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Question About 3M Intercom System 445AA
445AA D-20...

D20 looking for the jumper settings on the main board (78-8028-9241-0) there is (3) The mic or VOX does not work and 2 of the jumper are enabled. Any help would be appreaciated.

Asked by Tom on 05/07/2012 0  Answer

ManualsOnline posted an answer 12 years, 7 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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