Connectivity Rules; 1000Base-T Cable Requirements; 1000 Mbps Gigabit Ethernet Collision Domain; Table 4: Maximum 1000Base-T Gigabit Ethernet Cable Length - SMC Networks SMCGS10P-SMART Installation Manual

| Making Network Connections
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HAPTER

Connectivity Rules

length for fiber optic cable depend on the fiber type as listed under
Gigabit Ethernet Collision Domain" on page
Collision Domain" on page
C
ONNECTIVITY
When adding hubs (repeaters) to your network, please follow the connectivity
rules listed in the manuals for these products. However, note that because
switches break up the path for connected devices into separate collision
domains, you should not include the switch or connected cabling in your
calculations for cascade length involving other devices.
1000BASE-T C
All Category 5 UTP cables that are used for 100BASE-TX connections should also
work for 1000BASE-T, providing that all four wire pairs are connected. However,
it is recommended that for all critical connections, or any new cable installations,
Category 5e (enhanced Category 5) or Category 6 cable should be used. The
Category 5e and 6 specifications include test parameters that are only
recommendations for Category 5. Therefore, the first step in preparing existing
Category 5 cabling for running 1000BASE-T is a simple test of the cable
installation to be sure that it complies with the IEEE 802.3-2005 standards.
1000 M G
BPS

Table 4: Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type
Category 5, 5e, or 6 100-ohm UTP or STP

Table 5: Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths

Fiber Size
62.5/125 micron
multimode fiber
50.
R
ULES
R
ABLE EQUIREMENTS
E
IGABIT THERNET
Fiber Bandwidth
160 MHz/km
200 MHz/km
49. and "100 Mbps Fast Ethernet
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OLLISION OMAIN
Maximum Cable Length
100 m (328 ft)
Maximum Cable Length
2-220 m (7-722 ft)
2-275 m (7-902 ft)
– 49 –
"1000 Mbps
Connector
RJ-45
Connector
LC
LC