APC Masterswitch PDU – Password Reset


APC Masterswitch PDU – Password Reset

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This guide details howto reset the password on an APC AP7920 PDU, it should however work the most APC PDUs.

Before you start

You will need these tools:

  • Serial cable – USB/Serial to RJ11
  • Paper Clip
  • Laptop with a serial client or similar (e.g. Putty)


Connect the serial cable to your device and the console port of the APC PDU. Then get your paperclip and do the following:

  1. Press the reset button for 10 seconds
  2. The light on the network port should pulse.
  3. Release the reset button and press it again for 1 second
  4. The light should pulse / go orange
  5. After a short while (10-20s), the reset will be complete
  6. Now you can login with the default login credentials of: apc/apc
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