Comdial Executech II Model 816 Instructions Manual

							Introduction 
IMI 66-031 ’ 
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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. 
Bach 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. 
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 key before pressing the speed dial key on the key pad.1 
If a particular line is not programmed for selection as part of the 
auto or speed dial, the prime line (if programmed) will be 
.._J 
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. 
A key activated feature at each station will place a PBX or TELCO line 
on hold and provide music-on-hold to the held party if that capability 
is available. 
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. 
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							IMI 66-031 ‘ IMI 66-031 ‘. 
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mbsf(eus,SneedDialL .- _ 
lrammable.memory dialing features available 
These memory keys can be programmed to 
.c dialing purposes. The stored numbers can 
lth and can include line or intercom 
, pauses, and flash signals. A pause is 
key is pressed, 
and a flash signal is stored 
.s pressed. The pause and flash intervals 
,tely, 
memory location 14 can provide 
.ing of the last number dialed if a memory 
tat location. ghen it is actuated. Th 
Itions with a programmed 
sting a non-electronic 
. 2500. This voice pair 
thenever there is an AC 
lg on this power failure 
condition. 
The power 
:t as soon as power is is iS 
lmmed to provide 10 speed dial numbers at the ’ 
.umbers can be up to 150digits in length and 
ntercom selection, numbers, QS, *s, 
ddition to the station speed dial numbers, 
numbers are available at the keypad keys. lower on indication and 
ers can be up to 31 digits in length, and 
,mation as described above. %ystem speed 
be done at station 10. 
mixture of 3-line and 8-line telephone 
can be standard, handsfree stations or full 
I all other stations are 
line unless that station 
ws a station user to 
ions can be added to an 
ly interconnected by employing industry 
and modular plug/jack combinations. 
-conductor, 
twisted-pair cable throughout 
tary contact, press and release types. 
11 monitoring, They 
and other feature selection. 
eature selection is provided by built-in 
s) 
l 
lection and a station 
DSS memory key. 
When this 
tomatically placed on hold 
atically made to that 
llow one or more stations to access two 
time resulting in a multipath conversation. 
distant parties 
stations is dependent upon 
lines. If more than one internal station 
8 the voice levels may be lower than when a 
involved. 
I 
xtory. 
This director 
ial and station speed 
3 ial 
4sis to allow the stations 
needed. 
Alternately, the 
I 
:one dialing. 
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							Introduction 
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IMI 66-031 s 
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The system can be programmed on a per station basis to enable 
line preference. 
station, When ringing line preference is enabled at a ringing 
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 manual1 
dialed from the keypad. The same key action will redial the save 8 
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. 
Each station can execute a self test when so enabled. 
The optional speakerphone provides full handset free operation of all 
features except voice signalled intercom calls. The handset must be 
used for this purpose. 
Refer to the discussion titled, &JJQ~ U&,&Q Em 
The SMDR feature allows a record of calls to be kept for each Station 
in the system. Call record data may be received and printed by any 
RS-232 compatible, 
110/300 baud. serial printer which is capable of operating at 
This feature records the number of the TELCO line used 
and the digits dialed (up to 32 including up to 8 ts and *s for 
billing code information). 
These records are kept for all incoming 
and outgoing calls greater than 20 seconds in length. In addition, on 
incoming calls, 
the answer time (in tenths of a minute) for a ringing 
line is kept. The call record is presented at an RS-232 level as 
ASCII transmit data on terminals at the station connector block. 
The 
call record is presented as it is taken. No mass storage of data is 
maintained for later recall. 
Communications are one-way to the 
printer only. 
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 I._ 
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. 
12  
						

