User guide

13
9. For a second telephone, plug the telephone wire of a single-line telephone into the
TEL 2 port on the rear of the CH6640E.
10. Check that the LEDs on the front panel cycle through the following sequence:
CH6640E/CG6640E LED Activity During Startup
LED Description
POWER
Turns on when AC power is connected to the
CH6640E/CG6640E.
Indicates that the power is connected properly.
RECEIVE
Flashes while scanning for the downstream receive channel.
Changes to solid green when single downstream channel is
locked.
Changes to solid blue when multiple downstream channels
are locked.
SEND
Flashes while scanning for the upstream send channel.
Changes to solid green when single upstream channel is
locked.
Changes to solid blue when multiple upstream channels are
locked.
ONLINE
Flashes during CH6640E/CG6640E registration and
configuration.
Changes to solid green when the CH6640E/CG6640E is
registered successfully and ready for Internet access