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Rev. 041008
15
CONNECTING THE UNIT
For the 100BaseFX Fiber Optic port (105FX-POE), remove the dust cap(s) from the fiber optic connector and
connect the fiber optic cables. The TX port on the local unit should be connected to the RX port of the far end
device, and the RX port should be connected to the TX port of the far end device.
For 10Base-T ports, plug a Category 3 (or greater) twisted pair cable into the RJ45 connector. For
100Base-T ports, plug a Category 5 (or greater) twisted pair cable into the RJ45 connector. Connect the
other end to the far end station. Verify that the LNK LED’s are ON once the connection has been
completed. To connect any other port to another Switch or Repeater, use a standard Cat5 straight through or
crossover cable.
Warning: Creating a port to port connection on the same switch (i.e. loop) is an illegal operation and will
create a broadcast storm which will crash the network!
TROUBLESHOOTING
1. Make sure the (Power LED) is ON.
2. Make sure you are supplying sufficient current for the 105TX-POE or 105FX-POE and all powered
devices plugged into it. Note: The inrush current and steady state current is dependent on the
power requirements of the powered devices plugged into the POE switch.
3. Verify that the POE light is on solid if a valid POE PD is connected to the port.
4. Verify that Link LED’s are ON for both ports.
5. Verify cabling used between stations.
6. Verify that cabling is Category 3 or greater for 10Mbit Operation.