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Shelf Installation
120 Vac
or 220 Vac
Protective
Ground
-48VDC
-48V Ret. Earth
Ground
Figure 2-5
Shelf Installation
When you order an OCM shelf system, it is factory configured with the proper connector panels
installed at the rear panel. The panels are field-replaceable.
along with an optional dual shelf configuration.
•
Shelf dimensions are: 19.0"W x 7.0"H x 12.0"D.
•
Sixteen slots are used for plug-in modules.
•
Two dedicated slots are reserved for two power supply modules of the same type (GPS-
11, GPS-11E, or DPS-19).
•
A dual shelf configuration allows up to sixteen more module slots and two additional
power supply modules of the same type.
036R340-000
Issue 16
Bus Power Cable Connector J49
AC
Rear
Panel
-12V
+12V
+5V
0V
DC
GPS-11
Rear
or
Panel
GPS-11E
or
DPS-19
Power
Supply
Shelf Ground Connections
Ground Connections
Office Connunications Manager OCM-1000/OCM-2000
Installation & Operation
Shelf Installation
Zone 2
Signal Ground
Strap
Chassis Ground
Earth Ground Point
Figure 2-6
shows the rear of the shelf
Front Panel Gnd.
Test Points
To Zone 3 DB-25
Pin 7
(via plug-in modules)
To Zone 1 and Zone 3
Cable Shields to plug-in
module front panels
2-9
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