Installation guide

C HAPTER 1 | Introduction
Description of Hardware
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OPTIONAL REDUNDANT POWER SUPPLY
The switch supports an optional Redundant Power Supply (RPS), that can supply
power to the switch in the event the internal power supply fails.
POWER SUPPLY SOCKET
There are two power sockets on the rear panel of each switch. The standard
power socket is for the AC power cord. The socket labeled “RPS” is for the
optional Redundant Power Supply (RPS).
Figure 5: Power Supply Sockets
Stack Link Green Uplink and downlink operating normally.
Flashing Green Uplink has failed.
Flashing Amber Downlink has failed.
Off No stacking link present.
Module Green An expansion module is installed and operating
normally.
Amber An expansion module is installed but has failed.
Off There is no module installed.
Stack ID 1-8 Indicates the switch stack ID.
The Master unit is numbered 1. (Note that If the
master unit fails and a backup unit takes over, the
stack IDs do not change.)
Slave units are numbered 2-8.
Off In standalone mode.
Table 2: System Status LEDs (Continued)
LED Condition Status
Power Socket
Redundant Power Socket