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echo: tech
to: Tom Walker
from: Jasen Betts
date: 2004-10-17 19:30:18
subject: 8-bit LPT cable

Hello Tom.

15 Oct 04 07:55, you wrote to Mark Lewis:

 TW> ->  TW>  I suspect you were Very Lucky. That is far beyond the
 TW> ->  TW> "Suggested length" for a Parallel cable.

 TW> -> i've done some more research and have found that it was longer than
 TW> 50feet long
 TW> -> but nothing, yet, indicating how long it actually was...
 TW> recollection says
 TW> -> 75feet or 100feet...

 TW> -> now, whether or not there were boosters in the headends of the
 TW> cable i cannot
 TW> -> say as i was not about to discect the moulded rubber/plastic ends
 TW> to find
 TW> -> out... there was no indication that there were...

 TW>  I suspect that the cable then did include Line drivers in the molded
 TW> plug.

mine didn't, and what can you run them off anyway?

if you're dealing with bundled conductors and only one earth conductor a
limit of 3m or so is understandable, but if you use twisted pairs or even
individually shielded conductors you can go much further before induced
noise
or crosstalk become problems.

Jasen




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