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Power Supplies Passport 4400 Hardware Installation Manual
9-3
5-slot Chassis with Redundant Power Supply
A 5-slot Passport 4450 chassis with the redundant power supply option contains
a subassembly that houses an extra power supply in the event that one of the
original four fails. This unit is available in either AC and DC power; the figure
below shows an AC unit.
Figure 9-3. 5-slot Passport 4455 with Redundant Power Supply
Two indicator lights that monitor the power supplies are located at the top right
side of the front bezel. The triangle-shaped (green) indicator is lit when all power
supplies are working properly. The rectangle-shaped (red) indicator lights up
when there is a problem with one or more power supplies in the unit, or when
too many power supplies are connected (see Table 9-1 on page 9-5).
Figure 9-4. Indicators for Passport 4400 Unit with Redundant Power Supply
Connector for
DVEM Power
Harness
Power Cable
(to Ethernet
Base Module)
Status
Cable
Jumper J12
POS8
POS1
Input Connectors
for AC Unit
Input Connectors
for DC Unit
(side of power supply)
Grounding
Cable
Indicators