SMC Networks 8612T - annexe 1, Руководство по установке

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D
ESCRIPTION OF
H
ARDWARE
1-5
Optional Redundant Power Unit
The switch supports an optional Redundant Power Unit (RPU), that can
supply power to the switch in the event of failure of the internal power
supply.
Power Supply Receptacles
There are two power receptacles on the rear panel of the switch. The
standard power receptacle is for the AC power cord. The receptacle
labeled “RPU” is for the optional Redundant Power Unit (RPU).
Figure 1-3. Power Supply Receptacles
System Status LEDs
LED Condition Status
Power On Green The unit’s internal power supply is operating
normally.
On Red The unit's internal power supply has failed.
Off The unit has no power connected.
RPU On Green The redundant power supply is operating
normally.
On Red The redundant power supply has failed.
Off No redundant power supply is connected.
Diag On Green The system diagnostic test has completed
successfully.
Flashing Green The system diagnostic test is in progress.
On Amber The system diagnostic test has detected a fault.