Comdial DIGITECH Digital Telephone System Instructions Manual

							IMI 66-083Installa’:onSECTION 4
SOmARE CARTRIDGE
INTRODUCTION
A plug-in module is required with the common
equipment base unit to provide the following functions:
Operating System Software Control
Defauft Functional Program
Call Cost Storage For System Collected Records
Installing the software cartridge provides the operating
system software control of the digital telephone
system.
All class of service data that is programmed into the
system is stored in the common equipment memory
and not in the software cartridge; therefore, no current
class of service programming is lost if the software
cartridge is replaced. Call cost records, however, are
stored in the software cartridge. If a new software
cartridge is exchanged for the one currently installed
in the common equipment cabinet, all call cost records
that are stored in the installed 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.
INSTALLATION
The software cartridge plugs into the common
equipment base unit housing as shown in Figure 3-16.
To avoid any chance of electrostatic
discharge damage to the software
cartridge, avoid touching the connector
with your fingers while handling it.
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.
To install a cartridge,
NOTE: Before installing a software cartridge into a
base unit, be sure the product code matches
the product code of the base unit (i-e., place an
SO408 cartridge into a GO408 base unit; place
an SO816 cartridge into a 
GO81 6 base unit;
and place an 
57632 cartridge into a G 1632
base unit.
1.Orient the cartidge 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.
2.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. 
						

							installationIMI 66-083
Figure 3-16. Software Cartridge lnstallatlon and Removal3-28 
						

							IMI 66-083lnstall.~tionSECTION 5
DATA COMMUNICATIONS WITH THE
DIGITAL TELEPHONE SYSTEM
Arrange both station-to-trunk and station-to-station
data communications through the system stations,
using a data device, a modem, and a data switch.
EQUIPMENT REQUIRED
Any data device (such as a VDT or a personal
computer equipped with communications 
software)
Any Hayes-compatible modem
A data switch (such as the model PC-787JJ from
Precision Components Telephone, Addison IL,
60 
IO 1, telephone: l-708-543-6400)
CONNECTIONS
Refer to Figure 3-l 7, and connect the equipment as
illustrated. Certain digital telephone models include a
headset jack located on the rear housing near the line
jack. This headset jack marking reads 
“HDST”.
Installing this telephone requires the following
connection changes:
The telephone handset remains connected to the
telephone and left on-hook.
Connect the accessory headset to the handset jack
of the data switch.
Connect the telephone jack of the data switch to the
headset jack of the telephone. Do not connect it to
the the handset jack as illustrated. Make this
connection with the modular cable supplied with the
data switch. Make the modem and data device
connections using cabling specified in the literature
accompanying this equipment.
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 as follows:
l With the telephone handset connected to the data
switch as illustrated, set the compatibility control to
position 5.
l With the accessory headset connected to the data
switch, set the compatibility control to 
posItIOn 9.
The data switch has a phase switch located on the
right side of the cabinet.
l 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.
COMMUNICATION PROCEDURES
STATION-TO-TRUNK
To make a data transmission to a distant site over a
CO/PBX line,
1. Set data switch to VOICE.
2.Prepare modem and data device for data
communications. Refer to information supplied
with software and equipment.
3.Press telephone line button and hear dial tone.
4. Set data switch to DATA.
5.Issue dialing command to modem from data device
keyboard.
STATION-TO-STATION
To make a data transmission to another station
equipped and connected as shown in Figure 
1,,
1.
2.
3.
4.
5.
6.
7.Set data switch to VOICE.
Prepare modem and data device for data
communications. Refer to information supplied
with software and equipment.
Press 
ITCM on telephone and hear dial tone.
Dial other station and set up voice call.
Type 
ATXl D on data device keyboard but do not
press ENTER. Ask intercom party to type 
ATA on
their data device keyboard but do not 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.
3-29 
						

