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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 11 years, 11 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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