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Knowledge Base / Hardware / How do I configure Digium's T1/E1/J1 cards?

How do I configure Digium's T1/E1/J1 cards?
Views: 10905, Votes: 4

Posted:
24 Apr, 2006 - Support D.

Updated:
14 Mar, 2008 - Support D.
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To properly configure Digium's T1/E1/J1 cards, you will need the following information from your telco or other information source:
  • line type (T1/E1/J1)
  • framing on the line (d4, esf, cas, ccs, etc.)
  • coding on the line (b8zs, hdb3, ami)
  • which side is providing the timing on the line (0 if providing timing, 1 for most other cases)
  • device type for zaptel.conf (usually e&m, or bchan and dchan)
  • timeslots and numbers of channels provided
  • line build out on the line (this value is typically 0, see sample zaptel.conf for detailed information)
  • signalling on the line (pri_net,pri_cpe,em,em_w,featd,featdmf,featdmf_ta,featb)
  • if the signalling is pri_cpe or pri_net, you will also need a switch type (national,dms100,4ess,5ess,euroisdn,ni1,qsig)
For each span on the card, do the following:
  1. Set the jumper on the card.  T1 mode for T1 and J1 lines or E1 mode for E1 lines.
  2. Ensure that loadzone and defaultzone are both set in zaptel.conf.
  3. Add a line in zaptel.conf as follows:  span=span number,timing,line build out,framing,coding (ex. "span=1,1,0,esf,b8zs")
  4. Add a line in zaptel.conf specifying your device type and associated channels (ex. "e&m=1-24" or  "bchan=1-15,17-31")
  5. If this is a PRI line, you will need another line specifying the delta channel ("dchan=16" or "dchan=24")
  6.  At the bottom of zapata.conf, add the following lines:
    • signalling=your signalling type
    • switchtype=your switch type (only for PRI lines)
    • channel=>associated channel numbers (these will be the same as the ones in step 4)
  7. Go to the command line and type "ztcfg -vvv". It will ensure that the changes make it into the system.
  8. Restart asterisk.
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