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

							Introduction IMI 66-037 
speed dial key on the key pad.) If a particular line is not 
programmed for selection as part of the auto or speed dial, the 
prime line (if programmed) will be automatically chosen. If the 
prime line is unavailable or busy, the last line used to 
originate a call will be chosen. 
Other than the prime line or the auto/speed dial line selection, 
automatic preselection of a line is not part of the system. A 
line can be manually selected before lifting the handset (for 
handsfree dialing) or after the handset is lifted. The key pad 
is automatically set for manual dialing when a manual line 
selection is made. 
hanual Hold 
-./--4- -- -.m 
A key activated feature at each station will place a PBX or TELCO 
line on hold and provide music to the held party if an external 
music source is connected to the system. 
Pressing the HOLD key once effects a normal timed hold condition. 
Any station which has access to the line can pick up the held 
call. The normal hold condition will hold a call for a 
programmed length of time. At the end of the first timeout 
period, the line select indicator will flutter rapidly at all 
stations and three quick tone bursts will sound at the holding 
station. At the end of each subsequent timeout period, the 
holding station receives an additional three quick tone bursts. 
Each station provides programmable memory dialing features 
available in a 14-key configuration. These memory keys can he 
programmed to store numbers for automatic dialing purposes. The 
stored numbers can he up to 15-digits in length and can include 
line or intercom selection, numbers, fs, *, pauses, and flash 
signals. A pause is stored each time the HOLD key is pressed, 
and a flash signal is stored each time the RECALL key is pressed. 
The pause and flash intervals are programmable. Alternately, 
memory location 14 can provide automatic, repetitive dialing of 
the last number dialed if a memory number is not stored at that 
location. I 
Each station can be programmed to provide 10 speed dial numbers 
at the keypad keys. Speed dial numbers can be up to 15-digits in 
length and also can include line or intercom selection, numbers, 
#s, s, pauses, and flashes. In addition to the station speed 
dial numbers, 10 system-wide speed dial numbers are available at 
the keypad keys. The system speed dial numbers can be up to 31 
digits in length, and can include the same information as 
described above. System speed dial programming can only be done 
at station 10.  
						

							Introduction IMI 66-037 
!$&.a, Station s&ac.i.ti.es 
i-ri-- - - ---.viw.- 
The system will support a mixture of 3-line and S-line telephone 
stations. These stations can he standard stations or optional 
speakerphones. 
Modu.lar liriring a.nd .Ja.cks/.?-Conduc.to.r wi;e Sy.z.s.$c 
--mati---- --m-S --- ---------------sm 
. 
The system can be completely interconnected by employing industry 
standard 50-pin connectors and modular plug/jack combinations. 
Station wiring is small, 4-conductor, twisted-pair cable 
throughout the 
sytem. 
Momentary ,z_exs wi_tQ LED Indicators 
--ls- s- -. iv- -..,ii - ss- i- 
The station keys are momentary contact, press and release types. 
They provide line selection, call monitoring, and other feature 
selection. Visual indication of the feature selection is 
provided by built-in light emitting diodes (LEnsI. 
Multiline Conferencinq 
i‘--v - -i - -- 
.a--i-- ----i- 
This system feature will allow one or more stations to access two 
outside lines at the same time resulting in a multipath 
conversation. The voice reception at the distant parties 
stations is d.ependent upon the quality of the outside lines. If 
more than one internal station is added to the conference, the 
voice levels will be lower than when a single internal station iS 
involved. 
Elusic-On-.Ho.ld~Mu.s.i.c .In.t.erf.a.ce (.E.xtern.al Source). 
----m--m--s-- ----- --------- c - m - - - - - - m - i ii i: 
A jack is provided on the KSU for the connection of a KX 
registered music source. This music source places music on TELCO 
and PRX lines that are placed on hold. 
Mute 
BS& 4 
Each station has a feature key which will mute the handset 
transmitter or internal microphone (on speakerphones) to prohibit 
the users voic,e from being heard by 
the distant party. 
The night transfer mode 
automatically transfers the ringing of 
all incoming calls to a particular station or stations for 
off-hour or special purpose answering. The night transfer mode 
can only be made active from station 10. 
10  
						

