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Article #75

Telebit T2500 modem

#75
From: David Dix
Date: Thu, 01 Oct 1992 03:07
29 lines
1800 bytes
Over the last 4 weeks I have obtained a few Telebit modems, models T2000 and
T2500 types. The T2000 is a Trailblazer+ PEP type modem but the T2500 is
supposed to support PEP and V32.
The only manuals I managed to get are T2000 specific.
These T2500s seem to have only been used in PEP mode as they behave
identically to the T2000 in that they answer with PEP tones then step to
2400 baud v22bis answer tones. I cannot get any of the T2500s to respond to
v32 tones.
I know the solution is to get a T2500 manual and I have sent to Telebit USA
for one but that was near 3 weeks ago and I'm getting impatient.

Question is how do I enable the v32 answer mode on the T2500. What are the
registers that control v32?
Better still what are the complete set of register settings so that the T2500
will recognise PEP _and_ v32.
The ideal situation would be to have the PEP tones answer first, followed by
v32, then v22bis, v22 etc..
Also does the T2500 support MNP?, the T2000 supports up to MNP3 but does the
T2500 go to MNP4, MNP5 or higher?

Any help gratefully appreciated :-)

                                                               *
dgd@kcbbs.gen.nz (David Dix), Fidonet 3:772/90.
ZL1UZC (bbs on 144.75 Pac Comm 1200)                     k *      *
Kappa Crucis Unix BBS, Auckland, NEW ZEALAND.                   .
Ph.9817-3725/3714/5569 v32/v42bis/MNP5
   9817-3094/8424 v32bis/v42bis/MNP5                          *
   9817-3324/3393 v22bis/PEP/MNP3              
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Subject: Telebit T2500 modem
Message-ID: <10092274.11256.28816@kcbbs.gen.nz>
From: dgd@kcbbs.gen.nz (David Dix)
Date: 1 Oct 92 03:07:36 GMT
Organization: Kappa Crucis Unix BBS, Auckland, NZ
Lines: 30