Cisco Model DPC3000 and EPC3000 DPC3000 User Manual page 26

How Do I Mount the Cable Modem on the Wall?
Location and Dimensions of the Wall-Mounting Slots
The following illustration shows the location and dimensions of the wall-mounting
slots on the bottom of the modem. Use the information on this page as a guide for
mounting your modem to the wall. See the Wall-Mounting Instructions
(on page 27).
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