on the screen.  You will be prompted to type a filename for the destination

 and a description of the phone.  Once the filename has been entered, you will be returned to the Supervisor

Menu.

 

4.15.4  Delete a Phone

 

            Once you have selected this option a list of phones will appear on the screen. Once you have

selected a phone you will be asked if it is the phone you wish to delete. Press 'Y' if you want to delete

the phone or 'N' if you do not want to delete the phone.

 

4.15.5 Change Password

 

            When you select this option you will be prompted for a new password. Type in your new password

(maximum 10 characters) and press ENTER. You will be prompted to type in your new password again

to verify it.If you have entered the same password twice you will have successfully changed your password. 

If there is a problem with the verification, you will be asked to enter your new password again.

Once the passowrd has been accepted, you will be returned to the Supervisor Menu. 

 

            The password is stored in an encrypted file called <password.dat>. If this file is accidentally destroyed

you must copy it from the master or backup TTS-100 PC software diskette to your working directory. 

The default password is TTS100.

  

4.15.6 Daily Statistics

 

            Daily statistics for each phone type are kept on file. To view phone counts for a particular day, enter

the date that you wish to view and press ENTER.  The phone type and the number tested will be displayed. 

If there are no entries for that date, the text “Date Not Found!” will be displayed. These files are overwritten

every month. If a backup is required the files should be copied to another disk monthly. The date files are

saved as <*.pct> for POTS phones and <*.ect> for EBS phones.

 

            Note that if the date on your computer does not change this statistic will be incorrect.

 

5.0 EBS Mode

 

            The EBS line will allow you to connect a maximum of one primary set, one 18 button add-on, and

one 36 button add-on. The EBS line will acknowledge four addresses (0 - 3). A primary set will always report

to address 0. An 18 button add-on will occupy address 1. A 36 button add-on appears to be two eighteen

button add-ons and occupies addresses 2 and 3. Since add-ons are always associated with a primary set,

and do not have a 900 W terminating impedance, a primary set (or the internal 900 W termination) must

always be present when testing add-on(s). The internal 900 W termination will be enabled or disabled by

the TTS when the Reset System command is executed.

 

Version 2.2 software allows the use of 16 button primary sets with one or two 22 button add-on modules.

 

            The EBS menu provides access to many functions for testing an EBS telephone. In the top right-most

corner, a block states the current loop length.  You may change this loop length by pressing 1, 2 or 3.

Below the loop length, the polarity status is displayed.  Polarity will be either ‘Normal’ or ‘Reversed’. An EBS

set should only function in Normal polarity mode. Reversed polarity is used when the tip and ring of the sets

cord have been reversed. The following options are available from the EBS menu:

 

 

            F5 is used to set the amplified speaker volume. 

            F1 invokes the help menu.

 

            Tests may be executed individually from the Interactive Menu, by pressing the character corresponding

to the desired selection. Once the test has been completed you will be returned to the Interactive Menu.


 

            Tests executed from the Interactive Menu are configurable from within the Configure Tests option. 

All parameters will be set to their default upon start up of the software. You may change the parameters

as you execute the tests, or save them to file. The <defaults.ecg> is the start-up file for the Interactive mode.

 

            Tests may also be set up as a user-defined series to be executed in the Auto Mode. The test series,

and its configurations, can be established in the Supervisor Mode option.

 

5.1  Auto Mode

 

            The Auto Mode allows you to run a series of tests that have been previously set up in the Supervisor

Mode. The tests will be run one after another and provide a summary report of the Pass/Fail status of each

test once all tests have been completed. Each of the available tests will be described in the following section.

 

            During the execution of the various Auto Mode tests the following keys are used:

 

SPACE          Causes the next test to be started. If the previous test was complete it will be labeled as ‘Passed’. 

If the previous test was incomplete it will be labeled as ‘Failed’

 

X                    Causes the test that was just completed to be labeled as ‘failed’.

 

R                    Causes the current test to be restarted. It is useful when the handset

                      is not enabled in the transmit tests.

 

ESC               Returns you to the Interactive Menu.

 

F5                 This key is enabled for most options in the EBS menu. It allows changing the amplified speaker volume.

 

Backspace     Backs the program up to the previous test.

 

5.1.1  Pass/Fail Summary

 

            This screen will be displayed when the last test in the Auto Mode series has been completed.

The number of failed tests will be displayed for each phone. Pressing ENTER will restart the tests and

increment the phone count.  ESC returns you to the Interactive Menu. The following screen is an example

of what will be displayed.

 

  

5.2  Address/Data Mode

 

            The function of the Address/Data Mode is to allow you to send a hex code command to a particular

address and have the set execute that command. This option will give you the choice of one of the following:

 

SYMBOL 183 \f "Symbol" \s 14 \h    Enter codes to the TTS unit and have it execute the codes immediately.

SYMBOL 183 \f "Symbol" \s 14 \h    Recall a file previously created and send codes to the TTS unit. 

In turn the TTS-100 will immediately execute the codes contained in the file.

 

            When the Address/Data Mode is selected, a menu will appear containing the following selections:

 

SYMBOL 183 \f "Symbol" \s 14 \h    Manual Entry

SYMBOL 183 \f "Symbol" \s 14 \h    Auto Execute

 

The hex code commands are listed in Section 6, and can also be obtained on line by using function keys F3 - F8.

