FAST ETHERNET FIBER EXTENDERS
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3. Connectors & Cables
3.1 100BaseTx RJ45 Connectors
Two RJ45 connectors are provided on the LCL114A for 100BaseTx connection.
One is a standard straight-through MDI jack labelled “II” and the other is the MDI-
X jack labelled “X” which provides an internal crossover function.
MDI Jack
MDI-X Jack
12V 800mA
Link
Rx
II
X
Figure 2: MDI/MDI-X Jack
RJ45 Pin
MDI-X Jack
MDI Jack
1
Rx+
Tx+
2
Rx-
Tx-
3
Tx+
Rx+
6
Tx-
Rx-
Only one jack can be selected for the 100BaseTx interface. This design allows
you to simplify connections to any remote device using a standard straight-
through UTP cable without the need for a crossover cable. Just make sure the
“X-to-II” connection rule is followed.
3.2 100BaseTx UTP Cable
Cable: Category 5 UTP
Maximum Cable Distance: 100 meters (328 feet)
3.3 Fiber Optic Connectors
Two fiber optic connectors are provided for fiber optic cable connection. One is
labelled “Tx” for transmitting operation and the other is labelled “Rx” for receiving
operation.
