Serial, RS485: Difference between revisions
Jump to navigation
Jump to search
Wvengineer (talk | contribs) |
Wvengineer (talk | contribs) |
||
| Line 7: | Line 7: | ||
==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 14:55, 17 March 2009
Overview
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).