Comdial Executech II Model 816 Instructions Manual

							 COMDIAL
Executech II
                          • Installation
                          • Maintenance
                          • Programming 
						

							-I 
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INSTALLATION AND MAINTENANCE INFORMATION 
FOR THE MODEL 616 
ELECTRONtC KEY SYSTEM 
SERIAL NUMBER 
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. . . 111 
1311 66-Q31 
July, 1986 
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							Table Of Contents 
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IMI 66-031 ;‘ 
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TABLE OF CONTENTS 
CHAPTER 
1 INTRODUCTION 
. . ..*.................................. 1 
SECTION 1 GENERAL INFORMATION ............................. 1 
MANUAL SCOPE 
........................................... 
GENERAL DESCRIPTION .................................... : 
KEY SYSTEM FEATURES 
.................................... 
SPECIFICATIONS 
........................................ 
SECTION 
2 INSTALLER/USER INFORMATION REGARDING FCC 
RULES AND REGULATIONS . . . . . . . . ..A............... 15 
CHAPTER 2 INSTALLATION 
...................................... 
MOUNTING.CONSIDERATIONS ............................... 11% 
CABLE ROUTING 
......................................... 
20 
CONNECTIONS ........................................... 21 
CHECKOUT 
.............................................. 
29 
SYSTEM CLOCK INFORMATION .............................. 31 
*. 
CHAPTER 3 OPERATION 
......................................... 
33 
BASIC OPERATION .......................................... 34 
FEATURES OPERATION 
....................................... 
38 
OPTIONAL FEATURES OPERATION .............................. 46 
STATION OPERATING CONDITIONS 
............................. 
48 
SMDR AND COS PRINTOUT .................................... 50 
CHAPTER 4 SYSTEM PROGRAMMING 
................................ 
53 
GENERAL INFORMATION ................................... 53 
BASE LEVEL PROGRAMMING ENTRY 
.......................... 
53 
SYSTEM COS ............................................ 54 
LINE COS 
.............................................. 
59 
STATION COS ........................................... 61 
CHAPTER 5 MAINTENANCE 
. . . ..*......a........................... 
71 
SECTION 1 TECHNICAL ASSISTANCE AND REPAIR SERVICE........7 1 
SECTION 2 TROUBLESHOOTING 
................................ 
71 
CHAPTER 6 REPLACEMENT PARTS . . . . . . . . . ..a..................... 76 
PUBLICATION INDEX 
. . . . . . ..***.......*...........*............ 
77 
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							. 
Introduction IMI 66-031 
CHAPTER 1 
INTRODUCTION 
SECTION 1 
GENERAL INFORMATION 
MANUAL SCOPE 
This publication contains installation and maintenance information for 
the Model 816 electronic key system and associated electronic key 
telephone sets. 
The installation procedures detailed in this manual, for the most 
part, should be performed by a trained technician. The following 
service items may, however, 
be performed by any user at his or her 
discretion. All other servicing must be performed by factory 
authorized personnel. 
Place or replace any designation strips on the face of the 
telephone. 
Replace the telephone line or handset coiled cord. 
Replace telephones and handsets. The handset is a special type. 
Other handset types will not work properly. 
Relocate the telephone when it is plugged into the proper system 
jacks. 
RELATED INFORMATION 
l IMI 01-001 Compliance Requirements To FCC Rules and Regulations Part 
68 and 15 
l IMI 01-005 Handling Of Electrostatically Sensitive Components 
l Users Guide (supplied with the stations) 
GENERAL DESCRIPTION 
The Model 816 electronic key system consists of an electronic Key 
i Service Unit (KSU), dedicated electronic key system telephone sets 
(stations), and interconnecting wiring consisting of small, 4-wire, 
twisted-pair cable. 
This electronic key system is designed to not only provide the economy 
and features of a conventional lA2 type system but also a much 
easier installation made possible with small size wiring. 
Advanced 
operating features are made possible by the electronic technology used 
in the KSU and the dedicated key system telephone set. 
: ; ;c The system is 
equipped for a maximum of 8 lines and 16 stations. 
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IMI 66-031 : 
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Introduction 
The KSU is a fully electronic key service unit. 
It is essentially a 
special purpose computer system acting as a communications controller 
between TELCO or PABX supplied lines and propriatery 3-line and 8-line 
telephone stations. 
The KSU is contained in a functional, modern-style metal housing of 
contemporary design in keeping with the needs-of the modern offlce 
enviroment. 
.It is engineered to be wall or rack mounted. 
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The telephone set is an electronic, 
microprocessor-controlled device. 
It is desi 
7 ned to allow not only multiline pickup but also single key 
access to 
eatures available from the serving TELCO or PABX switch. 
