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RS-422 systems can transmit data at rates as high as 10 Mbit/s, or may be sent on cables as long as 1,200 meters (3,900 ft) at lower rates. It is closely related to RS-423, which uses the same signaling systems but on a different wiring arrangement. RS-422 specifies differential signaling, with every data line paired with a dedicated return ...
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Synchronous Serial Interface (SSI) is a widely used serial interface standard for industrial applications between a master (e.g. controller) and a slave (e.g. sensor). SSI is based on RS-422 [1] standards and has a high protocol efficiency in addition to its implementation over various hardware platforms, making it very popular among sensor manufacturers.
In the new millennium, RS-422 is slowly phased out in favor of Ethernet for control functions. However its simple way to perform troubleshooting means it will stay around for a long time. In broadcast automation the Video Disk Control Protocol (VDCP) use the 9-Pin Protocol to playout broadcast programming schedules.
VDCP is a serial communications protocol based on RS-422. It is derived from the Sony 9-Pin Protocol, an industry-standard protocol for control of professional broadcast VTRs that is used in online editing. Full details of the protocol are available from Imagine Communications who, as Harris Broadcast, acquired Louth in 2000.
The isolated version has opto-couplers and/or surge suppressors to prevent static electricity or other high-voltage surges to enter the data lines thereby preventing data loss and damage to the adapter and connected serial device. The non-isolated version has no protection against static electricity or voltage surges, which is why this version ...
Jason Day hits out of a green-side bunker on the 8th hole during the first round of the U.S. Open at Los Angeles Country Club. Pin placement green approaches.
English: Data Rate / Line Length chart from RS-422 Annex A. (This chart is not in RS-485). This chart is not an absolute limit, but a conservative guide based on empirical data of 24AWG telephone cable. Cable length may be extended from this chart.