Maximale lengte serieele kabel?

[Verwijderd]

Hoe lang is de maximale lengte van een serieele kabel eigenlijk ivm verlies van data enz. ?

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ik heb er ooit 1 gebruikt van 12 meter zonder problemen....

[Super_ik]

zelf al gezocht?
geloof t niet he
gewoon de got search zeg

[ Voor 7% gewijzigd door Super_ik op 28-03-2003 09:49 ]

[Verwijderd]

Ja heb nu wel gevonden maar toen ik straks zocht kon ik niks vinden

meer als 15 meter skiet dus nie op kom ik achter Thnx mensen

[joosd]

"blackbox" adapters ertussen zetten!!!

[Super_ik]

joosd schreef op 28 March 2003 @ 09:54:
"blackbox" adapters ertussen zetten!!!

kijk, das teminste duidelijk

[ Voor 5% gewijzigd door Super_ik op 28-03-2003 10:09 ]

[EXX]

De maximale lengte hangt af van de baudrate. Hoe lager de baudrate, hoe langer je de kabel kan maken. Ik heb dit trouwens gevonden op http://www.sangoma.com/signal.htm

The standards for RS-232 and similar interfaces usually restrict RS-232 to 20kbps or less and line lengths of 15m (50 ft) or less. These restrictions are mostly throwbacks to the days when 20kbps was considered a very high line speed, and cables were thick, with high capacitance.

However, in practice, RS-232 is far more robust than the traditional specified limits of 20kbps over a 15m line would imply. Most 56kbps DSUs are supplied with both V.35 and RS-232 ports because RS-232 is perfectly adequate at speeds up to 200kbps. You may remember the "zero slot LANs" that were popular a few years ago, using RS-232 ports on PCs running at 115kbps. At Sangoma we have successfully used RS-232 (albeit on short cables) at line speeds of over 1.6Mbps.

The 15m limitation for cable length can be stretched to about 30m for ordinary cable, if well screened and grounded, and about 100m if the cable is low capacitance as well. Our standard test cable at Sangoma is an interconnected run of round and flat cable, about 25M in length, with no screening at all. We run error free on this cabling collection at up to 112kbps.