HP HSC/I 1000Base-SX, I 1000Base-T manual Cabling Requirements, Back-to-Back Connection

Hardware Reference Information

Cabling Requirements

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:

Table C-3	Cabling Requirements for 1000Base-SX
Description		Modal Bandwidth	Operating Distance
(850nm short-wave laser)
62.5 micron MMF		160 (MHz * km)	2 to 220 meters
(multimode fibre)
		200 (MHz * km)	2 to 275 meters
50 micron MMF		400 (MHz * km)	2 to 500 meters
(multimode fibre)
		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

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.

Appendix C 65