North American Network Operators Group

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Re: Bell Atlantic DACS failure 280 T3s

  • From: Travis Pugh
  • Date: Tue May 16 16:59:21 2000

I'm curious about BA DACS.  I don't know if this is standard, but they
are the only telco who has also told me "we put a loop up on the DACS,
but sometimes it doesn't work ... so don't assume that it is a valid
test."  And I have witnessed that same happening.  If you can't create a
simple maintenance loop on BA's DACS, their choice of vendors does seem


On 16 May 2000, Sean Donelan wrote:

> Bell Atlantic lost another DACS yesterday taking out 280 T3s for 3-1/2 hours
> in the northeastern corridor and New York City.
> I'm not a transmission person, but what is the problem with DACS?  Why
> do these "highly reliable" systems fail in such catastrophic ways?