Powering Up and Checking LEDs

Powering Up and Checking LEDs

Once you have completed the steps described in the previous sections for the Megabit Modem 410F and 420F, you are ready to power up each modem.

1Plug the Megabit Modem 410F and 420F power supplies into the facility power and ensure the Power LED is lit solid green.

2Allow the modems approximately 30 to 60 seconds to synchronize.

3After both modems are powered up, verify the following LED indications on each modem:

•LAN LINK LED is solid green (when the Ethernet port is connected)

•ADSL SYNC LED is solid green when the Megabit Modem 410F synchronizes with the Megabit Modem 420F (the LED flashes green when synchronization is lost between the two modems)

•ADSL MAR LED is solid green if the margin is at or above the configured Margin Threshold (see page 53)

If conditions other than those listed above exist, check the cabling. See “Installing Cabling” on page 14 for instructions.

The illustration and table on page 17 describe LED indications for all operational modes. LEDs on the modem front panel provide continual status at-a-glance for network and modem connections.

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Megabit Modem 410F and 420F User Manual