[asterisk-users] Description of Zaptel/DAHDI E1 alarms

[Lukas Rypl]

> Message: 18 Date: Mon, 19 Jan 2009 19:56:14 +0200 From: Tzafrir Cohen <tzafrir.cohen at xorcom.com> 
>Subject: Re: [asterisk-users] Description of Zaptel/DAHDI E1 alarms To:
asterisk-users at lists.digium.com Message-ID:
>> > On Mon, 2009-01-19 at 11:10 +0100, Lukas Rypl wrote:
>>> > >  I am missing any description of zaptel/DAHDI alarms. The TE200 series
>>> > > user manual contains only a description of LEDs states. These alarms
>>> > > states are visible in zttool/dahditool or in astersick CLI (zap show
>>> > > status) and I wonder what is the real meaning of these alarms for E1
>>> > > channel.
>> > 
>> > I can't speak for all the possible states in the T1/E1 card driver, but
>> > I can state that typically in T1s and E1s you have three different
>> > general alarm states: RED alarms, YELLOW alarms, and BLUE alarms.  (This
>> > is a brief synopsis of the information we cover in the Asterisk Advanced
>> > training class.)
> 
> [snip]
> 
>> > I hope the explanation helps.
> 
> You can also find it in the README of DAHDI:
> 
> http://docs.tzafrir.org.il/dahdi-linux/#_alarm_types
> 
> Commments would be welcomed
> 
> -- Tzafrir Cohen


 Thanks for this detailed reply, amount of information exceeded my
expectation :)

 In dahdi_tool, there are three more indicators of error:
 IRQ misses
 Bipolar violation
 CRC error

 As I understand it now, these should be error counters and they provide
additional information in case of RED alarm state.


 Regards
 Lukas Rypl