[asterisk-users] TE405P intermittent yellow alarm

[Matthew Fredrickson]

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...

A yellow alarm means that the other end is seeing loss of signal 
(detected a red alarm from its perspective).  When it detects LOS, it 
transmits yellow alarm to notify the other end.

-- 
Matthew Fredrickson
Software/Firmware Engineer
Digium, Inc.