Comdial Executech Model 616, 616b ELECTRONIC KEY SYSTEM Instructions Manual

							COMDWL 
Executecti 
MODEL 616 AND 616B 
ELECTRONIC KEY SYSTEM 
Committed to U.S. leadership in business communications 
IMI 66-037 
JULY, 1966  
						

							IMI 66-037 
June, 1986 
INSTALLATION AND MAINTENANCE INFORMATION 
FOR THE Model 616 and 616B 
ELECTRONIC KEY SYSTEMS 
SERIAL NUMBER 
_ _ --.. i .w..w..- .ip.+. - i _ i i i.ic .~.i .e..d.dri 
iii  
						

							Introduction 
CHAPTER 1 
INTRODUCTION 
IMI 66-037 
SECTION 1 
GENERAL INFORMATION 
MANUAL SCOPE 
This publication contains installation and maintenance 
information for the Model 616l3 and 616 electronic key systems 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, he performed by any user at his or 
her discretion. All other servicing must be performed by factory 
authorized personnel. 
0 Place or replace any designation strips on the face of the 
telephone. 
l Replace the telephone line or handset coiled cord. 
0 Replace telephones and handsets. The handset is a special 
Comdial type. Other handset types will not work properly. 
0 Relocate the telephone when it is plugged into the proper 
system jacks. 
RELATED INFORMATION 
0 IMI 01-001 Compliance Requirements To FCC Rules and 
Regulations Part 68 and 15 
0 IMI 01-005 Handling Of Electrostatically Sensitive Components 
0 GCA 70-011 Users Guide 
GENERAL DESCRIPTION 
~o~f,~~,uration 
---m-e- 
The Model 616B and 616 electronic key systems consist of an 
electronic Key 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. The system is equipped for a maximum of 6 lines and 16 
stations. 
1  
						

							Introduction 
IMI 66-037 
yo+e,l, Variations 
-------I-- 
The Model 616 key system unit has been produced in two versions. 
The currently produced version is designated as 616B KSU. It is 
an enhanced unit which provides standard key system features, 
adds station pin upward compatibility for growth, and includes 
advanced operating features such as expanded toll restriction and 
class of service printout data. The earlier produced version is 
designated as 616 KSU and is currently available only as a 
service replacement. Specifically, the 616B provides the 
following operation enhancements: serial data printer port for 
class of service printout; all-call and zone paging through all 
system stations; three intercom links; and programmable toll 
restriction tables. 
KSU Descriptipn 
--- ------ ---- 
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 proprietary 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 
office enviroment. It is engineered to be wall or rack mounted. 
Telephone Set Descriptiqn 
---- w--- m-- ---m-m s-s- 
The telephone set is an electronic, 
microprocessor-controlled 
device: It is designed to allow not only multiline pickup but 
also single button access to features 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 8-line, 
handsfree model with a busy 
lamp field. 
KEY SYSTEM FEATJJRES 
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 programming procedure. The following paragraphs describe 
the features. 
Access Denied (Private Lines) 
------- --MN-- ----ova--.- ---we- 
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. 
2  
						

							Introduction IMI 66-037 
e{d_z!?Q Conference LInternalL 
I-s--.s--s- -------- 
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. 
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 originate 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 system defaults 
to system-wide, 
all-call paging in zone D with all stations 
having both receive and originate capability. 
Area ???ginq Inter.face 
						

							Introduction IMI 66-037 
A system feature provides automatic 
privacy on all lines at-every 
station. Automatic privacy prevents other stations from jolnlng 
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 m 
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 approximately 
10 minutes. 
The user must lift the handset to complete the call voice link. 
Lifting the handset or pressing any other key will cancel further 
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. 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 
an external device providing the A-lead closure unless the line 
is programmed to be non-private. 
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.  
						

							Introduction IMI 66-037 
The system programming is electronically protected during an 
AC 
power failure by a battery-like device called a super-cap. The 
stored program data will remain in memory for a minimum of 30 
hours after AC power fails or is disconnected. The system must 
be powered continuously for at least 30 minutes prior to the 
power failure or disconnection for memory preservation to occtir. 
m_s.y $_a~ Field Station :(@pt.ion) 
- - - - i ii - i - - - - 
--W-- 
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. 
Call Announce With Handsfree Answerback 
-..-t -G~--.G--- -i-- --;-i‘-e-~.ei 
--ii - --i-i 
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. This response is transmitted by 
the microphone built into the handset. 
Call Transfer 
- i - - A - - - i - i - 
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 he dropped 
from the intercom line. If a transfer is attempted and the 
station being transferred to does not answer the intercom call, 
the transferring station will reconnect to the call. 
Common Audi,ble and Auxiliary St.ation Interface 
-.i---- ----I-- -c-k mm.----- -w--s--.. .- ~.;.- _ _  _ ^i 
Contact points are available which provide dry relay contact 
closures 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 programmed 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. 
5  
						

