| slovo | definícia |
rs-422
(foldoc) | EIA-422
RS-422
(Formerly "RS-422") An EIA
serial line standard which specifies 4-wire,
full-duplex, differential line, multi-drop
communications. The mechanical connections for this interface
are specified by EIA-449. The maximum cable length is
1200m. Maximum data rates are 10Mbps at 1.2m or 100Kbps at
1200m. EIA-422 cannot implement a truly multi-point
communications network (such as with EIA-485), although only
one driver can be connected to up to ten receivers. The best
use of EIA-422 is probably in EIA-232 extension cords.
{Comparing EIA-422, 423, 449 to RS-232-C
(http://rad.com/networks/1995/rs232/rs449.htm)}. {Details
on RS-232, 422, 423 and 485
(http://rs485.com/rs485spec.html)}.
(2002-10-05)
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