Maximum Cable Lengths

Cable Types and Specifications

Cable	Type	Max. Length	Connector

10BASE-T	Cat. 3, 4, 5 100-ohm UTP	100 m (328 ft)	RJ-45

100BASE-TX	Cat. 5 100-ohm UTP	100 m (328 ft)	RJ-45

100BASE-FX	50/125 or 62.5/125 micron core multimode fiber

	Half duplex	412 m (1,351 ft.)	SC or ST

	Full duplex	2 km (1.24 miles)	SC or ST

1000BASE-SX	50/125 or 62.5/125 micron core	See the	SC or ST
	multimode fiber	1000BASE-SX table

1000BASE-LX	50/125 or 62.5/125 micron core MMF	See the	SC or ST
	or 9/125 micron core SMF	1000BASE-LX table

Maximum 1000BASE-SX Gigabit Ethernet Cable Length

Fiber Size	Fiber Bandwidth	Maximum Cable Length

62.5/125 micron MMF	160 MHz/km	7-722 ft (2-220 m)

	200 MHz/km	7-902 ft (2-275 m)

50/125 micron MMF	400 MHz/km	7-1641 ft (2-500 m)

	500 MHz/km	7-1805 ft (2-550 m)


Maximum 1000BASE-LX Gigabit Ethernet Cable Length

Fiber Size	Fiber Bandwidth	Maximum Cable Length

62.5/125 micron MMF	500 MHz/km	2-550 ft (7-1805 m)

50/125 micron MMF	400 MHz/km	2-550 ft (7-1805 m)

	500 MHz/km	2-550 ft (7-1805 m)

9/125 micron SMF	N/A	2 m - 5 km (7 - 16,404 ft)