Using MVX port to Panasonic AK-HCU3550 Communication (DB25)
Using ENG - set to 4wire ClearCom
Clear-Com 4-wire (MVX) <----> Panasonic Communications DB25
Pin 3 RX+ <----> Pin 1 (INCOM ENG OUT H)
Pin 4 TX+ <----> Pin 4 (INCOM ENG IN H)
Pin 5 TX- <----> Pin 5 (INCOM ENG IN C)
Pin 6 RX- <----> Pin 2 (INCOM ENG OUT C)
Using PROD - set to 4wire ClearCom
Clear-Com 4-wire (MVX) <----> Panasonic Communications DB25
Pin 3 RX+ <----> Pin 14 (INCOM PROD OUT H)
Pin 4 TX+ <----> Pin 17 (INCOM PROD IN H)
Pin 5 TX- <----> Pin 18 (INCOM PROD IN C)
Pin 6 RX- <----> Pin 15 (INCOM PROD OUT C)