All stations are equipped with standard modular jacks. 
The telephone sets are available in 3-line (S-button) and 8-line 
(lo-button) handsfree dialing models: 3-line and 8-line full 
speakerphone models; and an B-line, 
handsfree dialing model with a 
busy lamp field. _. 
KEY SYSTEM 
FEATURES , * -. 
The 
electronic key telephone system provides a broad range of 
features. Some of the features are a permanent part of the system 
while others are programmable as part of the system or station 
F rogramming procedure. The following paragraphs describe the 
eatures. 
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Access to particular lines can be denied to certain stations in the 
system through system programming. This access denied feature is 
programmable on a per line/per station basis. 
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This system feature allows the stations, 
while operating in a private 
mode, to add another station to an existing call or to a.multiline 
call. 
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All-call and zone paging allows the system stations to be used to 
receive or originate one-way messages in order to find, notify, or 
-~ 
summon someone.. A station can be enabled by-programming to receive 
all-call and zone paging messages through the station speaker, and to 
originate them using the station handset. 
A station can be programmed 
. 
to only 
receive messages‘or programmed to orignate messages as well. 
The programming can enable zone paging in up to four different zones 
or system-wide, all-call paging. Each station can be programmed 
to be 
in any or all zones for both receiving and originating messages. The 
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							Introduction 
IMI 66-031 , 
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c system defaults to system-wide, all-call paging in zone D with all 
stations having both receive and originate capability. 
A station port can be programmed to interface with an external paging 
amplifier. 
It can be dial accessed from the other stations in the 
system. 
A line port can also 
be programmed to interface with an 
external paging amplifier. 
This paging amplifier can be accessed from 
the stations in the system with the line select key. DTMF tones can 
be dialed through the line paging port to provide zone selection if 
dialed zone selection is available at the external paging amplifier. 
If an on-hold party hangs up at the TELCO/PBX end of the 
communications link, causing an interruption in the tip/ring line 
current, 
the system will drop the line off of the hold condition and 
return it for service. The line select indicator will turn off to 
indicate an idle line condition. 
If the intercom line is selected while an outside line call is active, 
this system feature will cause the outside call to be automatically 
placed on hold. 
A system feature provides automatic privacy on all lines at every 
station. Automatic privacy prevents other stations from joining a 
station on an active line unless that station user allows it. 
Through 
programming, the system can be configured so that certain lines are 
. 
normally non-private. 
When the non-private line is in use at a 
particular station, users of other stations in the system can join 
that station user on the non-private line. 
This can be accomplished 
by pressing that line select key on their station. 
An automatic redial of the last dialed number is available at every 
station. 
A busy number or unanswered call is automatically redialed 
by this feature. 
Once automatic redial is selected, the station will 
select a line, automatically dial a number, and wait for a response. 
It will do this once a minute for 10 minutes. 
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Introduction 
IMI 66-031 , 
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The user must lift the handset to complete the call voice link. 
f Lifting the handset or pressing any other key will cancel further 
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automatic redial action. Users of the optional speakerphone station 
can complete the call voice link by pressing the MONITOR OFF key 
instead of lifting the handset. 
The system will detect an A-lead contact closure on certain incoming 
lines. When the system detects an A-lead contact Closure by an 
external device connected to one of these lines, it causes a busy line 
light indication for this line to appear at all the stations in the 
system. 
This A-lead contact closure provides detection only. 
The 
system does not send any A-lead signal to the external device 
connected to the line. 
Pressing the line select key on a system 
station cannot interrupt the external A-lead device unless the line is 
programmed to be non-private. 
Refer to the discussion titled 
2&J&Q&& G&&!J@?~&UU~&~ 
The system provides basic, lA2 type features. 
Features such as 
selective line pickup, common line, hold, and multiline pickup and 
hold are available at every station. -4 
The system programming is electronically protected by a super-cap 
device during an AC power failure. The stored program data will 
remain in memory for a minimum of W-*:hours after AC power fails or is 
disconnected, Some key system models include a system clock. On 
those models, 
the system clock will continue to run and keep time for 
at least 30 minutes after an AC power failure or disconnect. 
: 
; There is an optionally available 8-line telephone station equipped 
with 14 visual indicators adjacent to the memory keys. This station 
provides all of the available features in addition to a Busy Lamp 
Field (BLF) display. The visual indicators of this station display 
the status of the Direct Station Selection (DSS) intercom stations 
provided by the system at the key locations.  
						

							Introduction 
IMI 66-031 
The internal speaker at each station provides call-announce capability 
over the intercom link. 