							Introduction 
C,la_s_s_ Qff_ Service ?Y.ogr.amminq 
i----m- ---w-- IMI 66-037 
.iFrom Main StationL 
--mm ---- --.s---- 
All class of service (COS) programming is performed from station 
10. COS programming is used by the installer to configure and 
maintain the system, line, and station operating conditions. 
Class Of Se.rv.ice Printout 
m---s -- w-B---- -----i-- (Model 616R KSU) 
Class of service and toll restriction records are made available- 
by the system as serial, ASCII data. It can be received and 
printed by any RS-232 compatible serial printer which is capable 
of operating at 110/300 baud. Communications are one-way to the 
printer only. 
u 
B_f_a,~i,_t Functional Program 
ti--i-4-i-i ke,,;,, 
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. 
.~ia_linq ,,O For Att,end,ant 
-mm - - - m-v: - -i 
The system attendant station (station 10) can be called whenever 
the 0 key is dialed on the intercom line. 
Di.stinctive .~,i,~.~.iis 
i-9 - - -ii --_ - 
The ringing pattern of an incoming call follows the ringing 
pattern of the TELCO or PRXsystem. 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. 
Do 8~; Disturb 
-- ---m-s.- 
Any station can be set to a do-not-disturb mode with the PlOWITOR 
key. While in this mode, the station will not ring on any 
incoming call nor will it accept an intercom call. 
Qss?/g+F_ Console ,l&@b~.l 
- - - - - im 
The DSS/RLF Console is an optional console device designed to be 
a companion to a regular system station. It is useful with high 
Caii volume systems which require a dedicated call transfer 
location. The console provides 24-key direct station selection 
(DSS) intercom and an associated busy lamp field (RLF). 
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. 
6  
						

							3 
Introduction 
I-MI 66-037 
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 
adjusted to set the audio level of the tone ringer. he 
- 
End ;Q End zignal.ling (Qff-?ook Dia1.inq.r 
W-B m i - - - - - - - - - - - - ii-- - - - - - - 
The system can generate DTMF tones from a dialing station, send 
them through the TELCO network, and have 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. 
Exclusive Hold 
._ _ .- ._ .- ,- .-..-. .-. 
ii - i 
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. 
gi&.c3_ @r,eg:.t, Station se_@& .~p~~~ Intercom with Answer Hold 
-ia---- - - -i-is -i - - -ii I, - i- m.s -w . ..i 
Each station comes equipped with a built-in direct station select 
intercom for stations 12 through 25. 
Access to these stations is 
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. 
,E,l.lsQ ,~pe.ratipn/D.ial Tone Recall 
-.-------c--- -i-i -.6---.. 
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.  
						

							Introduction IMI 66-037 
Flexible. Rinq,ing &s_.iqnment.s .lpel_a_yg&, Qis_gQl;e& S~b_&gdl 
*%-r-ii - -- --- - -* S---i- 
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. 
Hearing 512. .Co;patihl,e Handset 
- .-I - w- ---m-9 ---i-b- 
The station handset is compatible with magnetically-coupled 
hearing aids. 
E Pold ,a_na 5 IJ_s;e Indic.a.t.ions 
w-w- - - - .m: - - - i- i 
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. 
Intercom Call Er_o_qr_e_s,s_ Tones 
A - -m -.- w- - - -- mm--- 
Refer to the discussion titled, Tone 0.5 y,oi,e .Si,gna.l.linq 
- - - ... - - - - ii‘ 
(I.nte.rc.om) 
,:,,,,,---L 
Intercom Line .~,i~.$e.~.~. 
-i-----i -i- 
Should the intercom line be selected with no subsequent action 
taking place, the system will timeout the active status and 
return the station to an idle state. 
Last Number. R.ed.ia.1 
- -4 - i - is .s m - -----ms 
Each station is equipped with a last number redial feature. 
This 
feature will save the last number manually dialed from the 
keypad. 
It will redial the saved number upon key command. A 
newly dialed number will automatically replace a currently saved 
number. 
Line .P,resele,ctio,n .(,Pri,m,e .Line) 
-m-m 
--m--i--i--- -ms--- -i--.- 
If a station is programmed to include a prime line, this line 
will be automatically selected for a manual dialing operation 
when the handset is taken off hook. If the prime line is busy, a 
manual line selection must be made. 
Auto dial and speed dial numbers can be programmed to include any 
particular line desired. When this is done, an auto dial or 
speed dial operation automatically selects that line for dialing. 
Should that line be busy, manual line selection must be made. 
(If a line is selected manually for a speed dial call, either 
station or system, press the HOLD/SHIFT key before pressing the 
8