Comdial Digital Telephone System Instructions Manual

							InstallationIM166-107
4-LINE, 8-STATION BASE UNIT
%-PORT SYSTEM12-LINES AND 24-STATIONS(BASE UNlT PLUS ONE EXPANSION MODULE)
B-LINE, l&STATION BASE UNIT
48-PORT SYSTEMM-LINES AN0 3bSTATIONS(BASE UNm PLUS TWO EXPANSION MODULES)
GDPORT SYSTEMPC-LINES AND 40.STATIONS(BASE UNIT PLUS ONE EXPANSION MODULE)
72-PORT SYSTEM24.LINES AND 4%STATIONS(BASE UNIT PLUS TWO EXPANSION MODULES)
Figure 3-14. Add-On Expansion Module Configuration
Add-On Expansion Module - continued on next page. . .
3-32 
						

							IM166-107
InstallationTable 
3-6. Station Connections - 408 Expansion Module
BROWN-RED918
RED-SLATE103519
SLATE-RED1020
BLACK-BLUE
113621
BLUE-BLACK1122
BLACK-ORANGE123723
ORANGE-BLACK1224
BLACK-GREEN133825
GREEN-BLACK1326
BLACK-BROWN143927
BROWN-BLACK
1428
BLACK-SLATE154029
SqAREPORTS
SLATE-BLACK1 15130
YELLOW-BLUE
116141131
GRFFN - VIOLET2346
B -244947
BROWN 
s VlOl FT7448
I TF255049TIPPOWER FAIL
SLATE-VIOLET2550RINGSTATION
Add-On Expansion Module - continued on next page . . .3-33 
						

							InstallationIMl66-107Add-On Expansion Module Installation
Each add-on expansion module measures 15.5 wide x
9.4 high x 1.6 wide and weighs approximately 4
pounds. The modules are designed so that you can
attach them to the base unit and connect them to it via
cabling.
[q
You must always connect the first module
to the top location on the base unit.
To 
install an expansion module to a base unit, refer to
Figure 3-15 and perform the procedure detailed in
steps 1 
- 11.
NOTE: 
If you p/an to a/so up-grade the system
software at the same time that you add
expansion modules, be sure to add the
.expansion modules first by following steps 1
through 7 1. After you have installed the
expansion modules and programmed for the
new stations and line ports, you can then
up-grade the 
software as described in the
discussion beginning on page 3-36 titled,
re C&i&e. Following this installation
sequence insures that the new 
sotWare
recognizes the new stations and lines that are
made available by the expansion modules.
1.
2.
3.
4.
5.
6.
7.
8.
9.Disconnect both AC power and external battery
back-up power from the system.
Remove and set aside nameplate from base unit.
This action exposes internal cable connector on
base unit circuit board.
Reach through opening in base unit and mate
module cable plug with base unit circuit board
connectors.
Push excess cable inside base unit housing
through connector opening.
Install expansion module in place on all four
mounting holes. Be sure excess cable 
is not
pinched between add-on module and base unit.
Pull module down to latch in place.
Use flat-blade screw driver to tighten module
securing screw into base unit threaded fastener.
Snap nameplate into slots on top of module
housing.
Attach 
#IO or #I2 insulated, solid copper wire
between the grounding terminal on the expansion
module and the grounding terminal on the common
equipment cabinet.
10. Reconnect the power to the system.
11 
.Refer to Chapter 4, and perform configuration
programming for new station and line ports.
Add-On Expansion Module 
- continued on nexf page. - .
3-34 
						

							IM166-107InstallationTYPICAL BASE UNIT
(O-LINE. 
IC-STATION BABE UNITITOP
LOCATION-BOTTOM
LOCATION-
i~ii~~~~~iiiioiilli~~i~~~~i~ii~i111111111111111111111111111111111
111111111111111111111111111111111
111111111111111111111111111111111
:
B
to *.
0V
-NAUEPLATE(REMOVE TO EXPOSE BASE
UNIT CONNECTORS1
-UPPER MOUNTING HOLES
I2 PLACES)
-LOWER 
YOUNTING HOLES12 PLACES1
TOBASEUNIT
rSECURING
SCREWCONNECTING CABLE
AND PLUG
LSNAP SLOTS FOR
NAMEPLATE
TYPICAL ADD-ON MODULE
-A=a
Figure 3-15. Add-On Expansion Module Installation3-35 
						

