1. Symptom: A transceiver light does not turn on
Solution: Use a multimeter to check the DC voltage output of the power supply. Also, measure the AC and DC output from the transformer to ensure it's within the normal range. If the output voltage is abnormal, check the primary winding resistance of the transformer using the multimeter. If there's an open circuit, replace the power transformer. This step helps identify if the issue is with the power source or the transformer itself.
2. Symptom: POWER, RX, and LINK lights are on
Solution: This usually indicates a problem along the optical path. Remove the fiber optic cable and place the connector in a dark area. Check if the opposite end emits a red light. If no light appears, the remote transceiver may be faulty and should be replaced. If there is a red light, check the transmitting end of the fiber transceiver. If the light is weak or absent, the transceiver might need to be replaced.
3. Symptom: RX and LINK lights are on at the UTP end
Solution: This suggests an issue with the signal output. Use a cable tester to check the twisted pair connection between the switch and the fiber transceiver. If the wiring is fine, the problem might be with the transceiver itself. Inspect the transceiver for a straight-through switch. Gently toggle the switch with a small screwdriver several times. If the RX and LINK lights come on and the network functions normally, the issue was likely caused by dust blocking the switch contact.
4. Symptom: All indicators are normal, but the network is slow
Solution: Connect a laptop to the UTP port of the fiber transceiver and boot into Windows 98. Click "Start" > "Run" and type "Ping XXX -t" (where XXX is the IP address of the device). This will help identify where the packet loss occurs. If the ping test still shows issues after replacing the transceiver, the problem may lie on the other end, so check and replace the transceiver on that side as well. This process helps isolate the faulty component causing the slowdown.
Solution: Use a multimeter to check the DC voltage output of the power supply. Also, measure the AC and DC output from the transformer to ensure it's within the normal range. If the output voltage is abnormal, check the primary winding resistance of the transformer using the multimeter. If there's an open circuit, replace the power transformer. This step helps identify if the issue is with the power source or the transformer itself.
2. Symptom: POWER, RX, and LINK lights are on
Solution: This usually indicates a problem along the optical path. Remove the fiber optic cable and place the connector in a dark area. Check if the opposite end emits a red light. If no light appears, the remote transceiver may be faulty and should be replaced. If there is a red light, check the transmitting end of the fiber transceiver. If the light is weak or absent, the transceiver might need to be replaced.
3. Symptom: RX and LINK lights are on at the UTP end
Solution: This suggests an issue with the signal output. Use a cable tester to check the twisted pair connection between the switch and the fiber transceiver. If the wiring is fine, the problem might be with the transceiver itself. Inspect the transceiver for a straight-through switch. Gently toggle the switch with a small screwdriver several times. If the RX and LINK lights come on and the network functions normally, the issue was likely caused by dust blocking the switch contact.
4. Symptom: All indicators are normal, but the network is slow
Solution: Connect a laptop to the UTP port of the fiber transceiver and boot into Windows 98. Click "Start" > "Run" and type "Ping XXX -t" (where XXX is the IP address of the device). This will help identify where the packet loss occurs. If the ping test still shows issues after replacing the transceiver, the problem may lie on the other end, so check and replace the transceiver on that side as well. This process helps isolate the faulty component causing the slowdown.
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