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2.2 Installation of the Hybrid IP-PBX
46 Installation Manual
3. Turn the 4 screws clockwise, in the order indicated by the numbers 1 to 4, to fix the PSU.
Replacing the Power Supply Unit
1. Unplug the AC power cord.
2. Turn the 4 screws counterclockwise to loosen them.
Screws
1
3
2
4
Screws