I have a timing slips errors and I can’t understand what source of the
My installation has 2 digium cards: TE420 and TE220 cards in one server.
There are 3 spans (E1) to PSTN and 3 spans to internal PBS stations –
normal installation for transit communication.
Span configuration is:
span=1,1,0,ccs,hdb3 #TE420 – first port. To PSTN.
span=2,0,0,ccs,hdb3 #TE420 – second port. To PBX.
span=3,2,0,ccs,hdb3 #TE420 – third port. To PSTN.
span=4,0,0,ccs,hdb3 #TE420 – fourth port. To PBX.
span=5,3,0,ccs,hdb3 #TE220 – first port. To PSTN.
span=6,0,0,ccs,hdb3 #TE220 – second port. To PBX.
I should to say, that PBXs are interconnected through router (doesn’t
know anything about it). So all schema looks like this:
Spans 1-5 works fine, but on span 6 (marked bold) I have rising timing
I think it’s appearing because I’m getting a primary timing source on
span 1 – first port on TE420. But TE220 doesn’t use it’s span 5 for
timing source, because it has priority 3, so it could be a sync problem.
Am I wrong?
I’m started to think about timing cable for syncing timing on first card
and second. Should I use it?
It’s a problem to bought cable in our city (Russia,Moscow). All
resellers sell only cards. Could I use floppy or IDE cable to
interconnect cards? As I see in picture of cable, it’s a direct 16 pin
Does anybody know something about timing cable for different cards? How
I can solve my problem?
Thanks for attention