I'm not sure if I made myself clear in my other posts. If this circuit is truly a T1 as you mentioned, which is for Local area data channels/subrate digital services, you should have your signal on pins 1, 2, 7 and 8 straight through.

Only a true 1.544 Mbps digital services circuit, such as a PRI, uses pins 1, 2, 4 and 5. Are you sure that this isn't your problem?

Should you be using the white/brown pair and not the white/blue pair? I know it's easy to refer to any circuit as a "T1", just like the way people use "RJ45" for any 8P8C plug/jack. Is it really a regular T1?


Ed Vaughn, MBSWWYPBX