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Step 3: Connect the telephone sets to TEL1 and TEL2. Use RJ-11 telephone line to connect
TEL1/TEL2 port on the cable modem and telephone socket on telephone.
Step 4: Connect the AC Adapter to the cable modem by inserting the barrel-shaped connector into the
mating power connector on the back of the cable modem. Exercise carefully to ensure the
connectors are properly aligned prior to insertion and ensure the two connectors engage
completely. The cable modem is shipped with an AC adapter. Remember to use only power
adapter that came with the cable modem. Other power adapters might have voltages that are
not correct for your particular cable modem. Using a power adapter with the wrong voltage can
damage the cable modem.
DCM-3012G VoIP Cable Modem Quick Installation Guide
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