The MM710 E1/T1 media module LEDs function in the following manner during initialization:

• The yellow ACT LED is OFF while the red ALM and green TST LEDs remain ON during the entire initialization sequence.

• If only the red ALM LED turns ON when power is turned on or reset, either the media module processor is dead or the media module is being held permanently in reset.

• The green TST LED turns OFF on completion of the diagnostic and initialization sequences.

• If the initialization tests fail, the red ALM LED remains ON.

• If the tests all pass, then all LEDs are turned OFF until Communication Manager starts using the media module.