DES-1008M User’s Guide
18 Making Network Connections
Cable Limitations
When connecting network devices to the Switch, you must observe some
rules on the allowable segment length and cable type to maintain networks
within the set specifications. The table below lists the allowable segment
lengths and cable types as specified by IEEE 802.3.
Port Node Maximum
Segment Length
Cable Type
Twiste
d-Pair
Ethernet
hub/Switc
h
100 meters Crossover Category
3, 4, or 5
unshielded
twisted-pair cable
or straight 100-
ohm shielded
twisted-pair cable
Twiste
d-Pair
Other
network
devices
100 meters Straight Category
3, 4, or 5
unshielded
twisted-pair cable
or straight 100-
ohm shielded
twisted-pair cable
BNC Any
network
device
185 meters RG58A/U 50-ohm
thin coaxial cable
Fiber Any
network
device
2,000 meters
62.5/125 µm
multimode fiber,
100BASE-FX uses SC
connector, 10BASE-
FL uses ST
connector
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