About Serial Communications Computer Boards
Serial communications computer boards (serial boards, serial ports, serial cards) transmit data by transferring the bits one after the other over a single wire. Serial transmission methods can transmit much faster than parallel transmission methods, especially when the cost and complexity of parallel equipment is considered. Parallel transmission is mainly used for devices that are physically close to each other, such as within the PC itself or, with higher quality cabling, for distances up to 200 feet. Serial communications computer boards are used for longer distances. A multiport serial board (also called a multiport serial card or multiport serial adaptor) can be inserted in a PCI or ISA slot inside a computer. Each multiport serial board supports multiple serial port connectors (DB-25 or RJ-45) that are external to the computer case.
Engineering Web: Serial Communications Computer Boards - Machine Design
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Getting Connected | Machine Design The expansion card requires cable links to breakout boards because it's impractical to bring field wiring directly to or inside the computer. |
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Factory networks get ready for real time | Machine Design Brad Smith Regional Applications Specialist Delta Computer Systems Inc. Vancouver, Wash. |
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May 8, 2008 : Robots limber up; Inside the Navy's new Railgun... New Product: Embedded computer boards The low-power-consuming conga-CA embedded computer boards feature |
