Replacing the redundant AC-power switch: 2145-CG8 or 2145-CF8

You might need to replace a redundant AC-power switch on a SAN Volume Controller 2145-CG8 or 2145-CF8 node.

Before you begin

Note: The following procedure is applicable only for 2145-CG8 or 2145-CF8 nodes.

The redundant AC-power switch FRU assembly includes the redundant AC-power switch and the input power cables. They should all be replaced together. These instructions assume that a redundant AC-power switch has been removed and the one or two nodes that were connected to it are powered off.

About this task

To replace a redundant AC-power switch, complete the following steps.

Procedure

Attach each of the two mounting plates to the redundant AC-power switch using three M3 Torx T8 head screws. Position the mounting face, as shown in Figure 1, on the side of the redundant AC-power switch that contains the output power sockets.
Figure 1. Attaching the mounting plates
Using the labels provided, label each end of the two redundant AC-power switch input power cables. Unless the configuration is changing, the labels are the same as those on the cables removed with the old redundant AC-power switch.
Label the end of the rack power distribution, using the general format:, as follows:
```
Power source name, outlet id to 
redundant AC-power switch location [MAIN | BACKUP] input
```
Example:
```
Power source D2, outlet 4 to redundant AC-power switch pos 7 MAIN input
```

Label the end of the redundant AC-power switch end, as follows:

Redundant AC-power switch location [MAIN | BACKUP]
input from Power source name, outlet id

Connect the input power cables to the redundant AC-power switch. You want to connect the cables now, because it is difficult to access the input power sockets on the redundant AC-power switch when it is installed in a rack.
Connect the main input power cable to the redundant AC-power switch.
Connect the backup input power cable to the redundant AC-power switch.
Secure both the redundant AC-power switch input cables, as shown in Figure 2, using the clips of the redundant AC-power switch.
Figure 2. Power cable clips
Install the redundant AC-power switch in the rack. The four “C” clips for mounting the unit should already be positioned in the rack mounting bar.
Position the redundant AC-power switch in the rack, pushing the cables through to the front of the rack. Mount in place using the four M6 screws.
Connect the redundant AC-power switch power input cables to the site power.
1. Determine a suitable cable route from the redundant AC-power switch to the power distribution units.
2. Route the main input power cable of the redundant AC-power switch to the specified power distribution unit, and connect it.
3. Route the backup input power cable of the redundant AC-power switch to the specified power distribution unit, and connect it.
4. Verify that the redundant AC-power switch power cables are tidy. Ensure that they do not obstruct other equipment and are tied in place where necessary.
Test the redundant AC-power switch before connecting it to the 2145 UPS-1U, using MAP 5340: Redundant AC power verification.
Connect the one or two 2145 UPS-1U units that are powered by this redundant AC-power switch. The power cables should still be plugged into the 2145 UPS-1U units.
1. Connect the other end into the output power sockets on the front of the redundant AC-power switch.
2. Check the labels on the cables to see which socket they should be connected to.
3. If the uninterruptible power supply units do not power on automatically, power them on by pressing the power button for five seconds.
Power on the one or two SAN Volume Controller nodes connected to this redundant AC-power switch.