12.6 Dedicated Data Home Networks

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For those who are able to install their own dedicated LAN wiring or pay others to do it, and are willing to be confined to the few sites where the LAN connectors are located, the ultimate in performance and reliability is available.

The principal LAN specifications are listed in the following table:

Standard Name	Gross Bit Rate	Wire Distance
IEEE 802.3	10 Mb/s	10 BASE-T, 100 meters of CAT3 wire
IEEE 802.3v	100 Mb/s	100 BASE-T, 100 meters of CAT5 wire
IEEE 802.3z	1 Gb/s	1000 BASE-T, 100 meters of CAT5 wire
IEEE 802.ae	10 Gb/s	Fiber only

Further information on LANs may be found as www.uts.utexas.edu/ethernet/ethernet or www.10gea.org.

The following are not considered to be LANs, but the are used to interconnect equipment via short connectorized jumper cables.

Specification Name	Gross Bit Rate	Wire Distance
IEEE 1394 [4]	400 Mb/s	4.5 meters per hop
USB 1.1	12 Mb/s	5 meters
USB 2.0	480 Mb/s	5 meters
Fast SCSI	160 Mb/s	about 2 meters
RS 232	115 kb/s	4 meters
Parallel bus	920 kb/s	about 3 meters

^[4] IEEE 1394 is also known as FireWire; 1.6 Gb/s expected for a further version of IEEE 1394.

Further information on USB is available at www.usb.org.

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