Sierra Video Ponderosa 3G Series Routing Switcher - Manual (Page 23)

PONDEROSA
17
Redundant Power Supplies
If redundant power supplies are ordered, the frame will contain two complete power supplies with
health monitoring LEDs. If a power supply should fail the other power supply will automatically
take over.
If a non-redundant power supply system is ordered, the redundant power supply slot will contain
a power supply frame with only the fan and health monitoring LEDs. This is referred to as a “fan
sled”. The “Module power” LED will not be lit on the fan sled. The redundant power AC
connection need not be connected for units with non-redundant power supplies. The fan sled will
operate from the primary power supply.
The “Fault” LED (red) turns on if there is a fan failure.