[asterisk-users] T1 cable for Digium T1/E1 Cards

[Jeronimo Romero]

I assume that I would need to cross these pins over if I were going from
t1 card to t1 card. Is this correct?

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Tom
Sent: Sunday, March 18, 2007 7:17 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] T1 cable for Digium T1/E1 Cards

A common Cat5 straight through cable will work fine.

T1s use 1 and 2 (rx tip and ring) and 4 and 5 (tx tip and ring) for
signals.

A T1 loopback plug would be wired 1 to 4 and 2 to 5.

They come in handy for testing T1 cards or for providing a hard loop 
for the telco.

Tom

At 05:42 PM 3/18/2007, you wrote:
>Is there any technical difference between a T1 cable and a cat5e patch
>cable as far as using them with Digium T1/E1 cards? Can PRI circuits
>terminating at a smart jack connect successfully to Digium cards using
>straight through CAT5e cables? If so, are they using all of the pins in
>the cable?
>
>Thanks in advance
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