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View Full Version : Whar are DMA & PMA leds on tellabs 8110 modem


kashanhoney63
Mar 16, 2010, 11:59 PM
We have a tellabs modem,CTU-S.Its PMA light shines off and on and our link is disconnected.what is the problem?

Scleros
Mar 17, 2010, 06:49 AM
A Google search yielded the following:

DMA - Deferred Maintenance Alarm
PMA - Prompt Maintenance Alarm

I have no idea if this correct, so contact Tellabs (http://www.tellabs.com/Tellabs) for confirmation or visit Tellabs Portal (https://www.portal.tellabs.com/global/portal/ep/home.do) and look for literature on the unit such as a service or user's manual. The datasheet (http://www.tellabs.com/products/8000/tlab8110ntu-ctu-s.pdf) wasn't that detailed.