							LHANDSET JACK
(SEE NOTE 1)
r-TELEPHONE JACK
DATA JACK
I,/
.
COMMON EQUIPMENINTERCONNECT CABLE
(Supplled Wlth Data Switch)
w
0
....................................TYPICAL DATA DEVICE
(PERSONAL COMPUTER OR 
VDT)TELEPHONE HANDSET
(SEE NOTE 1)TYPICAL
DATA SWITCH
(SEE TEXT)
TYPICAL DATA MODEMNOTE 1: When the telephone Is equipped with a headset jack, the fe/ephone handsetremains connected to the telephone and Is left on-hook.The accessoryheadset Is then connecfed to the handset/a& of the data switch.The cablethat Is supplied with the data sw/fch Is connected between the telephone jack
of the data switch and the headset jack of the telephone.
Flgure 3-17. Data Communlcatlons Interconnection Diagram 
						

							IMI 66-083InstallationSECTION 6
SYSTEM CHECKOUT AND FAILURE ISOLATION
INITIAL CONDITION
GENERAL 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 OUT
Check the common equipment and telephone
installation for proper operation by performing the
following resistance and voltage measurements.
1.
2.
3.Check the red light emitting diode (LED) system
status indicator. Be sure that it is on steady. If 
lt is
off or flashing, refer to the paragraph below titled,
Failure Isolation.
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.RESISTANCE CHECK
Measure the resistance at the station connector blocks
under the following conditions.FAILURE ISOLATION
SYSTEM STATUS INDICATOR
AC power cord disconnected from electrical outlet.
Common equipment connected to station connector
blocks.
Stations wired and wiring punched down on blocks.
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 KohmsVOLTAGE CHECK
Make the following voltage measurements at the
station connector blocks under the following conditions:
l Bridging clips installed
l 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
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
The multiline stations can be self tested for proper
operation per the following instructions:
1.
2.
3.Disconnect line cord at station base.
Press and hold MUTE and reconnect line cord to
station connector. Station will automatically
perform self test routine.
Release MUTE as soon as test begins. Sequence
of test is as follows:
l Indicators will light in sequence
l Ringer will sound - be sure volume is set to low
or high
l Indicators and ringer will then turn off at the
same time
4.Replace any station that does not pass the setf test. 
						

