TBC-PS5516U3D-4PF is an innovative R&D design developed by Tianbo Communication to meet the needs of POE++ power supply. It adopts the latest high-speed Ethernet switching chip and ultra-high backplane bandwidth design. It has extremely fast data processing capabilities and improves smooth data transmission performance. AI intelligent watchdog function, support VLAN, support 10M bandwidth transmission; specifications that meet the needs of application scenarios: 16+2+2 products; with 16 Gigabit POE power supply RJ45 adaptive Ethernet ports, 2 RJ45 Gigabit uplink ports and 2 SFP Gigabit uplink optical ports . Ports 1-4 support IEEE 802.3af/at/bt standard POE++ power supply, with a maximum port output power of 60W; the whole machine power is 200W . It can automatically detect and identify powered devices that meet the IEEE 802.3af/at/bt standards, and power them through the network cable as a priority mechanism. It also has a built-in watchdog function. According to the power outage of the front-end equipment, it automatically delivers power to meet the requirements of on-site power supply equipment.