Replacing the 2145 UPS electronics

During routine maintenance, you might have to replace the 2145 UPS electronics assembly.

Follow all safety notices when replacing the 2145 UPS electronics assembly.

Attention: When reinstalling the signal cables, use only the top row of serial connectors. Installing signal cables in the bottom row of serial connectors causes the 2145 UPS to malfunction.
Important: Check to make sure that any SAN Volume Controller that is powered by this 2145 UPS is shut down and powered off, prior to step 1.
Perform the following steps to replace the 2145 UPS electronic assembly:
  1. Replace the two screws in the front of the 2145 UPS. (number one in Figure 1).
    Figure 1. Replacing the electronics unit from the 2145 UPS
    This figure shows where the electronics unit from the 2145 UPS is installed
  2. Insert the electronics assembly (number two in Figure 1) into the 2145 UPS.
  3. Replace the front panel by pressing the sides inward and pushing both ends towards the 2145 UPS, as shown in Figure 2.
    Figure 2. Replacing the 2145 UPS front panel
    This figure shows how to install the 2145 UPS front panel
  4. At the back of the 2145 UPS, connect the signal cables (number one in Figure 3).
    Figure 3. Connecting the 2145 UPS signal cables
    This figure shows where the signal cables are connected
  5. At the front of the 2145 UPS, press and hold the on button until you hear a beep (approximately one second). The mode indicator stops flashing, and the load-level indicators display the percentage of load that is being applied to the 2145 UPS. For information about the controls and indicators, see 2145 UPS controls and indicators.
Parent topic: Removing and replacing 2145 UPS parts
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