asterisk users - Mar 2007 - T1 cable for Digium T1/E1 Cards

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

You can use a patch cable, yes. The T1 will look to use pins 1,2,4
and 5 while Ethernet will typically use 1,2,3 and 6 provided you're
not using POE or something simliar that requires additional pins.

On 3/18/07, Jeronimo Romero <jromero@eusnetworks.com>
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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http://www.btwtech.com/

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
>_______________________________________________
>--Bandwidth and Colocation provided by Easynews.com --
>
>asterisk-users mailing list
>To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

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@lists.digium.com
[mailto:asterisk-users-bounces@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
>_______________________________________________
>--Bandwidth and Colocation provided by Easynews.com --
>
>asterisk-users mailing list
>To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
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asterisk-users mailing list
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So a regular cross over cable wouldn't work?

-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of BJ Weschke
Sent: Sunday, March 18, 2007 10:35 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] T1 cable for Digium T1/E1 Cards

 Yes. At that point, you're looking for a T1 "cross-over".

 The pinout is as follows:

1
	
4
	
RX/Ring/- <-->TX/Ring/-
2
	
5
	
RX/Tip/+ <-->TX/Tip/+
4
	
1
	
TX/Ring/- <-->RX/Ring/-
5
	
2
	
TX/Tip/+ <-->RX/Tip/+
3
	
3
	
Shield/Return/Ground
6
	
6
	
Shield/Return/Ground

On 3/18/07, Jeronimo Romero <jromero@eusnetworks.com>
wrote:
> 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@lists.digium.com
> [mailto:asterisk-users-bounces@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
> >_______________________________________________
> >--Bandwidth and Colocation provided by Easynews.com --
> >
> >asterisk-users mailing list
> >To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
>
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>

-- 
Bird's The Word Technologies, Inc.
http://www.btwtech.com/
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jeronimo<br>
there is no difference...<br>
<br>
Jeronimo Romero wrote:
<blockquote
 cite="mid1AE061B6B8635C459CD4E6A14EA6BCF0345102@dcex.intranet.euscorp.com"
 type="cite">
  <pre wrap="">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
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   <a class="moz-txt-link-freetext"
href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>



  </pre>
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cat5 cables are ok if you use straight cables.
crossed cables are different as ethernet signals use other pin layout than e1.
and beside the 'official' e1 crossed, there seems to be other layouts.
this has been discussed here, so browse the archives.
(my pc gives me headaches now, otherwise i would have provided you some urls)

regards

t. jacobson

---------- Initial header -----------
>From      : asterisk-users-bounces@lists.digium.com
To          : asterisk-users@lists.digium.com
CC          : 
Date      : Sun, 18 Mar 2007 18:42:31 -0400
Subject : [asterisk-users] T1 cable for Digium T1/E1 Cards
> Is there any technical difference between a T1 cable and a cat5e patch
> cable as far as using them with Digium T1/E1 cards? C
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