							, 
Introduction 
IMI 66-031 
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 
programmable restricted number tables which are assigned on a per 
station and per line basis. on 
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 allowN table 
or a deny table with entries in an allow table overriding entries 
: 
in a deny table. 
This feature allows exceptions to toll restriction .-. 
to be enabled. For example, the dialing of all 1-xxx-xxx-xxxx numbers 
can be denied while the dialing of l-8000xxx-xxxx numbers is enabled. 
A match anything 
from 1 to 0. symbol (t) can be stored to represent any digit 
The programmed toll restriction tables are individually 
assigned to each station and line. 
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. 
The intercom feature links the stations of the system together. 
Four 
intercon paths are available on the Model 816 system. 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. 
zWU&&s 
Refer to the 
snaaw discussion titled, m &j &g &Q&J &T& &J&&Q 
SPECIFICATIONS 
The general specifications of the 
shown in Table 1 Model 816 electronic key system are 
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							Introduction 
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IMI 66-031 , 
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System - 
Table 1. General Specifications 7) 
Model 
818 
System Capaclty - 
Co Lines 
Stations 
Intercom Links 
Paging Link 8 
18 
3 
1 
Power Dissipation - 
KSU and power supply @ 117VAC nominal, 
fully loaded system 
Dimensions and Welghts - 
KSU width (inches) 
height 
depth 
KSU pounds 
Keyset footprint (inches) 
Keyset pounds (lb-ot) 
55 watts 
15x! 
E 
23 
7%x8% 
2-10 
. . --) 
Cable Requirements - 
Station cable, P-pair twisted, non-shielded 24AWG 
Maximum cable length 1500 feet 
A-Lead Control 
Loop Limits Maximum Resistance of 1500 Ohms 
Power Requlrements - 
KSU and power supply 
Input: 117 VAC + 10% 0.4 AMPS, 80H2, single phase 
Switching Principle - 
Solid state space division analog switching with stored program control. 
Operating Environment - 
Temperature: 32-120” F (O”-43.3”C) 
Humidity 90% relative, noncondensing 
Industry/Regulatory Standards - 
FCC certified, part 15a 
FCC registered, part 88 
UL Listed (in process) 
EIA RS478, Bell Pub 48002 guidance 
Hearing aid compatible 
Termlnatlon 
for Outside Llnes - Individual 623 -type four-conductor minijacks; USOC’s RJll C (or RJlPC with A/Al leads 
for lines 7 or 8). 
Termination for Stations - 
25pair 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 0.3B 
FCC 
Reglstratlon Number - 
CVW7WC-12829-KF-E 
Station Message Detail Recording (SMDR) Port - 
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 
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							Introduction 
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IMI 66-031 
SECTION 2 
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 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 effect 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. 
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							Introduction 
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IMI 66-031 ; 
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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 b 
X 
anyone except the manufacturer or their authorized agent and by ot ers 
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 radio 
receiving antenna. Relocate the KSU, 
the individual telephone 
stations, and the radio or TV with respect to each other. 
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							Introduction IMI 66-031 
r . 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 0.3s. The FCC requires the 
installer to determine the total REN for each line, and record it at 
the equipment. 
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							Installation 
IMI 66-031 . 
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CHAPTER 2 
INSTALLATION 
MOUNTING CONSIDERATIONS 
0 
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c- 
1. 
2. 
3. The KSU cabinet should be attached vertically to any sturdy, flat, 
surface. It may be vertically rack mounted if desired. It must be 
located within 6 feet of a properly grounded, three-wire, 117VAC, 
electrical outlet. The distance between the KSU and the TELCO/PBX 
jacks must be 25 feet or less as per FCC requirements. A nominal 
distance of 7 feet is recommended. 
Choose a secure, dry mounting location with adequate ventilation. 
The temperature range of the location must be within 32-120 degrees 
F (O-49 degrees C). 
If the mounting surface is damp or if it is 
concrete or masonry material, a backboard must be attached to the 
mounting surface to be used for KSU mounting. 
Suitable mounting 
backboards are available commercially or can be constructed out of 
l/2-inch plywood cut to size. 
Tools and hardware required for mounting the 
KSU cabinet include: 
l/4 x l-inch round head wood screws, toggle bolts, or wall anchors 
and fasteners; a screwdriver; 
an electric drill if prepared holes 
are required; and a connecting tool for fastening wires to a type-66 
connector block. 
A full scale mounting template 
is supplied in the 
KSU packing box. 
Holdor tape this template to the mounting surface, and mark the 
location of the mounting holes on the mounting surface as they are 
located on the template. The 
KSU mounting dimensions are as shown 
on Figure 1. 
Drill holes in the mounting surface of a proper size to 
accommodate the hardware being used. If necessary, prepare these 
holes with inserts, 
anchors or other attachment devices as 
dictated by the type of mounting surface. 
Attach the KSU to the mounting surface with four (4) screws 
installed through the 
KSU mounting flange and into the mounting 
surface holes. 
Note that the flange holes are elongated with an 
enlargement at one end of the hole. This feature allows the 
mounting screws to be partially installed in the mounting surface 
before the 
KSU is hung on them. 
19  
						

							Installation 
19.25 INCHES 
hNElEr----i 
o- 
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Figure  1. 
KSU Mounting 
W&&Wi%&&&Qtina  Place  the  individual  telephone  stations  as accepted  industry  and office  standards. 
. 
IMI  66-031  ; 
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Dimensions 
desired  and  in keeping  with 
A station  can  be wall  mounted  if necessary.  Use  a wall  mounting 
bracket  (part number  701032-056)  for this  purpose. 
CABLE  ROUTING 
Cable  may  be  routed  concealed  or  visible  as  the  installation  location  requires.  Good  engineering  practices  must  be  observed  and  all 
applicable  building  codes  must  be  adhered  to. 
l 
a 
The maximum  distance  allowed  from  the  KSU  to  the station  is 1500 
feet using  t24 gauge,  twisted-pair  cable. 
The  allowed  tip/ring  loop  resistance  is 1900 ohms  from  the  jack to 
the TELCO/PABX  equipment. 
20