 

5.2.1 Address/Data Mode - Manual Entry

 

            Accessing this menu option gives you the ability to write a hex code command to a particular address

location and have this command executed when the final character is pressed. There is no need to press ENTER

once the code is entered. The data entry format used is ACC, where A is the address location and CC is the

EBS Hex Command Code. For example, the following set of commands will:

 

1.   Enable the display

2.   Send the message 'HI' to the bottom row at approximately the center of the display

3.   Disable the cursor

 

                        Enable the Display

09D

            Set Cursor to Bottom Row

0B5

                        Move over 10 spaces

0C0

 

0C0

 

0C0

 

0C0

 

0C0

 

0C0

 

0C0

 

0C0

 

0C0

                                    Display 'H'

0E8

                                    Display 'I'

0E9

                        Disable the Cursor

08C

 

            Consider the first command 09D.  The first character, 0 (Zero), is the address location of the display. 

Since the display is attached to the primary set, the display is also at address location 0. The next two

characters represent the EBS hex command code.  9D is the hex code to ENABLE DISPLAY. Chapter 6

contains tables of the EBS hex codes required to operate the TTS software and unit. The command hex codes

are also available from the help bar at the top of the screen. By pressing the appropriate function key, a window

will appear displaying the available codes that can be sent from the CO to the phone set.

 

            Press ESC to quit this option and return to the Address/Data mode menu.

 

5.2.2 Address/Data Mode - Auto Execute

 

            This menu option gives you the ability to retrieve a test routine file and automatically run it multiple times. 

The file is a text file created in the Configure Tests Interactive Menu option.

 

            When the file is selected you will be asked how many times you wish to execute it. You may run it as

many times as you wish.  (99 will run the sequence continuously until ESC is pressed.) Once the entire routine

is finished you will be asked if you wish to execute another file. If you answer yes, you will be returned to the file

selection box, otherwise the Address/Data menu will be displayed.

 

5.2.3  Address/Data Mode - Create a File

 

            You may create a new file or edit an existing one in the Configure Tests Option.  If you choose to create

a new file you can enter up to 99 codes. When you have completed your test routine, press F2 to save your

configurations. You will be prompted for a filename to save your file. A maximum of eight characters are allowed. 

Do not include an extension, the TTS software will add the extension <.tst> for you. 

If a longer file is needed you may create it with a text editor with one code per line. 

Name it using <.tst> as the file extension.

 

5.3  Display Test

 

            Display Test will send a preprogrammed message to the display.  The default message is:

 

DIGITAL PRODUCTS LIMITED

TELEPHONE TEST SYSTEM

 

            The text may be altered from the Interactive Menu in the Configure Tests option. The text is sent to

the display in two lines, with up to 50 characters per line. You may configure the length of the lines by pressing

F4 and entering any number between 1 and 50.  

 

            This test may also be configured for the Auto Mode tests. The Auto Mode performs Display Tests #1 and #2. 

Each test can send different text to the display at different loop lengths. 

 

5.4  DC Current & Ack Timing

 

            This option allows you to test the set’s EBS transmit level, Ack signal to a CO code, and DC current draw. 

This test will be performed for short, medium, and long loop lengths. 

 

 

            The acceptable max/min parameters for this test can be established in the Configure Tests menu option. 

 

            The EBS level is the level at which the set is transmitting its acknowledge signal to the CO. 

EBS transmit levels are measured at the set and should not change with a change in loop length. 

 

            Default levels have been set in accordance with Northern Telecom specifications. A primary set will

transmit between 1.1 to 1.5 Vp-p. If the primary set is not present, the level of the add-on will be measured. 

Add-on levels may be slightly higher than primary levels. Ensure the ‘Reset System’ option has been run to

properly terminate the TTS.

 

 

            The Ack timing is referenced with t = 0 being the moment that the TTS sent the start bit of an EBS code.

A valid Ack will be returned from the phone at approximately t=15.50 ms and will remain on the line for 3.00 ms. 

 

The TTS begins looking for the Ack at t=15.75 ms and will report start time of the ACK detection and ACK duration

from this point on.  To allow for possible delays on the line, the default settings for this test will validate an Ack

that begins at or before t = 16.00 ms and is present for at least 2 ms.   

 

            The DC current is measured 0.5 seconds after the EBS code is sent. Both the active and idle currents are

displayed for each loop length. Typical values for idle and active modes are 8-10 mA and 16-17 mA, respectively,

and should not vary with loop length. The add-on currents should be zero. (Older EBS phones may draw 40 mA or more.)

 

5.5 Display Character

 

            This option allows real time typing of characters to the EBS display. You will be prompted to enter

characters on the keyboard. As you press a key on the keyboard, the display on the phone will simultaneously

display the character typed. The display will ‘word wrap’ automatically. To clear the display, press the

BACKSPACE key. To quit the menu option and clear the display press the ENTER key. To quit the menu

option without clearing the display press the ESC key.

