Comtech EF Data SDM-9600 - Manual (Page 53)

Hardware Installation
Memotec Inc. 4-15
4.8 Powering Up the Unit
4.8.1 Connecting to the Power Source
NOTE:
Information about the power input modules is provided on “Power Input
Modules” on page 5-4 .
CAUTION:
This procedure must be carried out by a qualified electrical
technician only.
WARNING:
A 20A circuit breaker must be provided as part of the
building installation for the -48VDC power connection.
To connect the SDM-9600 chassis to the power source:
1. Turn off the circuit breakers to the -48 volt DC power supply.
WARNING:
To avoid electrical shock and possible damage to the
unit, ensure that the -48 VDC power supply is shut OFF before
you connect the SDM-9600 DC unit.
2. Ensure that all blades and filler panels are fully inserted into their slots and secured
in place.
3. Ensure that all wires of the -48 VDC connection harness have an appropriate
connector for installation onto a DC inlet.
CAUTION:
Select a harness with a wire gauge capable of supporting a maximum
of 20 Amps.
4. Remove the clear plastic protector from one of the DC inlets located at the rear of the
SDM-9600 chassis, either
INPUT A
or
INPUT B
, by removing the screws from the
two spacers on either side of the inlet lugs. Refer to Figure 5-2 .
5. Install the harness to the DC inlet, terminating the wire connectors on the lugs
labelled
-48V
and
RTN
.