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echo: tech
to: JEAN PARROT
from: KEN HRYNCHUK
date: 2004-10-08 13:27:00
subject: 8-bit LPT cable

JEAN PARROT wrote to KEN HRYNCHUK on 10-05-04 08:23:

 JP>         Let us know how you do make out.

Well, Jean, I tried this (approx. 20 foot) cable configuration (including
the 8-bit wires, of course ), which I obtained from File Maven 3.5a's
.docs:

DB25M            DB25M
-----            -----
  1 -------------  1     <-- 8-bit only
  2 ------------- 15
  3 ------------- 13
  4 ------------- 12
  5 ------------- 10
  6 ------------- 11
 10 -------------  5
 11 -------------  6
 12 -------------  4
 13 -------------  3
 14 ------------- 14     <-- 8-bit only
 15 -------------  2
 16 ------------- 16     <-- 8-bit only
 17 ------------- 17     <-- 8-bit only
 25 ------------- 25

I tried it with File Maven 3.5a, and could not get it to work in 8-bit
mode, but it worked just fine for 4-bit transfers. I also tried it with
LapLink Pro v4.0, with the same results. I tried both programs in
'straight DOS', as well as in a DOS window, and I also tried setting the
LPT ports on both machines to 'standard parallel' mode. I've triple-
checked my wiring (and, I even added my own foil shielding to the
cable, because the original shielding wouldn't fit over the new 'lump').
I've yet to try it with 'real' legacy ports, though; maybe that would
solve the mystery (?).

I'm considering trying another cable configuration, but I may not,
because it's a lot of bother, considering the speeds involved.

Oh, well; at least I have a longer 4-bit cable, now. 

   Ken

 
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