Sercomm DG4244 - Rear Panel I;O Ports Identification; Phone, USB, and LAN Ports; Coaxial Port and Battery Backup Option

DG4244 User Guide
DG4244 User Gude_rev01 Sercomm copyright
Rear Panel I/O
Option (Sold separately) Battery Back Up
When using battery back up unit with Device, battery only be activated by losing PSU power source. Under battery mode the device will limit to
support only partial DOCSIS channel & VoIP, and disable Ethernet & WiFi & USB access.