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
located on the lower edge of the cabinet and into the
mounting surface.
::? :’.’
Step 5
Step 6
_.“.I... . . . . .I_.“........-.-^.“-...-. . . .._.“_.“...-.-...- . . . .. . . ..^.I........
. ..“I.““.“.... . . ..“...“._.... . . ..-.“....._. ..--.......-.... . . . . . ..“-.-...I......“...“...
Step 7Figure 2.1 Mounting The Cabinet
2-3 
						

							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 should be installed between the power cord and the AC outlet
(see 1.5 for surge protector specifications).
0Do not connect the AC power cord until you have checked the installation.
0To apply AC power, COMeCt the power cord to the electrical outlet through the power-line surge protector.
0Do not attach power cord directly to the building surface.
0Read the sections on battery backup (24.2) and system grounding (2.4.3) before you apply power to the system.
”Surge
protector
UN6019/
,
Figure 2.2 AC Power Connections and Grounding
2-4-Status
indicator
earth
ground
. 
						

							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 optional Comdial model BBUOl, BBU02, BBL02 external battery assembly provides a minimum of one hour of
operation should the AC power to the system be interrupted. To calculate the actual minimum battery back-up time
use the following equation:
T=(0.8) 
e
1 + [(O.l) N ]+[(0.04) M]
T= Back up time in hours for multiline telephones
e 
= Ampere-hour capacity of batteries (BBUOl, e = 6.5 Ampere hours; BBU02, BBL02, e = 15 Ampere hours)
N=Total Number of Mulitline Stations
M=Total Number of IST Stations
Maximum Conjiguration Examples
The following two equations demonstrate how to calculate the battery backup time for a fully loaded system.
BBUOlBBU02,BBLOZl
T=(0.8) 6.5T=(0.8) 151 + 
[(O.l) 16]+[(0.04) 1611 + t(O.1) 16 ]+[(0.04) 161
T= 5.2
3.24(1.6 hours of backup time)
T=$
(3.7 hours of backup time)
The BBU02 external battery assembly may include batteries from either of the following suppliers:.
Model PS-12150 from Power-Sonic Corporation, Redwood City CA, 94032..
Model PE12V 15 from GS PORTALAC, City Of Industry CA, 9 1748
During AC operation, the common equipment provides recharging current to maintain the voltage potential of the
external battery assembly at an operational level.
NOTE: The optional external battery assembly requires approximately ten (IO) hours to completely recharge tofu11
potential after it has been completely discharged and, in some cases, when initially installed.
2-6 
						

							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 voltage of 13.1V DC. A completely
discharged battery may check as low as 
1OV DC,
When the battery backup is installed and the system is powered, check the following:l
Each fully charged battery connected to the system should have a voltage of less than or equal to 13.8V DC (if
the value is greater than 
13.8V DC, contact Comdial).
NOTE: The typical battery service check is every three months..
 . .:i:,:2.4.3 Grounding The System
7 Out To Battery
Backup
The common equipment cabinet has internal secondary surge protection on all line ports. In order for this protection
to be effective, you 
must connect the cabinet to a reliable earth ground such as a metal cold water pipe or a building
frame ground.The grounding wire 
must be #lO or #12 insulated, solid copper and separate from the three-wire AC
line cord. the common equipment cabinet has a ground stud for this 
purpose.In addition, this ground also serves as
an 
“RFI” ground that reduces the possible effects of radio frequency interference.’
2-7 
						

							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 line connections (see Section 2.5.2).
The line connections for the common equipment cabinet are standard modular plug/jack connections. Each modular
jack provides termination for two lines 
(see figure 2.4). Use twisted-pair wiring for the line cord that you route
between the outside line termination and the common equipment termination.
Table 2.1 shows the line connection
details for all four of the common equipment base units. 
Figures 2.4 and 25 illustrate typical line connections.
Refer to the following list when installing any telephone lines:
I. Never install telephone wiring during a lightning storm
2.Never install telephone jacks in wet locations unless the jack is specifically designedfor wet locations.
3.Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface.
4.Use caution when installing or modifying telephone lines.
TO308, T0308-INT3-Line, I-Station Unit
L Music Jack
Station 
lo-17Station 17 Audible Relay Contacts
Common Audible Relay Contacts
T0616, 
T0616-INTC-Line, 164tation UnitLines 5, 6Lines 3,4Lines I,2Station 
18-25lStatus LEDL Music Jack
Station IO-17
Station 17 Audible Relay Contacts
Common Audible Relay Contacts
UNISOPOA
Figure 2.4 Typical Common Equipment Line Connections
2-8 
						

							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 not
damage the system, we recommend that you install and properly ground gas discharge tubes, or similar primary
protection devices, on all lines.
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							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 
66M-xx connector blocks and the station jacks, it is a
good practice to connect them to earth ground to help prevent them from inducing radio frequency and/or 
AC
interference into the system.i
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, and do not connect wires from adjacent stations together.
Tables 2.2-2.3 show the station connection details for all four common equipment base units. Figure 2.6
illustrates typical station connections.2.6. I Understanding Station Connections
Multiline proprietary stations require connection to both the voice and data pair of a station port (for example, station
10, 11) If you have installed 
‘EXIST card(s), you can also connect an IST device to the mulitline station port
(see Section 1.4.3).Connect an IST device to the voice pair of the station port only.
qThe 6- line, l&station base unit (TO616, TO616INT) has ports 10 through 25
c]The 3- line,g-station base unit (TO308, TO308-lNT) has ports 10 through 172.6.2 Understanding Paired Ports
Overload Protection
Station ports are paired for overload protection.Because of this power pairing, a problem with station ten may
actually manifest in station 1 l-keep this in mind when you are troubleshooting. The station ports are paired asfollows:
Overload Pairing
10-11
12-13
14-15
16-17
18-19
20-21
22-23
24-25
2.6.3 Connecting The Station Cable Clips
Each cabinet-mounted 50-pin male connector has a retaining clip, which secures the mated connection.The clip
secures the connection by snapping into a slot on the cable-mounted connector.You must pull back the retaining
clip to unsnap it before you can separate the connectors.
2-12