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Cabling Requirements
Appendix C
65
Cabling Requirements
Connectors on LAN cards adhere to appropriate standards agreed upon by various
standards bodies and are widely available. The 1000Base-SX port is compatible with the
IEEE 802.3z standard and uses a single duplex SC connector. The 1000Base-T port is
compatible with the IEEE 802.3ab standard and uses an RJ-45 connector.
Incorrectly wired or installed cabling is the most common cause of communications
problems for local area networks. HP recommends that you work with a qualified cable
installer for assistance in your cabling requirements. The following tables summarize
cabling requirements:
Back-to-Back Connection
When running 1000Base-T back-to-back at either 10 or 100 Mbps, you must use a
crossover cable configuration. At 1000 Mbps, you can use either a crossover or
straight-through cable.
Table C-3 Cabling Requirements for 1000Base-SX
Description
(850nm short-wave laser)
Modal Bandwidth Operating Distance
62.5 micron MMF
(multimode fibre)
160 (MHz * km) 2 to 220 meters
200 (MHz * km) 2 to 275 meters
50 micron MMF
(multimode fibre)
400 (MHz * km) 2 to 500 meters
500 (MHz * km) 2 to 550 meters
Table C-4 Cabling Requirements for 1000Base-T
Description Bandwidth Operating Distance
Cat 5 or Cat 5E UTP 100 MHz Up to 100 meters