Nortel Networks Passport 4400 - Manual (Page 108)

Power Supply Passport 4400 Hardware Installation Manual
10-4
Five-slot Chassis with Redundant Power Supply (model 4450R)
A Passport 4400 unit with the redundant power supply option contains a
subassembly that houses extra power supplies. It provides an extra power supply
in the event that one of the original four fails.
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 (refer to Table 10-1).
Figure 10-4. Indicators for Passport 4400 with Redundant Power Supply
Figure 10-5. 5-slot Redundant Power Supply
Indicators
1
8
Grounding
Cable
Slave Power
Supply
Master Power
Supply
Power Sharing
Cable
Power Sharing
Board
Jumper J12
Status
Cable
Power Cable
(to Ethernet
Base Module)
Power Supply
Connector
Connector for
DVEM Power
Harness