[asterisk-users] E1 w/ TE420B EC

[Michel Verbraak]

trebaum schreef:
> I keep getting a red alarm when trying to setup asterisk to use my
> TE420B EC.  I only have a blank context setup in my extensions.conf as
> I haven't started to config that until I can clear this red alarm.  I
> don't have physical access to the server, so I can't go reseat the
> modules/card/ethernet cable, though I have hands on location that have
> done this a couple times already.  Please help.  I'm quite frustrated
> at this point.  Thank you in advance for any help.
>
> */etc/dahdi/system.conf*
> # Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" (MASTER) 
> span=1,1,0,ccs,hdb3,crc4
> bchan=1-15,17-31
> dchan=16
> echocanceller=mg2,1-15,17-31
>
> # Global data
>
> loadzone        = nl
> defaultzone     = nl
>
>
> */etc/asterisk/chan_dahdi.conf*
> [trunkgroups]
>
> [channels]
> ; Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" (MASTER)
> group=1
> context=frompstn
> switchtype = euroisdn
> signalling = pri_cpe
> channel => 1-15,17-31
> context = default
>
>
> *cat /proc/dahdi/1*
> Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" (MASTER) HDB3/CCS/CRC4 RED
>
>            1 TE4/0/1/1 Clear (In use) RED(SWEC: MG2) 
>            2 TE4/0/1/2 Clear (In use) RED(SWEC: MG2) 
>            3 TE4/0/1/3 Clear (In use) RED(SWEC: MG2) 
>            4 TE4/0/1/4 Clear (In use) RED(SWEC: MG2) 
>            5 TE4/0/1/5 Clear (In use) RED(SWEC: MG2) 
>            6 TE4/0/1/6 Clear (In use) RED(SWEC: MG2) 
>            7 TE4/0/1/7 Clear (In use) RED(SWEC: MG2) 
>            8 TE4/0/1/8 Clear (In use) RED(SWEC: MG2) 
>            9 TE4/0/1/9 Clear (In use) RED(SWEC: MG2) 
>           10 TE4/0/1/10 Clear (In use) RED(SWEC: MG2) 
>           11 TE4/0/1/11 Clear (In use) RED(SWEC: MG2) 
>           12 TE4/0/1/12 Clear (In use) RED(SWEC: MG2) 
>           13 TE4/0/1/13 Clear (In use) RED(SWEC: MG2) 
>           14 TE4/0/1/14 Clear (In use) RED(SWEC: MG2) 
>           15 TE4/0/1/15 Clear (In use) RED(SWEC: MG2) 
>           16 TE4/0/1/16 HDLCFCS (In use) RED
>           17 TE4/0/1/17 Clear (In use) RED(SWEC: MG2) 
>           18 TE4/0/1/18 Clear (In use) RED(SWEC: MG2) 
>           19 TE4/0/1/19 Clear (In use) RED(SWEC: MG2) 
>           20 TE4/0/1/20 Clear (In use) RED(SWEC: MG2) 
>           21 TE4/0/1/21 Clear (In use) RED(SWEC: MG2) 
>           22 TE4/0/1/22 Clear (In use) RED(SWEC: MG2) 
>           23 TE4/0/1/23 Clear (In use) RED(SWEC: MG2) 
>           24 TE4/0/1/24 Clear (In use) RED(SWEC: MG2) 
>           25 TE4/0/1/25 Clear (In use) RED(SWEC: MG2) 
>           26 TE4/0/1/26 Clear (In use) RED(SWEC: MG2) 
>           27 TE4/0/1/27 Clear (In use) RED(SWEC: MG2) 
>           28 TE4/0/1/28 Clear (In use) RED(SWEC: MG2) 
>           29 TE4/0/1/29 Clear (In use) RED(SWEC: MG2) 
>           30 TE4/0/1/30 Clear (In use) RED(SWEC: MG2) 
>           31 TE4/0/1/31 Clear (In use) RED(SWEC: MG2) 
>
> ~T
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As I see you have specified nl as defaultzone so I expect that you are
using a ISDN-30/15 line from provider KPN in the Netherlands.
If so then remove the crc4 option from the span line in
/etc/dahdi/system.conf.

*/etc/dahdi/system.conf*
# Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" (MASTER) 
span=1,1,0,ccs,hdb3
bchan=1-15,17-31
dchan=16
echocanceller=mg2,1-15,17-31

# Global data

loadzone        = nl
defaultzone     = nl

KPN is not using the crc4 checksum and therefore the card is not getting
the wrong checksum on the lines and so they get a red alarm status.
After the change reload dahdi and your lines should change colours.

If this is working for you please answer to the mailing list so people
in the future will find it. The next time please specify the type of
telephoneline and provider.

Regards,

Michel
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