TP-Link TL-SF1048 User Manual

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10/100Mbps Unmanaged Switch

17 Appendix A Troubleshooting

Appendix A Troubleshooting

Q1.

Why is the Power LED is not lit?

The Power LED should be lit up when the power system works normally. If the Power LED

worked abnormally, please try the following:

1. Make sure that the power cable is connected properly, and the power contact is normal.

2. Make sure the voltage of the power supply meets the requirement of the input voltage of

the switch.

Q2.

Why is the Link/Act LED not lit while a device is connected to the corresponding

port?

Please try the following:

1. Make sure that the cable connectors are firmly plugged into the switch and the device.

2. Make sure the connected device is turned on and works normally.

3. Try to change the connected device’s transmission speed and duplex mode.

4. The cable must be less than 100 meters long (328 feet).

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TP-Link ‎TL-SF1048 48 Port 10/100Mbps Fast Ethernet Switch | Plug and Play | Rackmount | Sturdy Metal w/ Shielded Ports | Fanless | Limited Lifetime Protection | Unmanaged (TL-SF1048)