PoE WATCHDOG -Continuously monitoring PoE ports and automatically reboot PD device if it is freezing. 90W BT PoE - All the PoE ports support IEEE802.3af/at PoE output, the first port can be configured as 90W BT PoE. Total PoE budget 240W @ 48V, or 120W @ 24V, or 60W @ 12V. Q-PoE and P-PoE - Its Quick PoE technology enables PoE power supply immediately upon switch starup, and the Perpetual PoE ensure non-stop PoE supplying even if the switch is restarting. They are unique features for many IoT devices that rely on non-interruption operation. 12/24V DC OUTPUTS - The DC Out supports 3 working modes through DIP switch: OFF/12V/24V. RS485 SERIAL DATA INPUT - Provides RS485 serial port for IoT sensors integration or remote control, for example, humidity sensor, smoking sensor, light control, etc. DC12~57V WIDE VOLTAGE INPUT - Supports 2 channels of DC12~57V redundant power inputs. It is designed for reliable PoE power output in solar power systems, vehicles or other applications that without AC power input. LAYER 2 MANAGED PoE SWITCH - Provides 8 * 10/100/1000Mbps Ethernet RJ-45 ports, 2 * 1G/2.5Gbps SFP uplink ports. Supports L2 management functions like VLAN, QoS, PoE Management and PoE port control, as well as automatic ONVIF cameras discovery. It can be managed via WEB, CLI or SNMP.