  

5.6  LCD Indicator Strobe

 

            LCD Indicator Strobe may be configured to perform the following functions:

 

1.      Turn on all LCD indicators on the set(s) that are connected to the TTS unit. When all the LCD indicators

are on, the TTS will wait 1 second.

2.      The TTS will flash all the LCD indicators.  The LCD indicators will flash for 1 second.

3.      The TTS will wink all the LCD indicators.  The LCD indicators will wink for 1 second and then the LCD

indicators will be turned off.

 

            The parameters for this test may be set up from the Interactive menu in the Configure Tests option. 

The LCD Indicator Strobe configurations will provide you with the following options: ‘ON’, ‘Wink’, ‘Flash’,

‘Off’, and ‘Pause’.  Answer ‘Y’ to enable an option, or ‘N’ to disable it. The pause option requires a number

between 0 and 9 to set the number of seconds to pause between tests. If all tests are answered ‘N’, only the

screen will prompt you that all indicators should be off.  This test will be performed for all configured addresses

as detected by ‘Reset System’. Version 2.2 has codes added for 16 and 22 button sets. 

 

            The Auto Mode test can be set up in the Configure a Phone option in the

Supervisor Mode.  All non-acknowledged codes will be reported before continuing to the next test.

 

5.7  Key Test

 

            This menu option allows you to see the codes generated by the EBS set(s) that are connected to the TTS-100.

When you press keys on the EBS set(s), the codes will be displayed on the screen. 

Repeat, Collision and Parity bit abnormalities will be shown at the end of the description line by the R, C, and P letters.

 

         

            This test can be performed in all four loop lengths. The Auto Mode configurations can be defined in the

Supervisor Mode - Configure a Phone option.  There are no configurable parameters for this test in the Interactive Mode.

Version 2.2 has descriptions added for 16 and 22 button sets. 

 

            When this test is executed in the Auto Mode, the screen will prompt you to press various keys on the set. 

The software will prompt you if an incorrect code is received. If the key continues to fail, press ‘X’ to go to the next

test, or ESC to return to the Interactive Menu.

 

5.8  Reset System

 

       Resets the sets under test and provides a visual display of which addresses are connected to the TTS-100 unit. 

 

 

            The TTS-100 is reset when you enter the EBS Interactive Menu from the opening menu. However, running

this test is the only way to be provided with a visual indication of which sets are connected. The TTS will report

addresses 0-7, but will only support addresses 0-3. The remaining addresses (4-7) are provided to allow you

to ensure that a phone is not reporting on more than one address.

 

            This test should be used every time the phone system under test is changed. 

The state of the 900 W termination can only be changed from this test option.

 

            There are no configurable parameters for this test when run in the Interactive Mode.

 

            When this test is executed in the Auto Mode it will run the Reset System test and a Loop Back test. 

In the Loop Back test, the TTS will send hex commands to the phone and the phone will echo them back. 

This is used to ensure that the set is receiving and transmitting properly. The Loop Back test must be

configured in the Configure a Phone option from the Supervisor Mode menu.  The screen will appear as follows: 

 

 

            The first two items on this screen define the Reset System configurations. The power up pause is

measured from the time that the Reset occurred, and is defined as the maximum time allotted by the TTS

for the set to power-up properly. The power up pause may be configured from 1-99 seconds.

 

            The remaining parameters pertain to the Loop Back test. The Loop back test is performed in two loop

lengths on every pass. The Display test will send characters to the display and provide a visual indication

of the status of every character on the display. 

 

            Status Bytes are hex codes normally sent from the phone to the CO, and are used by the CO to identify

that there is a working display connected to the set. The CO will send the phone a Transmit Display Status code. 

In response to the CO request, the first byte sent by the phone will be hex code 34. The Status byte will be sent

12 times for every pass of the Loop Back test. Every byte sent from the phone for the next 11 passes will be hex

code 30.

             The LCD test will power every LCD on a primary or add-on one at a time. 

 

            The number of passes defines the number of times that the TTS should execute the Loop Back test. 

If set to 0, the Loop Back test will not be performed. 

 

            The Reset System will only be performed once, and will not be repeated for every pass of the Loop

Back test.

 

            Version 2.2 has codes added for 16 and 22 button sets and may be enabled by a Y in the

Test 12-14/19-22 LCDs for add 0/1-2 option. Version 2.2 also allows multiple addresses to be loop back tested

at once. Enter all desired addresses in the address field. 

 

In the Auto Mode, if a set does not report that it is connected, the phone cable may be reversed. 

To check for this fault, press the ‘R’ key to reverse the polarity at the jack and the TTS will again

reset the system. If the set reports connected with the polarity reversed, the polarity will remain reversed

for the duration of the Auto Mode tests. The polarity will be set to normal at the end of the Auto

Mode sequence.

 

            If the Reset System is being executed in the EBS Interactive Mode, the polarity at the jack must be

reversed from the Interactive Menu using the +/- keys.

 

5.9  Send CO Tones

 

            This option allows you to send a CO tone to the Handsfree, Voice, Handset or Alert system. 

You may choose from one of the following CO tones:

 

Dial Tone

Stutter to Dial Tone

Ring Back Tone

Busy Tone

1 kHz Tone

Alert Tone (EBS Ringing)

 

            The AC levels default to 100% for this test. The default AC levels for short, medium, and long loop

length may be set up in the Configure Tests option from the Interactive Menu. 