							InstallationIMI 66-083
SECTION 7
INSTALLER/USER INFORMATION
REGARDING FCC RULES AND REGULATIONS
This electronic key system complies with Federal
Communications Commission (FCC) Rules, Part 68. The
FCC registration label on the KSU contains the FCC
registration number, the ringer equivalence number, the
model number, and the serial number or production date of
the system.NOTIFICATION TO TELEPHONE COMPANY
Unless a telephone operating company provides and installs
the system, the telephone operating company which
provides the lines must be notified before a connection is
made to them. The lines (telephone numbers) involved, the
FCC registration number, and the ringer equivalence number
must be provided to the telephone company. 
The FCC
registration number and the ringer equivalence number of
this equipment are provided on the label attached to the
common equipment.The user/installer is required to notify
the telephone company when final disconnection of this
equipment from the telephone company line occurs.COMPATIBILITY WITH TELEPHONE NETWORK
When necessary, the telephone operating company provides
information on the maximum number of telephones or
ringers that can be connected to one line, as well as any
other applicable technical information. The telephone
operating company can temporarily discontinue service and
make changes which could affect the operation of this
equipment. They must, however, provide adequate notice,
in writing, of any future equipment changes that would make
the system incompatible.INSTALLATION REQUIREMENTS
Connection of the electronic key system to the telephone
lines must be through a universal service order code
(USOC) outlet jack supplied by the telephone operating
company. If the installation site does not have the proper
outlet, ask the telephone company business off ice to install
one.The correct outlet jack for this system is either a type
RJ21 X or type 
RJ14C.PARTY LINES AND COIN LINES
Local telephone company regulations may not permit
connections to party lines and coin lines by anyone except
the telephone operating company.TROUBLESHOOTING
If a service problem occurs, first try to determine ff the
trouble is in the on-site system or in the telephone company
equipment. Disconnect all equipment not owned by the
telephone company.
if this corrects the problem, the 
faufty equipment must not be
reconnected to the telephone line until the problem has been
corrected. Any trouble that causes improper operation of the
telephone network may require the telephone company todiscontinue service to the trouble site after they notify the
user of the reason.REPAIR AUTHORIZATION
FCC regulations do not permit repair of customer owned
equipment by anyone except the manufacturer, their
authorized agent, or others who might be authorized by the
FCC. However, routine repairs can be made according to
the maintenance instructions in this publication, provided
that all FCC restrictions are obeyed.RADIO FREQUENCY INTERFERENCE
The electronic key system contains incidental radio
frequency generating circuitry and, if not installed and used
properly, may cause interference to radio and television
reception. This equipment has been tested and found to
comply with the limits for a Class A computing device
pursuant to Subpart J of Part 15 of FCC Rules. These limits
are designed to provide reasonable protection against such
interference when operated in a commercial environment.
Operation of this equipment in a residential area may cause
interference to radio and television reception; in which case
the user is encouraged to take whatever measures may be
required to correct the interference. If this equipment does
cause interference to radio or television reception, which can
be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures: Reorient the television or
radio’s receiving antenna, and/or relocate the KSU, the
individual telephone stations, and the radio or TV with
respect to each other. If necessary, the user should consult
the manufacturer or an experienced 
radioItelevision
technician for additiinal suggestions. The user may find the
following booklet prepared by the Federal Communications
Commission helpful: “How to Identify and Resolve Radio-TV
Interference Problems.” This booklet is available from the
Government Printing 
Gffice, Washington D.C. 20402. Stock
No.004-000-00345-4.
This digital apparatus does not exceed the (Class A) limits
for radio noise emissions from digital apparatus set out in the
Radio Interference Regulations of the Canadian Department
of Communications.
Le present appareil 
numerique n’emet pes de bruits
radior%ctriques depassant les limites applicables aux
appareils 
numeriques (de la class A) prescriies dans le
Reglement sur le brouillage radioelectrique Bdicte par le
ministere des Communications du Canada.RINGER EQUIVALENCE NUMBER
The REN of each line is 0.48. The FCC requires the
installer to determine the total REN for each line, and record
it at the equipment.
/3-32 
						

							IMI 66-083
CHAPTER 4
SYSTEM PROGRAMMING
System Programrr>ngSECTION 1
GENERAL INFORMATION
Configuration programming is performed from station
port 10 or station port 12. The programming station
should be an LCD Speakerphone. Any digital
telephone can be installed at station port 10 or 12 and
used for programming but LCD feedback of the
programming operations will not be available.
Programming commands will not be accepted from
any other station port in the system. Station 10 or 12
configuration programming consists of the following
categories:
Class Of Service Programming: This class of
service programming is unlimited as to the features
that can be programmed using it. Class of service
programming is usually performed by the installer
when the system is first put into service.
Admlnlstration Programming: The administration
programming can be used to program all system
features except line attributes and the master clear.
This procedure is usually employed by on-site
personnel whenever system needs dictate.
Attendant Pmgramming: The attendant
programming is limited to those features which may
need reprogramming by the system attendant, such as:
l System clock setting
l System speed dial
l Night transfer of ringing
l Music on hold
l LCD messages
l Station names
l SMDA reports
Afternately, programming can be performed from any
customer-provided Video Display Terminal (VDT) with
an RS-232 compatible, serial interface. VDT
programming is completely menu driven and easy to
follow. It is arranged somewhat differently from station
port programming categories to facilitate menu usage.
VDT programming is discussed in Section 4 of this
chapter.
Prior to taking any programming action, determine the
desired parameters and requirements. Record this
data on the programming reference tables provided for
this purpose along-side the station programming
procedures in the following sections.
Block programming can be performed after a
configuration has been programmed for a particular
line or station. Block programming will program a
group of lines or stations to have the same
configuration as the programmed one. This feature
eliminates the need to individually program every line
or station that requires the same configuration.PROGRAMMING OVERLAYS
A programming overlay is included with each system
for 
use in identifying the buttons required for
programming. The overlay fits over the buttons of the
programming station. 
A full size copy of the
programming overlay is included at the end of this
chapter for use 
as needed.
4-l 
						

