[Asterisk-Users] E1 + T1 timing in one box

[Mark Spencer]

> Thanks! I'll set the dipswitch on the CAC to provide sync, currently the T1
> is free running, but its only been up for an hour or 3 so no slips yet.

Actually you probably want to supply the CAC with sync.

> Will excessive slips generate a yellow alarm? Then I'll know what to
> watch...

Slips generally only affect data and do not generally trigger any events.
The frequency of the slips will vary depending upon how far off the
relative clocks are of the two (not 1.544Mhz vs. 2.048Mhz, but their
respective 8khz divided clocks).  If you call out the E1 to a tone
generator that generates, say, 1571Hz signal (or some other odd ball
frequency) and you listen very very carefully, you may hear a slight tick
in the signal every so often when it slips.

Mark