 

            The Auto Mode will allow you to execute the Alert Test and the Dial Tone Tests. The Dial Tone tests

are done for Handset, Handsfree, and Voice. The Handsfree and Handset tests have the same configurations

and can be toggled on the set by pressing the Handsfree and release keys. The following parameters may be configured:

 

AC Rx/Tx Level (1-100):                   100%

DC Loop Length (S/M/L/N): Short (N - no test desired)

 

Up to four lines of prompt text are available. You will be prompted to adjust the speaker level for the hands free

and voice options and to listen for clear CO tone.

 

5.10  Transmit Level Test

 

            This option displays the level of the audio transmitted by the phone in a VU meter style bar graph. 

You may select to test either the handset mic or the hands free mic. The VU meter becomes active once

the mic has been selected. If the handset is in the cradle when the handset mic was selected, you will have

to restart the test (R) to activate the VU meter.

 

 

            The AC transmit levels for this test will default to 100%. You may change the levels for short, medium,

and long loop from the Configure Tests option in the Interactive menu.   

 

            The bar graph is annotated in dBm units with 0 dBm corresponding to a voltage of 0.949 Vrms across

a 900 W termination. The maximum level which can be sensed is -2 dBm wrt 900 W.

 

            The Auto Mode will allow you to perform the Transmit Tests for both Handset and Handsfree operation. 

Press the ‘Handsfree’ keys to enable the handsfree mode.  Press the ‘Release’ key to enable the handset. 

The following parameters are the defaults for the Auto Mode test:

 

AC Rx/Tx Level (1-100):                   100%

DC Loop Length (S/M/L):                 Short

Speaker Volume:                              5

 

5.11  User Mode

 

            This menu option allows you to perform any of the following features:

 

1.      Turn on or off any LCD indicator.

2.      Enable the Buzzer (and wink key).

3.      Make any indicator ring (alert tone and flash key).

4.      Make any indicator wink.

5.      Make any indicator flash.

 

            These features are enabled with Hex code commands. The data entry format is:   AKKC

 

Where A is the address location of the set you wish to send the command to. KK is the key number to test (01-22). 

C is the code that tells the key what to do. C can be as follows: O is OFF, N is ON, B is enable buzzer,

R is enable ringing, W is WINK, and F is FLASH.

 

            Key number 1 is the bottom-most left key. The keys are counted from bottom to top. The 36 button

add-on is numbered key 1-18 for address 2, with key 19 beginning the sequence 1-18 for address 3.

 

            For example, you wish to ring key 10 on a 36 button add-on at address 2. The format will be 210R. 

The 10th key indicator will flash and you will hear a two second burst of ringing. Note that on long loop the ringing

is greatly attenuated in this test. If you wish to turn on the 8th indicator of a primary set, the format will be 008N. 

The set will display a black diamond on the indicator when the key is on.

 

5.12  Configuration Files

 

            Upon entering this option the following menu will be displayed:

 

1.      Write the current configuration to a file

2.      Retrieve a configuration file

 

            Upon selecting option 1 you are prompted to select a filename in which to save the configuration information. 

If the file already exists then you will be asked if you wish to overwrite the file.

 

            Retrieve a Configuration File prompts you to select a filename from the pick list. The configuration file

selected is read and the program defaults are set according to the file’s saved parameters. Note that the default file is called <defaults.ecg>.

 

5.13  Configure Tests

 

            This is the menu option described in the above topics in which you may alter the various parameters

for tests performed from the EBS Interactive Menu. Once selected, this option will display a menu of the tests

that can be configured.

 

 

            The configurations set up in this option apply only to the Interactive menu. You may write these

configurations to a file to be used again. The <defaults.ecg> file contains the configurations used upon start-up

of the TTS software.  In order to change the power-up defaults you must write your configurations to

the <defaults.ecg> file. 

 

            Details on these tests have been given in sections 5.1 to 5.12. The Default Loop length is a global

parameter affecting all tests in the configuration file and will be discussed next.

 

 5.13.1  Default Loop Length

 

            The default loop length is defined in this option. The AC transmit and receive levels for each loop length

are also specified here.  Any changes made to the default loop length and AC levels will not become active until

the EBS mode has been exited and re-entered from the Opening Menu.

 

Default AC levels are as follows:

 

            Short loop:                 100%

            Medium loop:             32%

            Long loop:                  5%

 

            Both receive and transmit values are specified, with transmit being defined as the direction from the TTS

unit to the phone. The percentage is the voltage ratio that is allowed to pass. The voltage ratio may be

converted to attenuation using the formula:

 

 -20 Log ( percentage / 100 ) = -20 Log (10 / 100) = 20 dB.  

 

            In short loop, the distance to the central office is short and the losses in the cable pair are minimal. 

Therefore, short loop should have no attenuation (100% throughout). Medium loop should have about 10 dB of

attenuation, corresponding to a percentage level of 32%.

 

            On long loops, typical attenuation for the voice band is 14 dB.  However, the attenuation at 8 kHz may

be as high as 24 dB on an EBS line (corresponding to a value of 6%). Therefore, the long loop receive defrault

is set to 6%.

