[Asterisk-Users] Results of an incorrect crossover pinout??

[Steve Totaro]

I bet it's the crack ;)

How could you have a pinout listed first?  If the wire on one side of the
cable is going from pin one to pin four on the other side and two is going
to five on the other side then its correct and complete.  I never understood
why the second set of numbers.

1-4
2-5

Thats it.


----- Original Message ----- 
From: "Geoff Manning" <gmanning at zoom.com>
To: "Asterisk Users (E-mail)" <asterisk-users at lists.digium.com>
Sent: Thursday, October 06, 2005 1:07 PM
Subject: [Asterisk-Users] Results of an incorrect crossover pinout??


> Say I had a crossover cable that connected a Mitel SX200 to a TE110P and
the
> pinout was done as such:
>
> 1 - 4
> 2 - 5
> 5 - 1
> 4 - 2
>
> (the 5 and 4 are transposed on the left side)
>
> Instead of the proper way of:
>
> 1 - 4
> 2 - 5
> 4 - 1
> 5 - 2
>
> What would the results be? We have had the former as our cabling for a few
> months and the connection has been fine. Slip errors here and there. But
we
> have had major issues the last few days where there were excessive slip
> errors culminating in the Mitel taking it's T1 card offline.
>
> 1) Could the pinouts I have been using have actually worked? Or am I
smoking
> crack?
>
> 2) Could that have been the source of my problem? If so why didn't it
> surface earlier?
>
> We put a new cable in place today so only time will tell if it fixes it
(it
> seems to have major alarms on the Mitel every 12 hours or so). I'm just
> curious.
>
> Thanks,
> Geoff
>
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