Charge USB-powered devices via a network cable; instructions for powering devices without a USB port

Using USB ports to connect peripherals is commonplace, but have you ever tried charging a device via a network cable? This isn't a new concept, but it's an interesting topic worth exploring.

Many devices, such as webcams and WiFi routers, can draw power from a USB port, so why not utilize the network port on your modem or a USB-to-Ethernet adapter to do the same?

nstructions for charging USB-powered devices via a network cable

Some devices, such as WiFi cameras, have a network cable for power, while many others use only USB or regular wall sockets. If your home has network ports in convenient locations but you don't utilize them to charge your devices, that's a real waste.

Note: Before attempting to power the device via the network cable, check if your network system supports power supply.

What is Power over Ethernet (POE) technology?

You might see the PoE symbol on some WiFi modems, but not all devices support it. PoE (Power over Ethernet) is a technology that transmits electricity through an RJ45 network cable, powering devices like WiFi cameras without the need for a separate power outlet.

How to obtain power without using a USB port

You just need a PoE converter, which can be bought at an electronics store for a few hundred thousand dong. This device has one Ethernet input port and two output ports:

- Ethernet port:  Connects to a modem or network system that supports PoE.

- USB port:  Converts power from the network cable to charge the device.

Step 1: Plug the Ethernet cable from the adapter into your modem or a power outlet with an Ethernet (RJ45) port. This will power the device via PoE technology.

As a result, you'll have an Ethernet port for network connectivity and a USB port for charging devices. Thanks to the PoE adapter, you can utilize your network cable to power devices using USB ports.

Step 2: Plug the Ethernet cable into the other port if you want to connect to a WiFi camera or other devices using the RJ45 standard. This allows for both data transmission and power supply through the same network cable.

Step 3:  The other end can be plugged into a USB adapter to draw power from the network cable.

Step 4: Finally, simply connect the peripheral device or phone charger to the USB port to provide power.

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So now you know how to use a network cable to power a USB device. This method saves space and optimizes the use of existing devices in your home.

Telephone wires and Ethernet cables have different structures, but if you understand the principles, you can still use  a telephone wire as a network cable  in certain situations. However, the speed and stability may not be as good as a standard Ethernet cable.