× Questions about B100/200/400/800 ISDN BRI Cards

B200 in NT mode and U interface

7 years 1 month ago #8227 by Ziki
Hi, I try configure openvox b200 with asterisk 1.8, libpri 1.4.12 and OpenVox version of DAHDI driver v. 2.6.1 (from http://downloads.openvox.cn/pub/drivers/dahdi-linux-complete/openvox_dahdi-linux-complete-current.tar.gz ).
My provider give me BRI ISDN line in NT mode. The line has U interface (one pair in cable).
What pinout on RJ-45 I need use for U interface with Openvox b200?
Do I need use some patches for working in NT mode?


At now I have Red or Yellow Alarm.


My config (span 2 not in use):
/etc/dahdi/system.con


span=1,0,0,ccs,ami
# termtype: nt
bchan=1-2
hardhdlc=3
echocanceller=oslec,1-2

# Span 2: B4/0/2 "B4XXP (PCI) Card 0 Span 2" AMI/CCS RED 
span=2,1,0,ccs,ami
# termtype: te
bchan=4-5
hardhdlc=6
echocanceller=oslec,4-5

# Global data

loadzone        = us
defaultzone     = us




/etc/asterisk/dahdi-channels.conf


; Span 1: B4/0/1 "B4XXP (PCI) Card 0 Span 1" (MASTER) AMI/CCS YELLOW 
group=0,11
context=from-pstn
switchtype = euroisdn
signalling = bri_net
channel => 1-2

; Span 2: B4/0/2 "B4XXP (PCI) Card 0 Span 2" AMI/CCS RED 
group=1
context=from-pstn
switchtype = euroisdn
signalling = bri_cpe_ptmp
channel => 4-5


dahdi_scan

[1]
active=yes
alarms=RED
description=B4XXP (PCI) Card 0 Span 1
name=B4/0/1
manufacturer=Digium
devicetype=OpenVox B200P
location=PCI Bus 05 Slot 01
basechan=1
totchans=3
irq=0
type=digital-NT
syncsrc=0
lbo=0 db (CSU)/0-133 feet (DSX-1)
coding_opts=B8ZS,AMI,HDB3
framing_opts=ESF,D4,CCS,CRC4
coding=AMI
framing=CCS
[2]
active=yes
alarms=RED
description=B4XXP (PCI) Card 0 Span 2
name=B4/0/2
manufacturer=Digium
devicetype=OpenVox B200P
location=PCI Bus 05 Slot 01
basechan=4
totchans=3
irq=0
type=digital-TE
syncsrc=0
lbo=0 db (CSU)/0-133 feet (DSX-1)
coding_opts=B8ZS,AMI,HDB3
framing_opts=ESF,D4,CCS,CRC4
coding=AMI
framing=CCS




dahdi show status 
Description                              Alarms  IRQ    bpviol CRC    Fra Codi Options  LBO
B4XXP (PCI) Card 0 Span 1                RED     0      0      0      CCS AMI           0 db (CSU)/0-133 feet (DSX-1)
B4XXP (PCI) Card 0 Span 2                RED     0      0      0      CCS AMI           0 db (CSU)/0-133 feet (DSX-1)
7 years 1 month ago #8228 by chunlei.yi
hi,
the B200 provides two ports of S/T BRI interface.so you need a ISDN modem to conversion the U interface to standard S/T interface(two pairs in cable), then connect to the card.you don't need any patches for working in NT mode.any questions you can contact me via msn

msn:chunlei.yi@hotmail.com
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