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Twisted-Pair Cabling Guidelines
Each 10BASE-T or 100BASE-TX connection requires an
unshielded twisted-pair (UTP) cable with RJ-45 connectors at
both ends. For 10BASE-T connections, two pairs of 100 Ohm
Category 3, 4 or 5 cable are required. 100BASE-TX connections
require two pairs of certified Category 5 cable.
Every twisted-pair connection must have a wiring crossover to
transmit and receive data. For convenience, this crossover is
built into the 10BASE-T/100BASE-TX ports on the TigerSwitch
100 units*. Network cards do not have a built-in crossover, so
PCs can be connected to crossover ports with straight-through
cable. Hubs (and other switches) may have either crossover or
straight-through ports. For this reason, the type of cable used to
connect these devices to the TigerSwitch 100 is determined by
the port on the other device, as shown in the table below.
Crossover/Straight-Through Wiring Requirements
Warning: Do not plug a phone jack connector into an
RJ-45 port. This will damage the switch. Use only
twisted-pair cables with RJ-45 connectors that conform to
FCC standards.
* Note: Each TigerSwitch 100 unit equipped with 10BASE-T/100BASE-TX ports
will also have at least one daisy-chain port that does not have a built-in
wiring crossover.
3-11
INSTALLATION
If the TigerSwitch 100 And the port on Then use...cable
port is... the other device is
Crossover (x) Straight-through Straight-through
Crossover (x) Crossover (x) Crossover
Straight-through Straight-through Crossover
Straight-through Crossover (x) Straight-through