Dahdi Timing Source Multiple Cards

Home » Asterisk Users » Dahdi Timing Source Multiple Cards
Asterisk Users 2 Comments

I have a box with 12 T1s (4 Te410P cards). The PSTN provider is reporting slips and ask me to update the clock source. I have my system.conf set as the following but when I run dahdi_scan only the ports on Card 1 are showing up with syncsrc=1

system.conf :

span=1,1,0,esf,b8zs

bchan=2-24

mtp2=1

span=2,2,0,esf,b8zs

bchan&-48

mtp2%

span=3,3,0,esf,b8zs

bchanI-72

span=4,4,0,esf,b8zs

bchans-96

span=5,5,0,esf,b8zs

bchan

2 thoughts on - Dahdi Timing Source Multiple Cards

  • You must make sure that for each card, the timing parameter does not exceed the number of spans on the card (unless you’re using a timing cable between cards). So you probably don’t want to have anything above a 4 for the timing parameter… I see below that you have 5-12 listed in the timing parameter for the spans on the other cards.

    You probably want something more like this:

    span=1,1,0,esf,b8zs span=2,2,0,esf,b8zs span=3,3,0,esf,b8zs span=4,4,0,esf,b8zs span=5,1,0,esf,b8zs span=6,2,0,esf,b8zs span=7,3,0,esf,b8zs span=8,4,0,esf,b8zs span=9,1,0,esf,b8zs span,2,0,esf,b8zs span,3,0,esf,b8zs span,4,0,esf,b8zs

    Hope that helps.

    Matthew Fredrickson Digium, Inc.