Comdial Executech II Model 816 Instructions Manual

s Installation IMI 66-031 
’ L 
f- 
CONNECTIONS 
Connection between the KSU and the TELCO or PABX line is via four-wire 
cable and modular plug/jack connection. The maximum length of a line 
c 
cable is determined by the limitations detailed above. 
A-Lead Control 
The KSU inputs of TELCO lines 
7 and 8 are configured to detect an 
A-lead (A and Al) control signal when it is applied at the modular 
line jack of the KSU. When the KSU detects an A-lead control signal 
on line 
7 or 8, it causes a busy line...

Installation 
_ 
IMI 66-031 
The polarity between the individual wires in a particular 
voice or data pair is not critical; however, do not connect 
the voice circuits to the data circuits: To do SOI will 
make a station inoperative as well as the adjacent odd or 
even station. 
3. 
After making the wiring connections discussed above and 
illustrated in Figures 2 through 5, double check all connections 
and cable routing to insure accuracy. 
When a serial data printer is used for SMDR and COS printout,...

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__-. __-_-~___ 
Installation I IMI 66-031 ’ 
To apply AC power to the KSU, connect the AC power 
grounded, 
three-wire, 117VAC electrical outlet. A cord to a properly 
plug-in, power line 
surge protector should be installed between the KSU power cord and the 
AC outlet. 
Do not connect the AC power cord until the installation has 
been checked per the instructions given later .in this 
chapter. 
It is recommended that a grounding wire, 
separate from the three wire 
AC line cord, be used. 
Some...

Installation 
i. IMI 66-031 .+ 
4 2 
%?Etews e!+w IaLii 
can be programmed to be a PA station port 
; 
e ephone station port (see Chapter 4 for programming 
details). 
When this is done, the audio input of a PA amplifier can be 
connected to the audio pair of the station port as illustrated in 
Figure 3. The connection must be isolated with a 600 ohm to 600 ohm 
audio matching transformer. 
Terminate the audio input of the PA 
amplifier with a 620 ohm (nominal value) resistor. 
@-=JQa;M&~~~a~* the Common...

Installation 
IMI 66-031 
An optional station is available which is equipped with a 14 station 
Busy Lamp Field (BLF). 
up to eight BLF stations can be connected to 
the system. 
A BLF station can be connected to any odd or even station 
port in the system per the following guidelines. 
l The installed distance between the KSU and the BLF station must be 
limited to 1000 feet or less. 
OThe data-line paired station port cannot be used as a BLF station 
connection or as a regular station connection....

Installation I IMI 66-031 
l----1 CLIP TERM 
24V@ 0.4A MAX 
VOLTAGE CLAMPING DIODE 
RECOMMENDED 
CONTACT CLOSURE 
Figure 2. External Signalling --Typical Connection 
600-h TO 6OOA (1:l) 
PA SYSTEM 
AUDIO 
I 
TRANSFOF 
TO KSU STATION 111 r 
PORT 23 OR 25 IF 
ENABLE IS REQUIRED : 
OR TO ANY UNUSED . 
STATION PORT IF . AUDIO INPUT 
ENABLE IS 
t 
NOT REQUIRED. ENABLE INPUT 
TO 
KSU EXTERNAL CONTROL CONNECTION POINTS 
ON 66M-XX CONNECTOR BLOCK. 
l CLIPS 45 & 46 FOR STATION PORT 23 PA ENABLE 
l CLIPS 47 8148...

Installation  

IMI 66-031 
Figure 4. System Interconnection-Typical Connections 
27  

Installation 
IMI 66-031 . 
GREEN-WHITE 1 J 1 
3 1 
12 
13 
RED-SLATE 1 
l4 
SLATE-RED 1 
I -_c._.. a” 
E 
. ~~ I 11 
1 1 
VOICE 
1 z I PA’R 1 
I r)c 1 VOICE 
1 PAIR 1 GREEN 21 
r RED 22 
DATA &J 
DATA YELLOW 23 
PAIR 
PAIR 
BLACK 24 
-I 1 VOICE 1 I SEEN 25 I DAIE) I I -j 16 j-1 SPARE I------+ BLACK-BROWN ,4 
BROWN-BLACK 
15 
YELLOW-BLUE 
41 
17 
BLUE-YELLOW I6 1 YELLOW-ORANGE ,~ 1 ’ -I 
,q / “?%tE ( SPARE 1 - GREEN 1  1 RED / ;i ORANGE-YELLOW/ ” 1 , YELLOW-GREEN 
GREEN-YELLOW ‘* 
YELLOW-BROWN 
.n 43 ~...

Installation IMI 66-031 . 
. . 
CHECKOUT 
The system operating features are set to the system default conditions 
at initial power up. These conditions provide a basic operating 
system. 
They can 
be altered as described in the Chapter 4 Class Of 
Service programming discussion; however, the 
system should be 
initially checked out with the default conditions in place. 
The system default conditions are as follows. 
-All lines are DTMF 
-Voice signalling attempted first when intercom call 
is made 
-1...