A handsfree response to a call-announce call 
can be made. 
the handset. This response is transmitted by the microphone built into 
Call transfer allows incoming calls to be transferred from one station 
to another, 
via the intercom link, in one of two ways. If both 
stations have access to the incoming line, a common line pickup 
transfer can be effected. If the other station does not have access 
to the incoming line, 
transfer can still take place using the system 
transfer feature. Some transfer considerations are as follows: 
If a 
transfer is attempted when there is no call on hold, the station being 
transferred to will receive the intercom dial tone, and the 
transferring station will be dropped from the intercom line. 
If a 
transfer is attempted and the station being transferred to does not 
answer the intercom call, 
the call. the transferring station will reconnect to 
Contact points are available which provide relay contact closures 
c whenever an incoming line rings and whenever station 17 rings. 
The 
contact closures track the ringing pattern and can be used to control 
an external signalling device. When certain station ports are 
prrogrammed to function as PA ports, 
these contact closures become 
enable contacts. They close when the PA port is called and can be 
used to enable an external PA system. 
~11 class of service (COS) programming is performed from station 100 
COS programming is used by the installer to configure and maintain the 
system, line, and station operating conditions. 
Class of service and toll restriction records can be received and 
printed by any RS-232 compatible serial printer which is capable of 
operating at 110/300 baud. 
At initial power up of the system, 
the operating features are set to a 
specific group of operating conditions (default conditions). The 
default conditions provide a complete operating system for use. It 
can be left as a defaulted system or reprogrammed as desired. Default 
conditions can be restored, if desired, by programming action. 
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							Introduction 
IMI 66-031 
W.nsQ~&L~~ _ ._ 
The system attendant station (station 10) can be called whenever the 0 
key is dialed on the intercom line. 
The ringing pattern of an incoming call follows the ringing pattern of 
fhe TELCO or PBX system. The ringing pattern of a tone signalled 
intercom call presents two tone bursts sounded every 4 seconds. A 
voice signalled intercom sounds two tone bursts one time. 
Any station can be set to a do-not-disturb mode with the MONITOR. 
key. While in this mode, the station will not ring on any incoming 
call nor will it accept an intercom call. 
The DSS/BLF Console is an optional console device designed to be a 
companion to a regular system station. It is useful with high call 
volume systems which require a dedicated call transfer location. 
The 
console provides 24ikey direct station selection (DSS) intercom and an 
associated busy lamp field (BLF). 
It also provides one-key access to 
system-wide! all-call paging. The console is designed to be connected 
to any station port and serve as a companion to the station connected 
to the adjacent data-line paired port. Installation of this option to 
a system does not affect any features currently available to the 
companion station. 
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A faceplate mounted volume control on each station can be adjusted to 
set the audio level of the call announce speaker output, A bottom 
mounted volume control on each station can be adjusted to set the 
audio level of the tone ringer. 
The system can accept DTMF tones from a station, send them through the 
TELCO network, and hav.e them received at the distant end for inward 
call completion at the distant system. 
This conventional, off-hook 
dialing mode can be performed from every station in the system. 
Pressing the HOLD key twice, 
when placing a call on hold, effects an 
exclusive hold. condition. Exclusive hold links the held call to the 
timed hold recall timeout feature. 
Exclusive hold prohibits the held 
call from being picked up at any other station during the programmed 
timeout period. 
After timeout, 
audible and visual signalling will 
occur and the exclusive hold condition will revert to a normal line 
hold condition. 
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Introduction 
d 
Each station 
intercom for comes equipped 
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with a built-in direct station select 
stations 12 through 25. Access to these stations is  IMI-66-031 
’ 
effected by pressing the intercom select key and then pressing one of 
the memory keys. This action completes a voice announced 
intercom 
call to the selected station. Any active outside line is 
automatically placed on hold when the intercom select key is pressed. 
When custom calling features are available via a .flash signal, the 
system can be programmed so that the RECALL key will generate a 
flash signal when it is pressed. When custom calling features are 
not available, the system can be programmed to allow the RECALL key to 
act as a positive disconnect or dial tone recall key. These two 
features are mutually exclusive. The system can be programmed 
to 
provide only one of these features at a time. 
Flexible ringing assignments are programmable on a per line/per 
station basis. 
The system can be configured to provide direct ringing 
for every line at every station; direct ringing for prime line with 
delayed ringing for all other lines; 
and prime line ringing only. 
Ringing can be disabled for each line on an individual basis at each 
station. 
Subdued ringing is automatically provided to any station 
that is busy on an outside line. 
The station handset is compatible with magnetically-coupled hearing 
aids. 
The light associated with the line select keys provide a visual 
indication of the in-use and hold status of each line available for 
use at a particular station. 
Refer to the discussion titled, a a B&S &JJJ&JJ~ J&J&-~,