From: Mas Kato (loomis_towcar@xxxxxxxxxxxxxx)
Date: Thu Oct 04 2001 - 23:17:12 GMT-3
[demime could not interpret encoding binary - treating as plain text]
Theoretically, the max distance with RS-232 is a function of the cable's capaci
tance. The budget is 2500 pF for a 20 Kbps signaling rate.
Back in ancient times, typical 'datacomm' cabling exhibited something like 50 p
F/ft, so this is where the standard '50 foot' answer comes from. Nowadays, I th
ink even half-decent cat5 cabling exhibits something less than 15 pF/ft, so aga
in theoretically, you should be able to get out past 165 feet or so @ 19.2 Kbps
. If you halve the speed to 9600 bps, the max distance should go up by somethin
g like a factor of 4 to 10!
Mas
https://ecardfile.com/id/mkato
> "Donald B Johnson jr" <dbjohnson@adelphia.net> "Groupstudy" <ccielab@groupstu
dy.com> Is there a limitation on roll cable.Date: Thu, 4 Oct 2001 10:51:57 -070
0
>Reply-To: "Donald B Johnson jr" <dbjohnson@adelphia.net>
>
>Is there a distance limitation on a roll cable, or would you follow standard
>Cat 5 rules?
>I cut one about 110' to reach my laptop downstairs and it worked fine. now I
>can access my lab anywhere in the house. Just when you thought the wife
>couldn't love you more.
>Don
>**Please read:http://www.groupstudy.com/list/posting.html
------------------------------------------------------------
Speed Racer's Official Virtual Pit Stop.
http://www.speedracerdsl.com/speedracer/
Having trouble posting? Read:
http://www.groupstudy.com/list/posting.html
This archive was generated by hypermail 2.1.4 : Thu Jun 20 2002 - 22:33:13 GMT-3