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Category 5 cabling for running 1000BASE-T is a simple test of the cable
installation to be sure that it complies with the IEEE 802.3ab standards.
1000 Mbps Gigabit Ethernet Collision Domain
Table 4-1. Maximum 1000BASE-T Gigabit Ethernet Cable Length
Cable Type Maximum Cable Length Connector
Category 5, 5e, or 6 100-ohm
UTP or STP
100 m (328 ft) RJ-45
Table 4-2. Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths
Fiber Size Fiber Bandwidth Maximum
160 MHz/km 2-220 m (7-722ft) LC 62.5/125 micron multimode
fiber
200 MHz/km 2-275 m (7-902ft) LC
400 MHz/km 2-500 m (7-1641ft) LC 50/125 micron multimode
fiber
500 MHz/km 2-550 m (7-1805ft) 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-3.2miles
LC
Table 4-4. Maximum 1000BASE-LH Gigabit Ethernet Cable Length
Fiber Size Fiber Bandwidth Maximum
9/125 micron
single-mode fiber
N/A 2 m - 70 km (7
ft-43.5miles
LC
100 Mbps Fast Ethernet Collision Domain
Table 4-5. Maximum Fast Ethernet Cable Lengths
Type Cable Type Max.
100BASE TX Category 5 or
better 100
ohm UTP or STP 100
m (328 ft) RJ
45
10 Mbps Ethernet Collision Domain
Table 4-6. Maximum Ethernet Cable Length
Cable Type Maximum
Twisted Pair, Category 3 or better 100 ohm UTP 100 m (328 ft)
RJ
45
Cable Labeling and Connection Records
When planning a network installation, it is essential to label the opposing ends of