(ASCEND) Re: the E1/R2 line of TNT is unstable

[Peter Lalor <plalor@infoasis.com>]

>>My TNT has eight E1/R2 lines and two E1/PRI lines
>>I have been experienced that the several E1/R2 lines in two 8E1 card
>>went inactive (RA, YA, 1S) frequently.
>
>   We have had similar problems with T1s.  It seems the TNT is
> quite sensitive.  We have PRIs that will work fine in the Max4k
> series, but will have problems in the TNT. (DF, RA, YA, 1S, etc)
> We can put a different PRI into the same TNT port, and have it
> work fine.  However, I don't know why it would differ from one
> port to another on the same TNT.

One thing that can be an issue is clocking. When you run that many T1s into
a single chassis, you have be sure that they're all taking clocking from
the TNT except for one PRI, which the TNT takes clock from.

Search the archives for "frame slip" for the old thread.

Peter Lalor           Infoasis
plalor@infoasis.com   The San Francisco Bay Area's
415-459-7991 x102     Macintosh Internet Service Provider
415-459-7992 fax      http://www.infoasis.com/
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