Curious ex-BT modems

From: Witchy <witchy_at_binarydinosaurs.co.uk>
Date: Thu Dec 25 18:52:52 2003

> -----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 - 18:52:52 GMT

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