 

             The TTS-100 transmits 8 kHz EBS signaling at a level of 1.3 Vp-p at 100%.  Northern Telecom

specifications state that the set must accept 8 kHz EBS signaling down to a level of 50-55 mVp-p.

The default has been set to 5%, corresponding to a level of 65 mVp-p.

 

5.14 Supervisor Mode

 

When this option is selected a screen appears prompting you for a password.  If you enter an incorrect

password you will be returned to the EBS Interactive menu. Once the correct password is entered, the

Supervisor Menu will appear. The default password is TTS100. This mode may be entered from the

 opening menu as well.

 

 

5.14.1  Add a Phone

 

            This option allows you to write separate configuration files for different types of phones. 

Upon execution of this option you will be asked for the filename in which to save the phone configurations. 

A maximum of 8 characters is allowed.  Do not enter the extension, the TTS software will do this for you. 

Next, you will be asked for a description of the phone. This is the name of the phone as you would like it

to appear on the screen (4X36, 18 BUTTON, DISPLAY, etc.). 

 

            A list of tests will be displayed and you must select which tests are applicable for that phone type.

Enter 'Y' if you wish to include this test or 'N' if you do not want the test included. You may scroll up and down

the screen with the cursor direction keys if you wish to change any of the information you have entered.

 

 

            Press the F2 key to save the information and exit the screen.

 

            Details on these tests have been given in sections 5.1 to 5.12. Two new tests have been added for the

Auto Mode options - the Handset Test, and the Buzzer Test.

 

5.14.1.1 Handset Test

 

            Allows you to test for handset noise and bad cords.  The DC loop length will be displayed and you will

be prompted to wiggle the cord and listen for noise in the handset. No configurable items are available for this test. 

 

5.14.1.2 Buzzer Test

 

            The Buzzer Test is used to test the internal circuitry of the set’s own CO tone generator. 

The TTS-100 will send a code to the phone that will engage the buzzer for the set. 

It also tests the ability of the phone to generate its own Alert tone. 

The buzzer test should alternate between Buzzer tone and Alert tone every second. 

This test applies to the Auto Mode only and has the following configurable parameters:

 

AC Rx/Tx Level (1-100):                   100%

DC Loop Length (S/M/L/N):             Short

 

Up to four lines of text are available.

 

5.14.2  Configure a Phone

 

            The Configure a Phone option gives you the ability to define Pass/Fail criteria for the set of tests defined

in the Add a Phone section. These tests are saved as a configuration file. The configuration file will be used

in the Auto Mode.

 

            Once you have selected a phone, a menu will appear with the following configuration options. 

After editing the configurations, press F2 to save the changes before returning to this menu. 

 

 

5.14.2.1  AC Levels

 

            This option is used to specify the AC loop length parameters for the Auto Mode set under test. 

Six fields are provided. They are receive and transmit specifications for short, medium and long loop lengths. 

The defaults are set to the following:

                       

                                                            Transmit         Receive         

                        Short Loop                    100                 100%

                        Medium Loop                 32                    32%

                        Long Loop                        5                      5%

 

5.14.2.2  Change Phone Tests

 

            This option is used to change the phone description text and to enable or disable the various phone tests. 

It is usually used after copying a phone configuration file to a new name. It allows you to change the test selections

and the operating parameters of the tests.

 

5.14.2.3  Save Changes to File

 

            Once you have made changes, select this option to save your changes to a file and exit. 

This option will save any edits you have done in any field while in the Configure a Phone option. 

           

5.14.3  Copy a Phone

 

            This option allows you to copy the configurations for a phone to another filename. 

It is used when a similar phone is to be made from one that has already been configured. 

Once you have selected this option, a list of phones will appear on the screen. 

Select the phone you wish to copy. You will be prompted to type a filename for the destination,

and a filenam for the description.

 

            New phone configurations are added to the bottom of the pick list. If the list order must be altered

you may edit the <ebs.lst> file with a text editor such as DOS v5.0  EDIT.

 

5.14.4  Delete a Phone

 

            Once you have selected this option a list of phones will appear on the screen. Once you have selected

a phone you will be asked to verify that it is the phone you wish to delete. Press 'Y' if you want to delete the

phone or 'N' if you do not want to delete the phone.

 

5.14.5  Daily Statistics

 

            Daily statistics for each phone are kept on file. To view phone counts for a particular day, enter the

date (1-31) that you wish to view and press ENTER.  All phone types, and the number tested will be displayed. 

These files will be overwritten every month.  If a backup is required, copy all of the <.ect> files. 

If there are no entries for that date, the message “Date Not Found!” will be displayed.

 

5.14.6  Change Password

 

            When you select this option you will be prompted for a new password. 

Type in your new password (maximum 10 characters) and press ENTER. 

You will be prompted to type in your new password again to verify it.

If you have entered the same password twice you will have successfully changed your password. 

If there is a problem with the verification, you will be asked to enter your new password again. 

 

            The password is stored in an encrypted file called <password.dat>. 

If this file is accidentally destroyed you must copy it from the master software diskette to your working directory. 

