Mixing circuit types on PM-3? (fwd)

MegaZone (megazone@livingston.com)
Wed, 16 Jul 1997 03:17:06 -0700 (PDT)

Once upon a time Kevin Kadow shaped the electrons to say...
>I'm particularly interested in knowning if a PM3 can mix PRI and CT1, served
>from the same switch, on a single chassis? I'd like to be able to mix

Yes, it's been done. It's also been done from different switches at the
same CO, and different COs all together.

>Livingston has said that on the dual-T1 PM3, both circuits need to be
>served from the same telco central office because problems will occur if
>the clocks on the two circuits are not in sync. But I have read here that

Clocking should be standard, and usually is. But it is *possible* for
seperated switches to get out of sync, and that could cause a problem as
the PM will clock itself internally from *one* of the connections.

But I've seen it work just fine all over the place.

So basically, it is something to be aware of, but not something I'd be
scared off by. And if you have them both coming from the same *switch*,
then the clocking is going to be identical.

-MZ

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