Serial, RS485: Difference between revisions
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==Overview== | ==Overview== | ||
RS-485 is similar to rs424 where it is balanced pair communications in order to archive long distances with minimal or no noise introduced into the data. | |||
EIA-485 only specifies electrical characteristics of the driver and the receiver. It does not specify or recommend any data protocol. EIA-485 enables the configuration of inexpensive local networks and multidrop communications links. It offers high data transmission speeds (35 Mbit/s up to 10 m and 100 kbit/s at 1200 m). Since it uses a differential balanced line over twisted pair (like EIA-422), it can span relatively large distances (up to 4000 feet or just over 1200 metres). | EIA-485 only specifies electrical characteristics of the driver and the receiver. It does not specify or recommend any data protocol. EIA-485 enables the configuration of inexpensive local networks and multidrop communications links. It offers high data transmission speeds (35 Mbit/s up to 10 m and 100 kbit/s at 1200 m). Since it uses a differential balanced line over twisted pair (like EIA-422), it can span relatively large distances (up to 4000 feet or just over 1200 metres). | ||
==External links== | ==External links== | ||
*[http://en.wikipedia.org/wiki/EIA-485 EIA-485 From Wikipedia] | *[http://en.wikipedia.org/wiki/EIA-485 EIA-485 From Wikipedia] | ||
*[http://www.lammertbies.nl/comm/info/RS-485.html Introduction to RS485] | *[http://www.lammertbies.nl/comm/info/RS-485.html Introduction to RS485] | ||
Revision as of 14:57, 17 March 2009
Overview
RS-485 is similar to rs424 where it is balanced pair communications in order to archive long distances with minimal or no noise introduced into the data.
EIA-485 only specifies electrical characteristics of the driver and the receiver. It does not specify or recommend any data protocol. EIA-485 enables the configuration of inexpensive local networks and multidrop communications links. It offers high data transmission speeds (35 Mbit/s up to 10 m and 100 kbit/s at 1200 m). Since it uses a differential balanced line over twisted pair (like EIA-422), it can span relatively large distances (up to 4000 feet or just over 1200 metres).