NuTone Intercom Photo Gallery > NuTone NM200 Intercom Circuit Boards > NuTone NM200 Terminal Board
Only the NuTone NM200 has a separate Terminal Board inside the Master Station.
It is populated with 15 green Phoenix Connectors - for the 15 Remote Music Intercom Stations
There is a single Ground Wire lug and terminal for the Entry Door Station connections
It would be unlikely that this board will ever cause any problems
This Board is the same as what is used in the M&S Systems DMC1