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Proprietary Information: Not for use or disclosure except by written agreement with Calix.
May, 2023.
Installing Power and Network Cables
Prior to installing cables, the bottom access cover must be removed.
Removing the access cover
1. Rotate the u4hm until the bottom is facing you.
2. Remove the cover screws using a phillips head screwdriver and set aside.
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3. Once removed, grasp the cover and pull it from the u4hm.
4. Set the cover aside for later use.
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The pre-installed screws are Phillips head,requiring a #2 Phillips head screwdriver to
remove.
Note: Some early u4hm units shipped with tamper-proof Torx head screws instead of
Phillips head screws. If your unit is so equipped, use a security Torx driver instead.
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