C
ONNECTIVITY
R
ULES
4-7
100 Mbps Fast Ethernet Collision Domain
Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths
Fiber Size
Fiber
Bandwidth
Maximum Cable
Length
Connector
62.5/125 micron
multimode fiber
160 MHz/km
2-220 m (7-722 ft)
LC
200 MHz/km
2-275 m (7-902 ft)
LC
50/125 micron
multimode fiber
400 MHz/km
2-500 m (7-1641 ft)
LC
500 MHz/km
2-550 m (7-1805 ft)
LC
Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length
Fiber Size
Fiber
Bandwidth
Maximum Cable
Length
Connector
9/125 micron
single-mode fiber
N/A
2 m - 5 km
(7 ft - 3.2 miles)
LC
Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length
Fiber Size
Fiber
Bandwidth
Maximum Cable
Length
Connector
9/125 micron
single-mode fiber
N/A
70 - 100 km
(43.5 - 62.1 miles)
LC
* For link spans exceeding 70 km, you may need to use premium single mode fiber or
dispersion shifted single mode fiber
Table 4-5 Maximum Fast Ethernet Cable Length
Type
Cable Type
Max. Cable Length Connector
100BASE-TX Category 5 or better 100-ohm
UTP or STP
100 m (328 ft)
RJ-45
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