							System’ProgrammingIMI 66-083SECTION 2
CLASS OF SERVICE PROGRAMMING
Class of service programming is usually performed by
the system installer. Class of service programming
procedures provide the means for programming all of
the system variables. The installer may elect to
program only the line attributes and allow theremainder of the system variables to remain set to
their 
defautt values.
Perform class of service programming as shown
below.
o
Mark the desired selections in the
charts to record programming needs.
Enter the base level programming mode.
\
TYPICAL FEATURE PROGRAMMING SEQUENCE\
Automatic Hold For Intercom
feature enabled, pressing another
intercom button or line button while
already on an intercom call will
automaticalfy place this existing call onhold.
10 - 57: Dial 10
r next station fea
Dial 
~6 + for configuration
) Dial a feature code to select a programming
parameter.
A current program setting is indicated by a lighted
LED next to the applicable programming button.
When a toggle (ON/OFF) action is provided by a
single button, the lighted LED indicates when the
feature is active.
If a tone burst sounds three times during
programming, it denotes an erronous input.
Programming can be continued after an error
without ending and re-entering the programming
mode 
from base level..
@ Press +k to return to the most previous
programming level. Each press returns to the
next previous programming level.
Press SPKR to end procedure.
4-2 
						

							PG
MASTER CLEAR
The entire programming configuration, as discussed in the following programming procedures, can be defaulted to the factory settings at once
using the Master Clear procedure.
Not on/y does this action return ALL programmed variabbs to a known state of
operatlon, It also clears all 
current/y stored autodial and speed dial numbers.
FEATURE DESCRIPTIONENTRY CODE AND PROMPTING DISPLAYREFERENCE RECORD
Base Level: The first step in anyPress 
ITCM Dial + # 7 4 6 +k“COW/G. MODE”
programming sequence is to enter the
base level. Once in this mode, the
master clear can be performed.
Master 
Clear: Returns entire systemDial 90.“MASTER CLEAR n
to default and clears all stored auto
and speed dial numbers.Dial 5 
1 6 8 4 to clear the entire system. System
returns to normal operation mode automatically. 
						

							SYSTEM DEFAULTSl Mark the desired selections in the charts to record programming needs.
l Dial the feature code and then dial the selection code or press the programming button to program the selection.
NOTE: A current program setting is indicated by a lighted 
Lf D next to fhe programfning button for that selection.When a toggle (on/oH) action
is provided 
by a sing/e button, the lighted LED indicates an active feature.
FEATURE DESCRIPTIONENTRY CODE AND PROMPTING DISPLAYREFERENCE RECORD
Base Level: 
The first step in anyPress ITCM Dial +k# 7 4 6 +k.“CONFIG. MODE ”programming sequence is to enter the
base level. Once in this mode, any
desired configuration can be set.
System Default: The systemDial 10.“SYSTEM DEFAULT”
configuration features can bePress 
# to default system features.
defaulted to factory settings. These
System returns to configuration mode.
values will provide satisfactory system
performance in a broad range of site
applications.
Llne Default: The line configurationDial 30.“LINE DEFAULT wfeatures can be defaulted to factoryPress # to default line features.
settings. These values will provide
System returns to configuration mode.
satisfactory system performance in a
broad range of site applications.
Statlon Default: The stationDial 50.“STATION DEFAULT ”configuration features can beDial 00 to default station ports system-wide.
defaulted to factory settings. These
-OR-
V&leS Will provide SafiSfaCfO~ SystemSe&f Station pfl f0 be defaUlted:performance in a broad range of site
- Station 10 - 57: Dial 10 - 57 .
applications.
Dial 
t for additional stations to default.
Dial 
?k f for configuration mode.