Computing Dictionary

EIA-485 definition

communications, standard
(Formerly "RS-485") An EIA serial line standard which specifies 2-wire, half-duplex, differential line, multi-point communications. Maximum cable length is 1200m. Maximum data rates are 10Mbps at 1.2m or 100Kbps at 1200m. EIA-485 can implement a truly multi-point communications network, and specifies up to 32 drivers and 32 receivers on a single (2-wire) bus.
Differential SCSI uses EIA-485.
Details on RS-232, 422, 423, and 485 (http://rs485.com/rs485spec.html).
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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