Instruction manual

5. Expansion, Replacement and Removal
162
(1) Uninstallation
[Step 1]
Check the EPU and the slot from which backup power is supplied to a device. Turn off the power supply module
mounted in the slot.
[Step 2]
Turn off the main device.
[Step 3]
Disconnect the stand-by power supply cable from the main device and the EPU.
[Step 4]
Disconnect the AC power supply cable from the main device.
[Step 5]
Remove the main device.
[Step 6]
The EPU and the power supply module used for a backup power supply to the switch can be reused for other
switches. Place them as they are if you intend to use them repeatedly, or else, remove them.
Do not touch the parts or the soldered surfaces on the power supply module. For storage, put
the module in an antistatic bag.
When the EPU is used with the removed power supply module, install the blank panel.
Otherwise, the components may cause the injury or invading foreign matters may cause
failure.