User's Manual

SELEX Communications
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by SELEX Communications S.p.A. in writing
57
July 2010
8.2 Power modules maintenance precaution
Before maintenance operations involving power supply modules the power cable must be removed.
If the purpose of the maintenance is the replacement of the SWITCH or DC/DC modules the following
procedure must be followed:
48 Vdc powered devices:
• Switch off the device moving to the lower position the Main Power and Power switch.
• unplug the 48Vdc D-SUB 3W3 connector
• Remove the module as described in section 8.1.63.
48 VDC input
Power on/off switch
Main Power on/off switch