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2.2 Installation of the Hybrid IP-PBX
Installation Manual 45
4. To protect the back board from static electricity, do not touch parts on the back board in the main
unit and PSU. To discharge static electricity, touch ground or wear a grounding strap.
The following procedures are for installing or replacing a PSU only. Do not replace or remove the
PSU for any other purpose.
Installing the Power Supply Unit
1. Insert the PSU along the guide rails.
CAUTION
For safety reasons, do not touch parts in the PSU.
2. Push the release lever in the direction of the arrow, so that the PSU engages securely with the
connector on the back board.
Guide Rail
Release Lever
Back Board