Curious ex-BT modems

From: Geoffrey Thomas <geoffreythomas_at_onetel.net.uk>
Date: Thu Dec 25 19:02:27 2003

Something tells me they are used on a fixed line basis, I think I might have
one in the loft(very full) somewhere. I'll have a look when I'm sober.

Geoff.

----- Original Message -----
From: "Witchy" <witchy_at_binarydinosaurs.co.uk>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk_at_classiccmp.org>
Sent: Friday, December 26, 2003 12:52 AM
Subject: RE: Curious ex-BT modems


> > -----Original Message-----
> > From: cctalk-bounces_at_classiccmp.org
> > [mailto:cctalk-bounces_at_classiccmp.org]On Behalf Of Jules Richardson
> > Sent: 25 December 2003 12:35
> > To: cctalk_at_classiccmp.org
> > Subject: Curious ex-BT modems
> >
> >
> > Merry Christmas to all!
>
> Yarr :)
>
> > I remember I never got one of these to talk to a remote modem of any
> > type. I'm wondering if they're supposed to be used in pairs (or talk to
> > some specific remote equipment that I don't have) and use some sort of
> > non-standard data compression, or even encryption.
> >
> > Any ideas anyone? Anybody know of any UK telecoms lists where there may
> > be people who can help?
>
> >From your description I can only guess they're leased-line modems for use
> with muxes at each end for remote terminal use, though I remember we used
to
> have 'em on either end of a fixed link that was used for X25 comms with
the
> good ol' DEMSB X25 gateway......bits of my brain are telling me I used to
> get DDCMP over a pair of them with asynch adapters 'cos they were
> synchronous modems, but hell, I should be in bed :)
>
> cya
>
> w
>
Received on Thu Dec 25 2003 - 19:02:27 GMT