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RapidIO {An LVDS bus for chip-to-chip and board-to-board communications up to 10Gbps [8-bit or 16-bit Input and Output].}

Reduced Size Multimedia Card {RS-MMC is a flash memory card, the smaller version of MMC. The device size is 24 mm x 16 mm x 1.4 mm}

RS-232 Bus {RS232 Copper wire interface}

RS-366 Bus {RS366 Copper wire interface}

RS-422/RS485 Bus {EIA422/EIA485 Bus Copper wire interface}

RS-423 Bus {EIA423 Bus Standard, Copper wire interface}

RS-449 Cable Buses {EIA-530 and 449 Buses, Copper wire interface}

RS-530 Cable Bus {EIA-530 and 449 Buses Description}

RS-568 Cable Bus {Building Telecommunications Wiring Standard}

RS-644 Bus {Low Voltage Differential Signaling [LVDS] Wiring Standard. ANSI/TIA/EIA-644 only defines the Electrical layer, no pin-out provided by this specification}

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Next Section Electronic Buses 'S'

An alphabetic listing of released interface buses. Primarily the links point to pages that describe the physical and electrical interfaces. However; Interface Bus Protocols are not addressed.