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Replacing a Cisco AC/DC Power System Controller Tray

78-16776-02

Install the Replacement Controller Tray

Figure 5 Removing the Alarm Interface Board Cable on the Second Version of the Controller Hardware

Step 6 Remove the intra-shelf communications cabling:

• J9 terminal block (Figure 5 or Figure 4 #3)

• J8 terminal block (Figure 5 or Figure 4 #4)

• J1 Ethernet cable (Figure 5 or Figure 4 #5)

• J1 terminal block (Figure 5 or Figure 4 #6)

Note When the controller is disconnected from the system, the rectifiers return to their default voltage

(53.5 VDC). The change in voltage will not have an effect on the load. The output will remain

at 53.5 VDC until the new controller tray is installed and activated.

Step 7 Remove the controller tray ground connection by removing the Phillips head screw (Figure 5 or Figure 4

#7).

Step 8 Remove the wire tie holding the controller tray in the system shelf (Figure 5 or Figure 4 #8).

Step 9 Pull the controller tray out of the system shelf.

Install the Replacement Controller Tray

Step 1 Place the controller tray in the system shelf.

Step 2 Reinstall the controller tray ground connection by connecting the Phillips head screw (Figure 5 or

Figure 4 #7).

Step 3 Use a new wire tie to replace the one that was removed in the previous procedure.

Step 4 Reconnect intra-shelf communications cabling (Figure 3); cables are labeled with the appropriate

jumper number:

• J9 terminal block (Figure 5 or Figure 4 #3)

• J8 terminal block (Figure 5 or Figure 4 #4)

• J1 Ethernet cable (Figure 5 or Figure 4 #5)

124768

Wire to be on the

far right of J9

Wire to be on the

center pin of J8

8 7

563

1 2 3 4 5 6 7 8 9 10

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Cisco Power system Manual de usuario Pagina 5