Q：Why couldn’t my PoE PD devices be powered on when connected to PoE switch
1. Please check the cable type of the connection from one end of the PoE Switch to the other end. The cable should be an 8-wire UTP, Category 5e/6, EIA568 cable used within the distance of 100 meters. The power transmission will be affected if a cable with only 4-wire, short loop is used for a distance of over 100 meters.
2. Please check to make sure the device is fully complied with IEEE 802.3af/at standard.
If the device is only complied with IEEE 802.3af/802.3at standard,power on the device again and then connect it to the device.