I have a Infinite DVX Plus Mach I and a 7480-00 Caller ID interface unit. I am trying to get the two to communicate to each other however I was not sure if there is a way to test the Caller ID to determine if it is communicating with the phone system. Is there a special RS-232 cable that I should be using? I can’t determine the correct pin assignments for the Mach I. I have looked in various install manuals and other areas. I have the pin assignments for the Caller ID. In the system programing I have the Caller ID enabled, baud 9600, SIU1, and have changed the ring delay timer to 04. The dip switches on the MISB are all off (down). The dip switches on the CID are all on (down) for 9600 baud. Is there something I am missing?

Thank you in advance.

-BJ