>From: "Wayne Kampjes" <Wayne.Kampjes@telecom.co.nz>

>At the moment marketing hype. Particularly the no jumper bit - how does
>the cable re-terminate itself to the DSLAM line card?

The marketing hype is pretty convincing though.

The way I read the blurb is that they have combined many physical layer
protocols into one. Thus a single line card in the DSLAM will support POTs,
ISDN, E1 and a few other digital access protocols.

At present a Teleco would have different termination cards for each line
discipline at the exchange and has to terminate one or two pairs on those
cards when a service is provisioned, or in the case of DSL, jumper the POTs
across to the DSLAM as well.

The concept of G.SHDSL is to have a copper pair terminate at a single card
in the DSLAM, the service is provisioned by the choice of CPE, all services
are provisioned over a DSL line.

"Would you like a primary rate or four basic rates Mr Customer" - Click -
sounds to good to be true. I assume this blurb comes from DSLAM
manufacturers :)

Nice in theory, if you have no existing exchange infrastucture and a spare
unbundled local loop lying around.

Cheers

BG.

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Received on Tue Oct 2 20:02:53 2001