							InstallationSoftware CartridgeIMl66-107
Introduction3.
The system requires a plug-in module with the
common equipment base unit to provide the following
functions:
4.
0 Operating System Software Control
0 Default Functional Program
0 Call Cost Storage For System Collected Records
5.
6.
The installed software cartridge provides the operating
system software control of the digital telephone
system.
The system stores call cost records in the software
cartridge and, if you exchange the present software
cartridge with a new one, all call cost records that the
system stored in the present cartridge are lost.
Because of this, be sure to obtain a print-out of all call
cost records and then delete them from memory
before exchanging a new cartridge for the currently
installed one.
7.
The software cartridge plugs into the common
equipment base unit housing as shown in 
Figure 3-16.
The system stores all of the class of service data that
you program into its common equipment memory and
not in the software cartridge; therefore, the system
does not lose any current class of service parameters
if you replace the existing software cartridge with one
that has the same software revision number. However,
when you up-grade the system software by
exchanging the existing software cartridge with one
that has a later revision number, there are several
steps that you should take. If you take these steps,
you will ensure proper system operation with the
up-graded software and you will not have to reprogram
the class of service parameters for the system, line,
and station features.
To install a cartridge,
NOTE: Before installing a software cartridge into a
When up-grading the system software,
1.
2.
Make a copy of the call cost records and then
delete them from the system memory per the
following procedure:
To print records: press INTERCOM, dial 
% # 076 #,
and press SPEAKER.
To delete records: press INTERCOM, dial 
% #
07’7#, and press SPEAKER.
Use a personal computer and a communications
software program to save the currently stored
system data base. Refer to the Chapter 4
discussion titled Video Terminal Programming
Procedure, Remote Programming Configuration for
complete details for doing this.
1.
2.
Remove AC power from the system and
disconnect any battery back-up that may be
connected to it.
Exchange the current software cartridge with the
one that has a later revision number using the
installation instructions below.
Restore power to the system.
Perform the master clear procedure from the VDT
or at the programming station as follows:
- press INTERCOM,
- dial + # 746 *,
- dial 90,
- dial 51684,
- press SPEAKER.
Use the VDT procedure referred to in step 2 and
re-load the system data base into the system
memory.
Installation
To avoid any chance of electrostatic
discharge damage to the software
cartridge, avoid touching the connector
with your fingers while handling it. Also, be
sure to disconnect the AC power to the
base unit (also disconnect battery backup
power If it is connected) before installing
or removing a software cartridge.
base unit, be sure the product code matches
the product code of the base unit (i.e., place an
408 cartridge into a 408 base unit; place an
816 cartridge into a 816 base unit; and place
an 7632 cartridge into a 7632 base unit.
Orient the cartridge so that the connector end is
toward the base unit opening and the removal
notch, located at the top rear of the cartridge, is
toward the front of the base unit.
Insert the cartridge into the base unit cabinet with a
steady gentle pressure until it seats into place.
Then, press the cartridge into place firmly to fully
mate the connections.
To remove a cartridge,
1.Place the bit of a flat-blade screwdriver into the
removal notch. Lift up on the cartridge with the
screwdriver to un-mate the connections.
2. Slide the cartridge out of the base unit. 
						

							IMl66-107
installationTYPICAL
COMMON EQUIPMENT
BASE UNIT
CARTRIDGE(PUSH IN TO INSTALL)
TYPICAL
COMMON EQUIPMENT
BASE 
UNITCARTRIDGE(LIFT CIUT TO REMOVE)
Figure 3-16. Software Cartridge Installation and Removal
3-37 
						

							InstallationIMl66-107Data Communications With The Digital Telephone System
Arrange both station-to-line and station-to-station data
communications through the system telephones, using
a data device, a modem, and a data switch.
Equipment Required
0 Any data device (such as a VDT or a personal
computer equipped with communications software)
0 Any Hayes-compatible modem
0 A data switch (such as the model PC-787JJ-PS
from Precision Components Telephone, Addison IL,
60101, telephone 
1-708-543-6400). This data
switch is applicable for use with modems, FAX
machines, and audio tape recorders.
Connections
Refer to Figure 3-17, and connect the equipment as
illustrated.Use the cable supplied with the data switch
to make the connection between the switch and the
telephone handset jack, and use customer-supplied
cables to make the remaining connections. Make the
modem and data device connections using cabling
specified in the literature accompanying this
equipment.
Certain digital telephone models include a headset
jack located on the rear housing near the line jack.
You can use this headset jack for the data
communications path but you must make the following
changes to the illustrated connections:
0 Leave the handset connected to the telephone and
keep it on-hook.
0 Connect the accessory headset to the handset jack
of the data switch.
0 Connect the telephone jack of the data switch to the
headset jack of the telephone (instead of to the
handset jack as illustrated).
The data switch has a compatibility control located on
the bottom of the cabinet.Set this control to match the
telephone equipment being used. Change the settings
+/- 2 positions from the specified settings to provide
the quietest data path possible.
Use a flat blade screw driver to set the compatibility
control per the following chart:
OlSettinQ Condition
Position 5Handset connected to data switch
Position 9Headset connected to data switch
The data switch has a phase switch located on the
right side of the cabinet. Set this switch to the
NORMAL position (toward the rear of the cabinet).
It is 
very important to set the telephone volume
control to the minimum level when using the data
switch arrangement for data communications.
Communication Procedures
Station-To-Line
To make-a-data transmission to a distant site over a
CO/PBX line,
1.
2.
3.
4.
5.
Set data switch to VOICE.
Prepare modem and data device for data
communications. Refer to information supplied
with software and equipment.
Press telephone line button and hear dial tone.
Set data switch to 
DATA.
Issue dialing command to modem from data device
keyboard.
Station-lo-Station
To make a data transmission to another station
equipped and connected as shown in 
Figure 3-17,
1.
2.
3.
4.
5.
8.
7.
Set data switch to VOICE.
Prepare modem and data device for data
communications. Refer to information supplied
with software and equipment.
Press 
ITCM (INTERCOM on some models) on
telephone and hear dial tone.
Dial other station and set up voice call.Type 
“ATXl D” on data device keyboard but do
press ENTER. Ask intercom party to type “ATA”
on their data device keyboard but 
do press
ENTER.
Complete voice conversation, ask intercom party to
set their data switch to 
DATA and to press ENTER
on their keyboard.
Set data switch to 
DATA, and press ENTER on
data device keyboard. Modems will automatically
complete data connection.3-38 
						