The default password is TTS100.

 

5.15 + / - Polarity Selection

 

            This option allows you to reverse the polarity of the center two conductors to the phone.

The ‘+’ and ‘-’ keys allow you to select normal and reversed polarity modes. 

 

            The polarity set by these keys will be observed for all tests executed in the Interactive Mode. 

The polarity in the Auto Mode must be set from the Reset System test by pressing the ‘R’ key.

 

6.0 EBS Command Set and Address Configuration

 

            This chapter contains the information and hex codes required to operate the EBS line of the TTS-100. 

The hex codes listed are the codes sent by the TTS (simulated CO) to the set(s). 

The codes that are generated by the set are not listed in this chapter. 

Refer to the Ameritech Publications Document No. AM-TR-NPL-000004 for further information on EBS codes

and address configurations.

 

6.1 Address Configuration

 

            The primary set occupies address location 0.

      

            The 18 and 22 button add-ons have the capability to select their own address. 

When the TTS is reset with an add-on connected, the add-on selects the lowest address location available. 

An 18 button add-on can have an address location of 1, 2 or 3 and a 22 button add-on can have address 1 or 2.               

 

            The 20 button add-on is user selectable to address 1, 2 or 3 for the primary set or address 5, 6 or 7

for the auxiliary voice terminal.  The TTS software cannot fully test a 20 Button Add-on. Note: to test 4X20

sets with add-ons pair 2 must be shorted to pair 3 to allow the set to power up.

 

            The 36 button add-on is essentially two 18 button add-ons. The first 18 keys are always on address 2

and the last 18 keys are on address location 3.

                  

6.2 CO to Primary Set Commands

 

The following two charts list  the command codes sent by the CO to the primary set.                              

  

FUNCTION

HEX   

 

 

Soft Reset

08

Save Indicator Reset

48

Hard Reset

68

Close Echo

09

Open Echo

69

Alert-off

0F

Alert-on

6F

Voice-off

0C

Voice-on

6C

Handset-off

0D

Handset-on

6D

Handsfree-off

0B

Handsfree-on

6B

Buzzer-off

0E

Buzzer-on

6E

Alert tone off

0A

Alert tone on

6A

                                                             

                                                                

FUNCTION

OFF

ON

WINK

FLASH         

   KEY

 

 

 

 

 

 

 

 

 

1

00

60

20

40          

2

01

61

21

41          

3

02

62

22

42           

4

03

63

23

43          

5

04

64

24

44          

6

05

65

25

45          

7

06

66

26

46          

8

07

67

27

47          

9

13

73

33

53          

10

1E

7E

3E

5E

11

1F

7F

3F

5F          

12

19

79

39

59

13

1A

7A

3A

5A

14

1B

7B

3B

5B

 

 

 

 

 

                                                             

6.3 CO to Display Set Commands

 

The following is a list of commands that sent by the CO to the display of a primary set.                                    

                                                        

FUNCTION

HEX   

                                                                 

 

Clear Working Buffer

A9           

Clear Display

AD           

Clear Working Buffer_Line 0

89            

Clear Working Buffer_Line 1

99           

Enable Digit Echoing - Type 1

9B           

Enable Digit Echoing - Type 2

AB           

Clear Working Buffer in 12 sec

B9   

Disable Display Cursor

8C           

Disable Display Echoing

8B            

Disable Display

8D           

Power Down Display

98           

Enable Display

9D           

Enable Display Cursor

9C           

Display Reset

88           

Resume Digit Echoing

BB           

Transmit Display Status

B7           

Working Buffer Cursor to PO

A5           

Working Buffer Cursor to P16 (P24)

B5           

Character Da ta        See Section 6.4                   

 

 

6.4 ASCII Character Set

 

The following are the valid ASCII characters that may be sent to the display.

 

   ASCII CHARACTER

MEANING

HEX  

                        A

Uppercase A

E1  

                        B

Uppercase B

E2  

                        C

Uppercase C

E3  

                        D

Uppercase D

E4  

                        E

Uppercase E

E5  

                        F

Uppercase F

E6  

                        G

Uppercase G

E7  

                        H

Uppercase H

E8  

                        I

Uppercase I

E9  

                        J

Uppercase J

EA  

                        K

Uppercase K

EB  

                        L

Uppercase L

EC  

                        M

Uppercase M

ED  

                        N

Uppercase N

EE  

                        O

Uppercase O

EF  

                        P

Uppercase P

F0  

                        Q

Uppercase Q

F1  

                        R

Uppercase R

F2  

                        S

Uppercase S

F3  

                        T

Uppercase T

F4  

                        U

Uppercase U

F5  

                        V

Uppercase V

F6  

                        W

Uppercase W

F7  

                        X

Uppercase X

F8  

                        Y

Uppercase Y

F9  

                        Z

Uppercase Z

FA  

                        0

Zero

D0  

                        1

One

D1  

                        2

Two

D2  

                        3

Three

D3  

                        4

Four

D4  

                        5

Five

D5  

                        6

Six

D6  

                        7

Seven

D7  

                        8

Eight

D8  

                        9

Nine

D9  

                        SP

Space

C0  

             

                                                               

   ASCII      

 

 

  CHARACTER

MEANING

HEX

 

 

 

            !