							Introduction IMI 66-037 
A system can be programmed to be a square system or a non-square 
system as desired. In a square system, the line 1 select key of 
the telephone station selects line 1, the line 2 key selects line 
2, etc. In a non-square system, each line select key selects the 
available line specified by COS programming. 
In tenant service, 
the non-square system provides all sharing users with the use -of 
the same line select keys while enabling these keys to select 
different assigned lines. 
Every station can provide on-hook manual and automatic dialing. 
An internal speaker monitors the placed call for completion. The 
handset must be taken off-hook to provide the voice link on 
nonspeakerphone stations. 
.g_r.&b-mt.ir?q .@I;.$$. 
..-m-m’- 
The ability to originate calls on certain available lines can be 
denied at certain stations through system programming. The 
originating denied feature is programmed on a per station/per 
line basis. Originating denied does not prevent a user from 
answering a ringing line. 
PBX/Centrex/,Central gE.fic.e, Comeatib.le 
i i .-. _ .- i.i.i~ -..- _ _ _ ,- .- ,- .~ _ 
M-44 -m---s 
The system features and programmable options are compatible with 
the requirements of PBX, CENTREX, 
and Central Office operation. 
Numbers, #Is, *Is, and programmable pauses can be made a part of 
every stored number for automatic and speed dial. 
Additionally, 
a custom calling features access/dial tone recall feature is 
available to provide a programmable time interval flash signal 
for custom calling features access or a line disconnect for dial 
tone recall. The station hookswitch also provides a line 
disconnect when it is actuated. This feature will provide dial 
tone recall on stations with a programmed prime line. 
A special voice pair is available for connecting a non-electronic 
telephone such as an industry standard model 2500. This voice 
pair is automatically connected directly to line 1 whenever there 
is an AC power failure. Call out and incoming ringing on this 
power failure station is possible during the power failure 
condition. The power failure station will automatically 
disconnect as soon as power is restored. 
The KSU has a red LED which provides an AC power on indication 
and monitors the status of the system. 
11  
						

							Introduction IMI 66-037 
g:Jge Line 
-4-S 
Refer to the discussion titled, 
Line Preselect ion ,C?r.im.e .I;1.~.~& 
i-i- ii.-- - -i - - - - - ------ 
E&esy Rekase 
---v--- 
When the automatic privacy feature is active, all other stations 
are excluded from joining a station on an active line unless that 
station allows it. The privacy release feature allows a station 
user to release automatic privacy so that other stations can be 
added to an active call. 
n2g.r ammable .Kg.ys_ 
m-3----- 
Refer to the discussion titled, 
Memory D,ialiqg Features. 
- - i - -4. - - m m - - c t -- - s b-ii 
g&ggr ammed Di.r.ec.t 
-i’-iY- - - - - s - Station 5e;l.e.c.t. (D.S.S.), 
-‘-i-i- M 9 -----i t--w. 
A station user can store an intercom line selection and a station 
number at a memory key location to create a DSS memory key. When 
this key is pressed, an active outside call is automatically 
placed on hold and a voice signalled intercom call is 
automatically made to that previously stored station number. 
.&~.. 9y.s Directory 
- .m i - i - 6.4 
Each station is equipped with a pull out directory. 
This 
directory can be used for recording the system speed dial and 
station speed dial numbers. 
PulselTone Switchable. 
ii -. .--.& i.~.~.-~.- .- .* _ i _ .- .- .- -..- 
The system can be programmed on a per line basis to allow the 
stations to switch from pulse to DTMF tone dialing as needed. 
Alternately, the system can be programmed to only allow DTMF tone 
dialing. 
I&.g.J.~.g Line .P.re.ference 
--mm ..-m.------i 
The system can be programmed on a per station basis to enable 
ringing line preference. When ringing line preference is enabled 
at a station, taking it off-hook will automatically connect it to 
an outside line which has audible ringing. A line select key will 
not have to be pressed. 
This feature enables a key action to save the last number 
manually dialed from the keypad. The same key action will redial 
the saved number when it is pressed at a later time. 
The saved 
number is permanently available for later use until it is 
replaced with a new number. 
12  
						

