EAC - Voluntary Voting System Guidelines

Name : | James Johnson
Organization : | N/A
Post Date : | 9/30/2005
Section Comments
Section : | 6.7
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Comment : | IrDA-Data IrDA-Data is designed for two-way point-to-point communication at speeds of up to 4 megabits per second (Mbps). IrDA Data can be used for communication between palm computers, digital cameras, cellular phones, and other devices. IrDA Data includes the following protocols: • IrDA Data PHY (physical) layer: IrDA-Data-PHY provides bidirectional error-correcting operation from 9600 bits per second (bps) up to 4 Mbps over distances of at least 3.3 feet (1 meter). Specifically, asynchronous serial transmission is supported between 9600 bps and 115.2 kilobits per second (Kbps), synchronous serial transmission at 1.152 Mbps, and synchronous communication at 4 Mbps. • IrDA Data Infrared Link Access Protocol (IrLAP): IrLAP is a serial link protocol adapted from the High-level Data Link Control (HDLC) protocol. IrLAP provides a single serial connection between two IrDA devices and manages the device-to-device discovery, connection, and reliable data transfer functions. • IrDA Data Infrared Link Management Protocol (IrLMP): IrLMP is used for link control and multiplexing of IrDA devices. IrLMP allows multiple IrDA devices to communicate over a single infrared link and provides for protocol and service discovery through the Information Access Service (IAS). Acronym Meaning Data Rate SIR Slow infrared 9.6 kbps to 115.2 kbps MIR Medium infrared 576 kbps and 1152 kbps IR Fast infrared 4 Mbps VFIR Very fast infrared 16 Mbps [Statements submitted to NIST Technical Guidelines Development Committee]