Exclamation Point

C1           

            "

Quotation Mark

C2           

            #

Number Sign

C3           

            $

Dollar Sign

C4           

            %

Percent Sign

C5           

            &

Ampersand

C6           

            '

Apostrophe

C7           

            (

Opening Parenthesis

C8           

            )

Closing Parenthesis

C9           

            *

Asterisk

CA           

            +

Plus Sign

CB           

            ,          

Comma

CC

            -

Hyphen (Minus)

CD           

            .

Period (Decimal

CE           

            /

Slant (Slash)

CF           

            :

Colon

DA           

            ;

Semi-Colon

DB            

            <

Less Than

DC           

            =

Equals

DD           

            >

Greater Than

DE           

            ?

Question Mark

DF           

            @

Commercial Art

E0           

            [

Left Square Bracket

FB

            \

Reverse Slant

FC           

            ]

Right Square Bracket

FD           

            ^

Circumflex

FE           

            _

Underscore

FF           


6.5 CO to 18 Button Add-On Commands  

 

The following chart lists the codes that will be sent to address 1, producing 18 key/LCD pairs for each add-on. 

                                                               

   TELCO

 

 

 

 

   KEY NO.

   OFF

    ON

  WINK

 FLASH   

 

 

 

 

 

     12

     00

     60

     20

     40

     13

     01

     61

     21

     41

     14

     02

     62

     22

     42

     15

     03

     63

     23

     43

     16

     04

     64

     24

     44

     17

     05

     65

     25

     45

     18

     06

     66

     26

     46

     19

     07

     67

     27

     47

     20

     80

     E0

     A0

     C0

     21

     81

     E1

     A1

     C1

     22

     82

     E2

     A2

     C2

     23

     83

     E3

     A3

     C3

     24

     84

     E4

     A4

     C4

     25

     85

     E5

     A5

     C5

     26

     86

     E6

     A6

     C6

     27

     87

     E7

     A7

     C7

     28

     90

     F0

     B0

     D0

     29

     91

     F1

     B1

     D1

 

6.6 CO to 20 Button Add-On Commands

 

The following chart lists the hex codes for the 20 button add-on.                       

                                                                

  FUNCTION

 

 

 

 

  KEY NO

   OFF

  WINK

 FLASH

   ON  

 

 

 

 

 

    0

    00

     20

     40

    60  

    1

    01

     21

     41

    61  

    2

    02

     22

     42

    62  

    3

    03

     23

     43

    63  

    4

    04

     24

     44

    64  

    5

    05

     25

     45

    65  

    6

    06

     26

     46

    66  

    7

    07

     27

     47

    67  

    8

    80

     A0

     C0

    E0  

    9

    81

     A1

     C1

    E1  

    10

    82

     A2

     C2

    E2  

    11

    83

     A3

     C3

    E3  

    12

    84

     A4

     C4

    E4  

    13

    85

     A5

     C5

    E5  

    14

    86

     A6

     C6

    E6  

    15

    87

     A7

     C7

    E7  

                                                               

6.7 CO to 36 Button Add-On Commands

 

FUNCTION

 

 

 

 

 

TELCO KEY NO.

OFF

  ON

WINK

FLASH  

ADDRESS

     30

  00

   60

   20

   40    

2

     31

  01

   61

   21

   41    

2

     32

  02

   62

   22

   42    

2

     33

  03

   63

   23

   43       

2

     34

  04

   64

   24

   44       

2

     35

  05

   65

   25

   45    

2

     36

  06

   66

   26

   46    

2

     37

  07

   67

   27

   47    

2

     38

  80

   E0

   A0

   C0    

2

     39

  81

   E1

   A1

   C1    

2

     40

  82

   E2

   A2

   C2    

2

     41

  83

   E3

   A3

   C3    

2

     42

  84

   E4

   A4

   C4    

2

     43

  85

   E5

   A5

   C5    

2

     44

  86

   E6

   A6

   C6    

2

     45

  87

   E7

   A7

   C7    

2

     46

  90

   F0

   B0

   D0    

2

     47

  91

   F1

   B1

   D1    

2

     48

  00

   60

   20

   40    

3

     49

  01

   61

   21

   41    

3

     50

  02

   62

   22

   42    

3

     51

  03

   63

   23

   43    

3

     52

  04

   64

   24

   44    

3

     53

  05

   65

   25

   45    

3

     54

  06

   66

   26

   46    

3

     55

  07

   67

   27

   47    

3

     56

  80

   E0

   A0

   C0    

3

     57

  81

   E1

   A1

   C1    

3

     58

  82

   E2

   A2

   C2    

3

     59

  83

   E3

   A3

   C3    

3

     60

  84

   E4

   A4

   C4    

3

     61

  85

   E5

   A5

   C5     

3

     62

  86

   E6

   A6

   C6    

3

     63

  87

   E7

   A7

   C7    

3

     64

  90

   F0

   B0

   D0    

3

     65

  91

   F1

   B1

   D1      

3

 

6.6 CO to 22 Button Add-On Commands 

                                                               

            The following chart lists the hex codes for the 22 button add-on.                      

