Removing the battery backplane and cables: 2145-DH8

You can remove the battery backplane and cables in a SAN Volume Controller 2145-DH8 node.

Before you begin

DANGER

Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords. (L003)

or

or

This service action assumes:

• The node is turned off. If you must turn off the node, ensure that its data is mirrored and synchronized, and that there are no dependent volumes, as described in MAP 5350: Powering off a node.
• The power cables are disconnected.
• The top cover is removed.
• The batteries are removed.
• The air baffle is removed.
• The PCI express riser assemblies are removed.

About this task

To remove the SAN Volume Controller 2145-DH8 battery backplane or the attached cables, complete the following steps as needed. Figure 1 and Figure 2 show the backplane and associated cables.

•  1  Power sense cable
•  2  Low Pin Count (LPC) interface cable
•  3  LED cable

•  1  Power cable
•  2  Emergency power off Warning (EPOW) cable

1. Raise the locking tabs, and slightly pull back and lift the battery backplane from the chassis, as shown in Figure 3.

   

2. Remove the LPC cable from the LPC adapter on the LPC connector.
3. Remove the LPC adapter board from the LPC connector on the system board, as shown in Figure 4.

   

4. Remove the EPOW cable from the system board to the disk drive backplane and from the system board to the battery backplane.
   Note: The short wire is connected to the disk drive backplane and the long wire to the battery backplane.
5. Remove the dummy DIMM from slot 6; the slot is shown in Figure 5, with the DIMM wrapped by the power sense cable.

   

6. Remove the second dummy DIMM from slot 3.
7. Remove the power sense cable from between the power supply unit and the system board, as shown in Figure 6.