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Pipeline 130 Back-to-Back Cable

Pipeline 130 Back-to-Back Cable

Pipeline 130 Back-to-Back Cable

(OP)
I am currently trying to diagnose a problem with a remote site that is connected over a T1 line with Ascend Pipeline 130 routers.  The routers have been working fine for months, but now the connection is fluctuating between up and down.  I am trying to win my case with the phone company that the equipment is configured properly, but can't remember the pin-out for the Back-to-Back cable that simulates the T1 line.  Does anyone have this pinout or a website with the diagram?  Thanks.

RE: Pipeline 130 Back-to-Back Cable

1 to 4
2 to 5
4 to 1
5 to 2

-CL

RE: Pipeline 130 Back-to-Back Cable

What encaps protocol are you using?  PPP?  Frame Relay?

There are debug tools you can use for either.  But the loopback plug should be revealing.

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