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030-300108D
Modem Indicator Lights
The Modem indicator lights (see picture below) are used to verify the unit’s operation and status. The tables
below describe what the lights mean.
Connections are
located on the side
of the ADSL Modem
Power
Ready
Link
Activity
Power Indicator
State
Description
Steady Green
Power ON
No Light
No power
Ready Indicator
State
Description
Slow Flashing Green
Power ON and attempting synchronization
Fast Flashing Green
Power ON and synchronized with central office and downloading
operational sequence
Steady Green
Power ON and synchronized with central office
Steady Green
Intermittent Red
Power ON and synchronized with central office, but a line error
condition was detected
Steady Red
Unit diagnostic failed
Blinking Red
Unit failed power-up diagnostic
No Light
No power
Link Indicator
State
Description
Steady Green
Link between your computer and your DSL modem is established
No Light
No link established between your computer and your DSL modem
Activity Indicators
State
Description
Pulsing Yellow
Traffic being transmitted. Pulses should match the receipt or
transmission of Ethernet data between your DSL modem and your
computer.
No Light
No traffic
