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

Power

located on the side

of the ADSL Modem

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

Power ON and synchronized with central office, but a line error

Intermittent Red

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

4

030-300108D

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Westell Technologies 36R515 manual Modem Indicator Lights, Ready Indicator State Description