[29402] in North American Network Operators' Group
DACS
daemon@ATHENA.MIT.EDU (Bob Biver)
Wed Jun 21 11:53:36 2000
Message-ID: <20000621154958.41094.qmail@hotmail.com>
From: "Bob Biver" <bbiver@hotmail.com>
To: Mufti.Ahmed@reuters.com
Cc: nanog@merit.edu
Date: Wed, 21 Jun 2000 08:49:58 PDT
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Errors-To: owner-nanog-outgoing@merit.edu
Digital Access and Cross Connect System. A TSI switch that
switches DS-0 channels among DS-1 data streams. Computer controlled and
designed for keyboard
entry as opposed to automatic switching. There are many uses,
including semi-automatic test boards, digital circuit concentration, trunk
switching, and alternate
routing. The term "DACS" was extended for DS-0/ DS-1 switching but
has been applied to DS-1/ DS-3 switching. Many large "DACS" units include
combined
switching systems that allow DS-0 switching among DS-3s, always
with demultiplexing of the DS-3 data streams. IXC and LEC carriers offer
partitioned DACS service
under customer control, which allows the customer to control a
Virtual Private Network (VPN) within the carrier's network.
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