Re: (PM) T1 card sensitivity? (fwd)

MegaZone (megazone@megazone.org)
Mon, 22 Feb 1999 00:50:08 -0800 (PST)

Once upon a time Dave Close shaped the electrons to say...
>Line0 was certainly in use. But it was a PRI from a different telco
>than the frame-relay on line1. So that doesn't explain it to me.

Yes it does - telcos use a universal timing source. Clock from one will
work with the other unless one is broken. There is also some tolerance
for jitter in the network.

>Do you mean to imply that line0 MUST generate it's own clock, that
>it CAN'T use network timing?

No, in fact line0 and line1 CANNOT generate their own timing. Line0
gets timing from the network, line1 clocks on line0.

-MZ

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