APPLICATION - For solar power system, vehicle, RV, VoIP IP phone system, robust fiber ring network. NON-STOP POE SUPPLY WITH DUAL POWER INPUT - Support 2 channel DC12V-48V redundant power inputs and auto failover, ensure high reliability networking system. TOTAL 240W POE BUDGET - Up to 30W per POE port, and total 240W POE budget (DC48V input), or 120W (DC24V input), or 80W (DC12V input). POE WATCHDOG - Realtime monitoring POE load device's status and will automatically reboot POE port when the connected device is not active. It proivdes non-stop running of POE device, like security cameras, IP speakers and IP phones. INDUSTRIAL DESIGN FOR HARSH ENVIRONMENT - Fanless design and wide working temperature (-40? ~ 75? or -40 ? ~167 ?); 6KV surge protection; DIN rail mount. 8-PORT FULL GIGABIT POE SWITCH - Providing 8*10/100/1000Base-T Ethernet PoE ports and 2*1000Base-X SFP slots (Fiber module is not included). Each POE ports are compliant to IEEE802.3af/at standard. It supports one-key fast ring fiber network and broadcast storms protection (BSP). DC12V ~ DC48V POE VOLTAGE BOOSTER - Supply standard IEEE802.3af/at POE power with DC12V/DC18V/DC24V/DC36V/DC48V input . (Noted: Only POE Mode A output is supported, if your POE Device is Mode B, pls buy 5 port Solar POE Switch: B09HGWLZSD).