[asterisk-users] TE405P intermittent yellow alarm

[Richard Lyman]

a yellow alarm should mean there is a signal/encoding issue.
we used to see this on older gear when a single segment in the Rx leg 
would flip from SF to ESF.
which means the old gear wanted SF, but all the newer telco gear 
'defaults' to ESF nowdays, so there would be momentary yellow alarms as 
the gear in the middle flipped back to SF.

a red would be a loss of signal.

as asterisk views them...

yellow = remote alarm indication
red = loss of signal


Richard van der Hoff wrote:
> Steve Totaro wrote:
>   
>> Richard van der Hoff wrote:
>>     
>  >> [intermittent yellow alarm]
>   
>>> At this point, I'd really like to know what a yellow alarm actually
>>> means. I've read that it indicates that that the other end of the E1 is
>>> in an alarm condition: however BT's terminating unit seems quite happy
>>> with no alarm conditions at all.
>>>
>>>       
>> Check your cabling.  Replace it with new stuff.  Re-punch everything. 
>>
>> It is obviously somewhere in the line.  If the above does not fix it, 
>> maybe you can get a lucky and get a good tech out that will stick around 
>> to see the issue.
>>     
>
> The only bit of cable I own here is the 2m length of cat-5 between the 
> te405P and BT's line terminating unit. And yes, I've replaced that about 
> 5 times now...
>
> Thanks for your help, but again I'd like to ask: what does a yellow 
> alarm actually mean? From the driver source code I can see it is set 
> when the FRS0 register has bit 4 set - but that doesn't help a lot...
>
> Regards
>
> Richard
>
>