[asterisk-users] Using a Loopback Plug for an RJ-45 EthernetInterface for testing a Digium Card

[Jose P. Espinal]

Thank you very much for your replies!,

And thanks Alexander for the T1 loopback pins schema :)


Alexander Lopez wrote:
> It will go Green if a PROPER loopback plug is inserted.
>
> Pins 1 and 2 shorted to 4 ad 5
>
> Pin 1 to 4
> Pin 2 to 5
>
> Leave the others open...
>
>
>   
>> -----Original Message-----
>> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
>> bounces at lists.digium.com] On Behalf Of Jay R. Ashworth
>> Sent: Saturday, May 17, 2008 6:02 PM
>> To: asterisk-users at lists.digium.com
>> Subject: Re: [asterisk-users] Using a Loopback Plug for an RJ-45
>> EthernetInterface for testing a Digium Card
>>
>> On Sat, May 17, 2008 at 05:50:46PM -0400, Jose P. Espinal wrote:
>>     
>>> Someone told me about using a Loopback plug for RJ-45 for testing if
>>>       
> a
>   
>>> Digium Card gave him 'green' Alarm (for testing if the card had been
>>> damaged by  a strange voltage surge); would this have some bad side
>>>       
>> effect?
>>
>> Well, it's actually probably an RJ-48X interface, but who's counting.
>>
>> If your question, though, is "would plugging a loopback-wired 8p8c
>>     
> modular
>   
>> plug into the jack on the back of a T-1 card cause it any damage in
>> itself?", I can't imagine the answer would be "yes", no.
>>
>> If you loop it and it stays in Red alarm, it's probably broken.
>>
>> I can't speak to exactly what the alarm status stuff does if the port
>> you're looping expects to have a PRI plugged into it: I would expect
>> "Green, but no actual traffic", but I could be wrong, I'm a bit new on
>> that front.
>>
>> Cheers,
>> -- jra
>> --
>> Jay R. Ashworth                   Baylink
>> jra at baylink.com
>> Designer                     The Things I Think
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