							Introduction IMI 66-037 
s,e.J.f .~~.gmxt its 
- - - - i:’ - 
Each station can execute a self test when so enabled. 
The optional speakerphone provides operation of all features 
except voice signalled intercom calls with the handset on-hook. 
The handset must be lifted for this one purpose. 
Refer to the discussion titled, Memory ,Dialing Fe.atures 
u - - - - - ii - - ,~;-ii-~l 
~&.Q f!Q.ia, .ZE,.C 1.L 
The system programming selects the timeout period for a call on 
hold. When a held call exceeds the timeout period, the system 
audibly signals the condition to the station that placed the call 
on hold. It also visually signals all other stations. The 
audible signal is repeated at the end of each time out period. 
The visual indication continues until the held call is picked up. 
Toll Restriction - 0 and 1 
- - i- 4 
----mu..----- - - B-i i (Model 616 KSU) 
System programming can be configured to prohibit some or all 
stations from calling, on certain lines, any number prefixed with 
a 1 or a 0. 
The feature works as follows: Each line can be 
programmed to be either a restricted or a non-restricted TELCO or 
PBX line. 
Each station can he programmed so that it cannot dial 
a 1, a 0, or both on any restricted line. This programming does 
not prevent that station from dialing 1 and/or 0 on a 
non-restricted line. Numbers such as l-800-xxx-xxxx are not 
restricted in any manner. 
When the station is restricted from 
dialing 1, 
it is also restricted from dialing 411 on a TELCO line 
or PBX line. On PBX lines, the 1 and 0 dialing restriction is 
activated after the single digit access code has been dialed. 
Dialing a restricted number on a restricted line will cause the 
line to be automatically disconnected for 2 seconds. 
Toll Restriction - Exg,anded 
- - s 4 - .w-m - -ii im- i (Model 616B KSU) 
- - -*-i - - 
System toll call restriction can be configured, by Class Of 
Service programming, to prohibit some or all stations from 
calling a wide range of number combinations. The restricted 
numbers are specified on programmable restricted number tables 
which are assigned on a per station and per line basis. 
In general, toll restriction works as follows: The programmable 
tables of restricted numbers contain entries of up to 16 digits 
each. Each table of restricted numbers can be programmed to be 
an allowt 
table or a deny table. Entries in an allow table 
override entries in a deny table. This feature allows, 
exceptions to toll restriction to be enabled. For example, the 
13  
						

							Introduction 
IMI 66-037 
dialing of all l-xxx-xxx-xxxx numbers can be denied while the 
dialing of l-800-xxx-xxxx numbers is enabled. A match anything 
symbol (#) can be stored to represent any digit from 1 to 0. The 
programmed toll restriction tables are individually assigned to 
each station and line through COS programming. 
When a line selection is made and a station is dialed, the system 
examines the dialed number and makes a comparison between the - 
station toll restriction tables and the line toll restriction 
tables. Any tables assigned to BOTH the station being used and 
the selected line determine the toll restrictions to be imposed. 
Dialing a restricted number on a restricted line from a 
restricted station will cause the line to be automatically 
disconnected for 2 seconds. 
.~_o,nf ,o; Vo.ice ~&nal.ling (.I.nt.ercom) 
----w ---r--i 
- - -i imi is.. 
The intercom feature links the stations of the system together. 
Three intercom paths are available on the Model 616B KSU, and two 
paths are available on the Model 616 KSU. 
Intercom calls can be 
tone signalled or voice announced as desired, and can be 
responded to in a handsfree manner. 
Intercom call progress is 
marked by special tone signals. A visual indication is presented 
when all of the paths are busy. 
A special adapter is available which will allow a station to be 
mounted on a wall. 
Refer to the discussion titled, 
Station z.Qe.a.kers)-.. All.%.a.ll .;a~$ z.g$.s p~.$$$!.g .(.Yia 
i-.m----- 
-w-s 
.-. .&. .- .-. .-. .-. .- 
i - -- - i v. - - 
SPECIFICATIONS 
The general specifications of the 
Model 616B and 616 electronic 
key system are shown in Table 1. 
14  
						

