Is there any Adtran guide that shows what the different colors and states of the voice light on the front of the unit can be? I have seen it blink green when ringing, I have seen it stay solid red, and I have also seen it stay solid green. What do these and other color / states represent?
Hardware installation guide can be downlaoded.
Off All ports are inactive.
Green (solid) At least one port is off hook.
Green (flashing) At least one port is ringing.
Amber At least one port is in test.
Red Fault condition.
I marked the correct answer above, but I also wanted to give you a link to a guide which goes over the LED definitions for all ADTRAN OS products.
The voice LED's illuminate, when analog calls are placed thru the unit. If you get a flashing Red LED, that is iindicative of a fault condition and a fault condition would be caused by these type of events:
occur, either from the analog loop wiring, a x-connect or internal wiring of the 66 block
that is shorted, or even possibly an analog cable that has a short.
It is possible for an analog port to become damage by prolong exposure to the 2 reasons above.
Or to have become damaged by a power spike or surge that travels down the analog loop back to the unit.
To troubleshoot, access the unit, and from the CLI , do a "sh event ", which should tell you which pairs are incurring a fault condition. To determine if it is the unit or if it is the wiring, disconnect the Aphemol cable, and then place a call to the number/numbers associated with the ports that were displaying the fault condition. If the light still goes RED with the amphenol disconnected the problem will be hardware related and the unit would need to be replaced. If the LED does not turn Red I would check your internal wiring, including amphenol and 66 block.