Comdial Unisyn System Manual

IMId&InstaUation
5.
: “1!.... ‘:,“:,::;-,:- :
Insert the two top screws into the mounting surface and
tighten them to within approximately l/&inch of the
surface.
6.Hang the cabinet on the top screws using the mounting
holes located on the rear of the cabinet. Note that these
holes are elongated with an enlargement at one end.
This feature allows the cabinet to slide down on the
screws to secure the mounting when the cabinet is hung
on them.
7.Insert and tighten a third screw through the mounting tab...

InstullationIMI66-112
2I4Connecting The Power2.4. IConnecting AC Power
For a domestic system, use a dedicated 117VAC 15 AMP circuit, with a third-wire ground, supplied to a stand&
electrical outlet (NEMA 5-15R) for the AC power connection.For an international system (-INT), wire power
supply according to input AC voltage (12OV AC / 220V AC).International systems default wired for 22OV AC (see
figure 
2.3.
Be sure to adhere to the following when connecting the power:
qA plug-in power line surge protector...

Ilwtx-112
TO308
TO616Domestic 120 VAC
Installation
,. .:
: .:
,
T0308-INT
T0616-INT
International 120 VAC
Fuse HolderMain PWB
T0308-INT
T0616-INTInternational 220 VAC
Fuse 
Holder
c
I-
-t---IMain PWB
Figure 23 Domestic and International Power Connections
2-5 

InstulktionIMI66-1122.4.2 Connecting A Battery Back-Up
The common equipment provides an interface connector for the connection of an optional external battery assembly.
This assembly is available separately as a kit.
Be sure that the ACpower cord is connected to the electrical outlet before connecting the external battery
assembly to the common equipment interface connector; this ensures that 
internalprotection circuitry is
operating to prevent damage that 
CoUld result from improper connection.
The...

IMI66-112hlStallatiOTl
Before installing a battery backup, check that the following voltage measurements are all accurate:_l
Correct voltage of battery charger circuit without the batteries connected is as follows: between + 13.6V DC
and 
+13.8V DC for the positive battery and between -13.6V DC and -13.8V DC for the negative battery
(contact Comdial if the voltage is higher or lower),l
Nominal voltage of each of the batteries is 12V DC,l
Each fully charged and disconnected battery should not exceed a...

InstallationIM66-112
2.5 Connecting The Lines
Once you have mounted the common equipment, it is time to begin connecting the telephone lines.
Connect the common equipment 
telephone line jacks to a Type 66M-xx connector block and then connect that block
to the telephone company’s demarcation point.Individual 4-position modular jacks may be used instead of the type
66M-xx connector. We recommend the use of an external lightning / transient protection between the common
equipment and the telephone company...

IMI66-112
I
InstuhtionT0616, 
T0616-INTTypical Common
RING 2
RING 1
RING 6
Telco/PBXConnection
-
- I
4
.INETERMlNATiON‘TYPE 66M-XXCONNECTOR BLOCK
OR
. INDIVIDUAL 
6POSITIONMODULAR JACKS
UNIS025A
ILL (-01
n, co2
T5, co5
T6, R6 (-06
.
Figure 2.5 Typical Common Equipment to CO Line Connections
2-9 

I?lStUUatiO?lIMI66-I I2
25.7 Connecting The Line Jacks
Table 2.1, below, shows the connections for each line on each common equipment cabinet.
Table 2.1 Lie ConnectionsT0308, 
T03084NT
TO61 6, TO61 6-INT
5 TO61 6, TO61 6-INT
2-10 

IMZ66-112I?lstullution2.5.2 Protecting The Lines
Transient voltage spikes, if induced onto CO or CENTREX lines, can travel through the cable and into thecommon
equipment. The telephone company offers basic protection against this condition but it is usually designed to protect
the central 
office circuits. While this supplied surge protection will also provide some protection to the common
equipment, it should not be relied upon for total protection. To help ensure that external over-voltage surges do...

znst4zl&ionZMZ6tLZZ2
2=6 Connecting The Stations
Usually, the connections you make between the common equipment and the stations are via type 66M-xx connector
blocks that are cable connected to the common equipment Xl-pin male connector. The maximum total distance
allowed from the common equipment to the stations is 1000 feet for multiline telephones and 1500 feet for industry
standard telephones using 
#24 gauge, twisted-pair cable.
If spare conductors exist in the cables that are run between the...