please note: Fast Ethernet Switch 10/100Base-Tx to 100Base-FX Fiber Switch When Power input vlotage=52V, 8 RJ45 port with POE 12V Output; When Power input vlotage=12V, 8 RJ45 port without POE Output; This model cannot use 5V power adaptet!!! When DIP Switch to F mode, it works in 100M speed, and Data Distance and Power Distance <=100M When DIP Switch to N mode, it works in 10M speed, and Data Distance and Power Distance <=250M The Fast Ethernet Switch is an Ethernet is specially designed for network monitoring. It has 8 10/100M RJ45 ports have POE power supply function and 2 Uplink 10/100M and 1*155M fiber. It adopts RTL8309N chips to ensure low power consumption and high stability. It extends the transmission distance of a network from 100m to 120km via copper cables. It can extend the transmission distance; there are also many other advantages such as isolation protection, good data security, working stability and easy maintenance. Technical Specication Model JYD-010208 Ethernet Port 8*10/100Mbps PoE ports 2*10/100Mbps ports 1*155M fiber PoE Power Consumption Port160W, Port2-830W, Total96W PoE Protocol IEEE 802.3 af (PoE), IEEE 802.3 at (PoE+), Hi-PoE Switching Capacity 5.6G bps Packet Forwarding Rate 4.17M pps Packet Buffer Memory 4Mb MAC Table Size 16K Flow Control Enable by default Application Humidity 10%~90% Power DC48~57V power adapter Lightning Protection Common Mode 2KV Differential Mode 0.5KV Working Temperature 10°C~+55°C