							TO CO/PBX
LINE
EQUIPMENT
LINE CONNECTIONTELEPHONE JACK
f/-DATA JACK
STATION CONNECTION
(SEE NOTE 1)
(REAR VINV), INTERCONNECT
CABLE
n TSupplled with Data Switch)IHANDSET JACK
TYPICAL DATA DEVICETYPICAL
(PERSON,,LvI;MPUTERDATA MODEMTYPICAL
DATA SWITCH
(SEE TEXT)
TELEPHONE
HANDSET(SEE NOTE 
1).
NOTE I: When the telephone Is equipped w/th a headset Jack leave the telephonehandset connected to the telephone and keep It on-hook. Connect the
accessory headset to the handsetjack of the data switch. Connect me cablethat Is supplied tith the data swttch between the fe/ephone Jack
of the data switch and the headset jack of the telephone.Figure 3-17. 
Dais Communications Interconnection Diagram 
						

							IM166-107InstallationSystem Checkout And Failure Isolation
Initial ConditionGeneral Check
The system operating features are set to default
conditions at initial power-up. These conditions
provide a basic operating system with a known set of
parameters, and the system should be initially
checked out with the default conditions in place. At
any time while the system is operating, default
conditions can be reset from station port 10 or 12 per
the instructions provided in Chapter 4, Programming.Check the red light emitting diode (LED) system
status indicator. Be sure that it is on steady. If it is
off or flashing, refer to the paragraph below titled,
Failure Isolation.
Check Out
Check the common equipment and telephone
installation for proper operation by performing the
following resistance and voltage measurements.
Resistance Check
1.
2.
3.Refer to Chapter 5 for operating information and
perform a general operational test of the system by
exercising the features from station port 10 or 11.
Operational parameters are per the system default
conditions as detailed in Chapter 4 until class of
service programming is performed.
Once the basic system is verified as operational,
perform the class of service programming as
described in Chapter 4.
Measure the resistance at the station connector blocks
under the following conditions.
0 AC power cord disconnected from electrical outlet.
0 Common equipment connected to station connector
blocks.
0 Stations wired and wiring punched down on blocks.
0 Bridging clips removed from blocks to isolate
stations from common equipment.
Measure the resistance of each installed station and
wiring from the station side of the connector blocks.
Resistance values will vary with cable length and
station type but should be within the following limits:
- Greater than 700 Kohms
System Status Indicator
A red LED located on the common equipment cabinet
near the music port is the system 
status.indicator.
This indicator is turned on steady when power is
applied to the system. If the indicator flashes after
power up, it could be indicating a processor failure.
Unplug and reconnect the AC power to the power
supply and observe the LED indication. If it still shows
a flashing indication, equipment replacement may be
necessary.
Station Self Test
Self test the multiline stations for proper operation per
the following instructions:
Voltage Check
Make the following voltage measurements at the
station connector blocks under the following conditions:Disconnect line cord at station base.
Press and hold test button (1 for 
Impact
telephones or 
MUTE for DigiTech or Americom
telephones) and reconnect line cord to station
connector. Station will automatically perform self
test routine.
0 Bridging clips installed
1.
2.
3.
Releasetest button as soon as test begins.
Sequence of test is as follows:
0 AC power connected to the common equipment
Measure the voltage across the signal pair. The
measured voltage must be within the following limits:
-28-36VDC
0 Indicators will light in sequence
0 Ringer will sound - be sure volume is set to low
or high
Failure Isolation
4.
0 Indicators and ringer will then turn off at the
same time
Replaceany station that does notpass the self test.
3-41