							Introduction IMI 66-037 
Table 1. General Specifications 
System Capacity - 
Co Lines 
Stations 
Intercom Links 
Paging Link 6 
16 
2 (616) 
3 (616B) 
1 (616B) 
Power Dissipation - 
KSU and power supply @ 117VAC nominal, 
fully loaded system 55 watts 
Dimensions and Weights - 
KSU width (inches) 
height 
depth 
u KSU pounds 
Keyset footprint (inches) 
Keyset pounds (lb-oz) 
Cable Requirements - 
Station cable, 2-pair twisted, non-shielded 24AWG 
Maximum cable length 1500 feet 
A-Lead Control Loop Limits 
Maximum Resistance of 1500 Ohms 15% 
24 
3% 
22 
7%x8% 
2-10 
Power Requirements - 
KSU and power supply 
Input: 117 VAC f 10% 0.4 AMPS, 60 Hz, single phase 
Switching Principle - 
Solid state, space division, analog switching with stored program control. 
Operating Environment - 
Temperature: 32-120°F (O”-49°C) 
Humidity 90% relative, noncondensing 
Industry/Regulatory Standards - 
FCC certified, part 15a 
FCC registered, part 68 
UL Listed (in process) 
EIA RS478, Bell Pub 48002 guidance 
Hearing aid compatible 
Termination for Outside Lines - 
Individual, 623 - type, four-conductor minijacks: USOC’s RJlIC (or RJl2C with A/Al leads 
for lines 5 or 6). 
Termination for Stations - 
25-pair connector for connection to external distribution field. 
Central Office Limits - 
Maximum 1900 OHMS loop, minimum 15,000 OHMS cable insulation leakage. 
CO/PBX Line Ringer Equivalence Number - 
REN 0.38 
FCC Registriation Number - 
CVW7WC-12829-KF-E 
Printer Port (Model 616B KSU Only) 
Format: Serial, pseudo RS-232C (transmit only) 
Parity: None 
Data Bits: 7 
Stop Bits: 2 
Baud Rate: 300/l 10 COS programmable 
Handshaking Requirements: CTS (if available) from printer to KSU 
RTS (if needed) from KSU to printer 
Printer Cable Length: 50 feet maximum from KSU to printer 
15  
						

							Introduction 
SECTION 2 IMI 66-037 
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 KSLJ 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 the telephone operating company provides and installs the 
system, the telephone operating company must be notified before a 
connection is made. The lines (telephone numbers) involved, the 
FCC registration number, and the ringer equivalence 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 KSU. 
The user 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 your 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 universal service order code (USOC) outlet jacks 
supplied by the telephone operating company. 
If the installation 
site does not have the proper outlets, ask the telephone company 
business office to install new outlets or adapters for the 
present ones. The correct outlet jacks for this system are type 
RJllC or RJ12C jacks. 
16  
						

							Introduction IMI 66-037 
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 if 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 faulty 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 to discontinue 
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 or their authorized agent and by 
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 both of the following measures: Reorient the television or 
radios receiving antenna. 
Relocate the KSU, the individual 
telephone stations, and the radio or TV with respect to each other. 
17  
						

							Introduction IMI 66-037 
If necessary, 
the user should consult the manufacturer or an 
experienced radio/television technician for additional 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 Office, Washington D.C. 
20402. stock No. 
004-000-00345-4. 
RINGER EQUIVALENCE NUMBER 
The REN of each line of the KSU is 0.3B. 
The FCC requires the 
installer to determine the total REN for each line, and record it at 
the equipment. 
18