Mailing List Archive: T1 questions..

Hi Wayne,

It is not clear from your querry about the type of channelised DS3
interface you are talking about.
Juniper has two different kind of channelised DS3:
1. CT3/MCDS3 (nxDS0) interface
2. CHDS3 IQ interface (Also called Q-PIC).

I shall be able to explain loop codes for remote loopback (fdl/payload)
thereafter.

Thanks,
KK

Wayne E. Bouchard wrote:

>Hi,
>
>pardon the basic question but I've looked around extensively and have not
>been able to find an answer.
>
>I've got a channelized DS3 and I'd like to be able to send loop codes to
>the NIU and CSU/DSU but so far can't discover how. I've ran across
>"test int fdl-line/payload-loop ansi/belcore" (in 5.6r2.4) but I can't
>find what device this is trying to loop nor can I get a response out of
>a known functional circuit.
>
>So to state it succinctly, how does one issue a loop up for an NIU and
>how does one do this for a CSU? Am I missing something obvious?
>
>Thanks..
>
>-Wayne
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>
>