Enterasys A4H124-24, Hardware Installation Manual

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Installing and Connecting a Redundant Power System
Enterasys A4 Fast Ethernet Switch Hardware Installation Guide 2-19
3. If you are installing the STK-RPS-500PS in a stacked configuration, repeat this procedure for
each STK-RPS-500PS, then proceed to
Connecting the RPS Cable and AC Power Cord .
Installing the STK-RPS-500PS on a Flat Surface
When installing the STK-RPS-500PS on a flat surface, the installation of the rubber feet is
recommended to prevent the STK-RPS-500PS from sliding on a flat surface.
To install the rubber feet:
1. Place the STK-RPS-500PS on its back on a sturdy flat surface to gain access to the bottom of the
unit.
2. Remove the four rubber feet from their plastic bag in the shipping box.
3. Locate the four marked locations on the bottom four corners of the STK-RPS-500PS.
4. Remove the protective strip from the back of one rubber foot and position it on a marked
location and press firmly into place. Repeat this procedure to install the remaining three
rubber feet.
5. After installing the rubber feet, return the STK-RPS-500PS to its upright position.
Connecting the RPS Cable and AC Power Cord
The STK-RPS-500PS is connected to the A4 PoE switch using the 1 meter RPS cable, as follows:
1. Turn off the A4 switch and unplug it from the power source before installing the
STK-RPS-500PS.
The A4 switch does not support hot insertion/removal of an RPS cable. If you hot insert an
RPS cable into a running A4 switch, the A4 switch will not recognize that an RPS cable is
installed and the A4 switch will lose power if the primary power supply fails.
2. Connect one end of the RPS cable to the redundant power supply connector on the A4 switch.
Then connect the other end to the redundant power supply connector at the rear of the
STK-RPS-500PS as shown in
Figure 2-14 on page 2-20.
3. Connect a standard AC power cord to the AC input power connector on the STK-RPS-500PS,
then plug the AC power cord into the main AC power outlet as shown in
Figure 2-14 .
The AC power LED on the front of the STK-RPS-500PS will turn green to indicate a successful
connection and the STK-RPS-500PS is operating properly.
4. Reconnect the A4 switch to the AC power source.
5. Turn on the A4 switch.