Slips on PRI, smeared faxes

[VoIPgirl]

I believe that I am having slips on my PRI that is causing some faxes to look smeared. I am looking at the list measurements DS1 summary. Should errored seconds equal controlled slip seconds? It doesn't seem to be on all...
Thanks for your help.

 

[VoIPgirl]

I fixed this last time by actually unplugging the PRI.

Is the specific sequence.
Disable sync
Unplug PRI
Set Sync
Enable sync
Plug back in...

I think that I may have one mixed up.

 

[YeOldPhoneGuy]

It would appear that this is unassociated but check your csu settings on the ds1 board. I have had occasions where iI was using a 120CSU but the DS1 was not programmed to reflect this.

Me

 

[nknook]

Our primary is the only one that has "clocking""

???

You've got me confused. How can you have a T1 without clocking? Isn't this one of the fundamentals on which T1/E1 works (clocking, timeslots etc). Isn't the synchronisation just a fact of assigning one of your T1/E1's as the "boss" to provide the clocking signal (ie the line from which the switch "reads" the clock, and synch's its own clock with it for other DS1's to use)?

Or does it have something to do with CSU's (in Europe, or at least NL where I live we never have a separate CSU, always the build in ones on the DS1 C.P.)?

Anyway, I've never heard of the possibility to have a E1 without clocking, which thus cannot be used as a sync source.

Enlighten me

 

[1a22ip]

I had a heated discussion about this. Some telcos charge for "clock" on the circuit. Some donot. AT&T has historically supplied "clock" on all T1's no matter what they were, ISDN, Tie or Robbed Bit. Verizon Charges for "Clock". Now what is the difference between Clocking and Timing. All T1 must be "timed" to a Clock or have it's own clock. There is the difference. Timeing is using a clock from another source and Clocking is suppling a source. In regards to syncing you cannot sync to a timed span.

That my story and I'm sticking with it.
ED

1a2 to ip I seen it all

 

[nknook]

Hi ED,

I'm not gonna start a new discussion with you, so you can stick to your story as far as I'm concerned
I think I see the difference. As it appears all providers (or at least the ones I've coped with) provide clocking over here in NL, so we never have to think about it, nor about the difference between clocking and timing. Makes life a lot easier, I can tell you.

Thanks.