Is The POE Power Supply Suitable For POS Machines?

POE is the abbreviation of Power Over Ethernet, which refers to the transmission of data signals for some IP-based terminals (such as IP phones, wireless LAN access points AP, network cameras, etc.) without any changes on the basis of existing Ethernet wiring, and provide DC power for these devices.

Main power supply parameters of POE standard power supply system:
1. The voltage is between 44 and 57V, the typical value is 48V.
2. The maximum current allowed is 550mA.
3. Typical operating current is 10 to 350mA.
4. Provide five levels of power from 3.84 to 12.95W for the power supply equipment, and the maximum does not exceed 13W.

Going back to POS machines, take the J1900 processor as an example, the power is 10W, and many peripheral components need to be added for application. So, the motherboard of J1900 requires a voltage of 12V~24V and a electric current of more than 3A, and the power of the entire motherboard will reach 15W~22W. After connecting POS peripherals such as thermal printer and barcode scanner, the current requirement is higher.

From the above parameters, the maximum current and voltage that POE power can reach are not satisfied. Therefore, POE power supply is not suitable for POS machines.