CHECKING
LED INDICATIONS

PRELIMINARYChapter 3: Installing the Modem

SETTING UP ADSL SERVICE

The service provider sets up the ADSL parameters for your service. The modem must have the ADSL SYNC LED lit before you can connect sessions with your service provider. Verify SYNC in the following section, “Checking LED Indications.”

The following table describes LED indications for all operational modes. LEDs on the modem

 

front panel (page 16) provide continual status at-a-glance for network and modem connections.

 

 

 

 

 

 

 

RY

 

 

LED

State

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

PWR

On green

 

Modem has power.

A

 

 

 

 

Off

 

Modem does not have power.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAN

 

 

 

 

 

 

 

 

 

 

 

LINK

On green

 

A PC, hub, or other network device is connected to the modem

 

 

 

 

10/100BASE-T interface.

 

 

 

 

 

 

 

 

N

 

 

 

 

 

Off

 

I

 

 

 

 

 

 

No device is connected to the modem 10/100BASE-T interface.

 

TX

Flashing green

Modem is transmitting data to devices on the LAN.

 

 

Off

 

Modem is not transmitting data to the LAN.

 

 

 

RX

Flashing green

Modem is receiving data from devices on the LAN.

 

 

Off

 

ModemMis not receiving data from the LAN.

 

 

 

 

 

I

 

 

 

 

 

 

 

 

ADSL

 

 

 

 

 

 

 

 

 

 

 

SYNC

On green

 

ADSL transceiver is synchronized and in normal operation mode.

 

 

Flashing green

ADSL transceiver is in a start-up sequence.

 

 

 

 

Off

 

ADSL transceiver is not synchronized or is in a mode other than

 

 

 

 

normal operation or start-up.

 

 

 

 

TX

Flashing green

Modem is transmitting data to the service provider.

 

 

EL

 

 

 

 

 

 

 

Off

 

Modem is not transmitting data to the service provider.

 

RX

Flashing green

Modem is receiving data from the service provider.

 

 

Off

 

Modem is not receiving data from the service provider.

 

MAR

On green

 

ADSL margin is at or above the value set by the service provider.

PR

Off

 

ADSL margin is below the value set by the service provider.

On yellow

 

Telephone receiver is off hook.

 

 

 

 

OH

 

 

 

 

 

 

Off

 

Telephone receiver is on hook.

 

 

 

 

 

 

 

 

 

 

 

 

Megabit Modem 500L Installation Manual

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