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| RS423 | |
|---|---|
| Standard | EIA RS-423 |
| Physical Media | Group of copper cables |
| Network Topology | Point-to-point, Multi-dropped |
| Maximum Devices | 10 (1 driver & 10 receivers) |
| Maximum Distance | 1200 meters (4000 feet) |
| Mode of Operation | Single-ended (unbalanced) |
| Maximum Baud Rate | Up to 100kbit/s |
| Voltage Levels | -6V to +6V (maximum) |
| Mark(1) | -4V to -6V |
| Space(0) | +4V to +6V |
| Available Signals | Tx, Rx, GND |
| Connector types | Not specified |
RS-423, also known as TIA/EIA-423, is a technical standard originated by the Electronic Industries Alliance that specifies electrical characteristics of a digital signaling circuit. Although it was originally intended as a successor to RS-232C offering greater cable lengths, it is not widely used.
RS-423 systems can transmit data on cables as long as 1,200 meters (3,900 ft).[dubious – discuss] It is closely related to RS-422, which used the same signaling systems but on a different wiring arrangement: RS-423 differed primarily in that it had a single return pin instead of one for each data pin.[1]
RS-423 specifies an unbalanced (single-ended) interface, similar to RS-232, with a single, unidirectional sending driver, and allowing for up to 10 receivers.[2] It is normally implemented in integrated circuit technology and can also be employed for the interchange of serial binary signals between DTE & DCE.
- ^ "EIA-423". foldoc.org. Retrieved 2021-07-08.
- ^ Buchanan W.J. (2004) RS-422, RS-423 and RS-485. In: The Handbook of Data Communications and Networks. Springer, Boston, MA.ISBN 978-1-4757-1067-0 page 627