The telco supplies clock if the T1 is connected to the switch (PRI,
Channelized T1). Point-to-point T's are not connected to the switch and
have no clock.
-Matt
> On Sat, 3 May 1997, Al Hopper wrote:
>
> > On a point 2 point circuit (usually) the telco does not supply clock. In
> > almost every other case the telco will supply the (sync) clock. Mr Jay is
> > indeed correct. Also the circuit pairs should be flipped somewhere in the
> > middle. Since you're seeing data the crossover must be OK.
>
> I keep getting conflicting advice on this...some say the telco provides
> clock, some say they don't. Is it possible some CSU/DSU's deal with
> incorrect settings better than others?...i.e. Say you have a PTP T1, with
> CSU/DSU's at each end set to slave/network. Will some CSU/DSU's handle
> this while others have a hard time?
>
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