[VoiceOps] Timing slips on subrate DS1s on CT3
abalashov at evaristesys.com
Sat Mar 8 10:23:41 EST 2014
On 03/08/2014 10:21 AM, Jared Smith wrote:
> On Sat, Mar 8, 2014 at 12:42 AM, Alex Balashov
> <abalashov at evaristesys.com <mailto:abalashov at evaristesys.com>> wrote:
> The T3's timing is logically independent of the subrate channels.
> The T3 is configured to take clock from the line. But the timing on
> the subrate DS1s should be identical, since they're all on the same
> DS3, right?
> From my understanding, not necessarily. I remember years ago having a
> DS3 with the individual DS1s connected to three or four different telcos
> (we were shopping around at the time). The DS1s from one upstream telco
> had slightly different timing than a DS1 from another telco.
Oh, yeah--well, that makes sense. I meant if all the channels on the
DS3, and the DS3 itself, is coming from the same network element on the
carrier side. Presumably that box has a global timing signature for
everything it puts out.
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Decatur, GA 30030
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
More information about the VoiceOps