                                                                 

  FUNCTION

 

 

 

 

  KEY NO

   OFF

  WINK

 FLASH

   ON  

 

 

 

 

 

    0

    00

     20

     40

    60  

    1

    01

     21

     41

    61  

    2

    02

     22

     42

    62  

    3

    03

     23

     43

    63  

    4

    04

     24

     44

    64  

    5

    05

     25

     45

    65  

    6

    06

     26

     46

    66  

    7

    07

     27

     47

    67  

    8

    80

     A0

     C0

    E0  

    9

    81

     A1

     C1

    E1  

    10

    82

     A2

     C2

    E2  

    11

    83

     A3

     C3

    E3  

    12

    84

     A4

     C4

    E4  

    13

    85

     A5

     C5

    E5  

    14

    86

     A6

     C6

    E6  

    15

    87

     A7

     C7

    E7  

     16

     90

     F0

     B0

     D0

     17

     91

     F1

     B1

     D1

     18

     92

     F2

     B2

     D2

     19

     93

     F3

     B3

     D3

     20

     94

     F4

     B4

     D4

     21

     95

     F5

     B5

     D5

    

 

 

 

 

 

 

 

 

 

 

7.0 Central Office Emulator

 

            The TTS-100 may be used as a Central Office Emulator. The CO emulator allows you to place a call

from the POTS set to the EBS set, or from the EBS set to the POTS set. To run the software enter COEM

at the DOS prompt.  (You must run the TTS-100 program to change the serial port.)

 

            The CO Emulator has one POTS dialable line and four EBS dialable lines. The four EBS lines are

available on feature keys 1 through 4. The phone number and caller ID may be configured for the EBS and POTS lines. 

 

            Key 5 on the EBS set is 'date and time'. Upon pressing key 5, the date and time will be displayed on the

set for approximately 10 seconds. 

 

Feature key 7 is the 'conference-3' key.  You may conference three lines at a time. It can be a conference

among three EBS lines, or between two EBS lines and one POTS line. To establish a conference:

1.   Call one line from any other.

2.   Press the conference key once. 

3.   At the dial tone, dial the third number to be conferenced. 

4.   Once the third line has begun to ring you must press the conference key again to establish the

three-way conference call.  If the conference key is not pressed for the second time, only the calling line

and the third line will have a voice path. The other line will remain on hold. 

 

            Once a three-way conference has been established any one of the three lines may disconnect leaving

a voice path between the other two lines.

 

            Only one conference is allowed.  In a conference, or call transfer, you cannot conference or transfer

again until all lines have released.

 

            The POTS link button does not perform the same function as the conference key on the EBS set.

The link button on a POTS phone allows you to switch the voice path between two incoming lines, however,

you cannot conference all three lines together. If you are involved in a three-way conference you cannot link

from the POTS phone.

 

            The following parameters can be configured:

 

1.      The EBS set’s number and associated name for lines 1 through 4.

2.      The POTS set’s number and associated name.


            The EBS set has the following features:

 

1.      You may draw dial tone by going off-hook, pressing feature key 1-4, or pressing the handsfree key.

2.      After dial tone is received, you may dial a seven digit number.

3.      If you dial the POTS number, the POTS set will ring and CLASS will be sent. The CLASS will

contain the system’s date and time, the EBS number and the EBS name.

4.      An active EBS set may be placed on Hold or Released to the idle state.

5.      Conference-3 is available on key 7.

6.      Date and Time are available on key 5.

 

            The POTS set has the following features:

 

1.      You may draw dial tone by going off-hook.

2.      After dial tone is received, you may dial a seven digit number.

3.      If you dial the EBS number, the EBS set’s feature key 1 will flash and the set will ring.

The EBS display will show the configured POTS line’s name and number on the first line.

4.      Link will access a secondary POTS line dial tone.  Another number may be dialed at this time. 

The two can not be conferenced.

 

Notes:

1.      Feature key 12 is supported as ‘handsfree’ on NT4X37 sets.

2.      The EBS set may take up to 10 seconds to power up after the software is run.

3.      If keys on the EBS set or hook switches are rapidly asserted the software may slow down temporarily. 

 

8.0 Warranty and Technical Support

 

8.1 Warranty

 

            DPL Telecom Techniques guarantees equipment of its manufacture and each part or component

thereof against all defects in material and/or workmanship, and agrees to remedy any such defect at no charge

provided that the defective unit is returned, transportation prepaid, to the DPL Telecom Techniques factory

from which shipment was made.  This warranty extends for a period of one (1) year from the date of purchase. 

In no event will DPL Telecom Techniques be liable for any incidental or consequential damages.

 

            This warranty does not extend to products which have been altered by other than authorized

DPL Telecom Techniques personnel.

 

            A RETURN AUTHORIZATION NUMBER must be obtained from your distributor or DPL Telecom

Techniques before shipping and be displayed clearly on the shipping label.

 

8.2 Technical Support

                                                                       

            For technical support, call    DPL Group

                                                            37 Hanover St

                                                            Saint John, NB

                                                            E2L 3G1

                                                            506 847-0128

 

DPL Group Support is between the hours of 7:30 am and 3:30 pm EST. 

 

 

 


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