Planet ISW-621S15, 4-Port 10 100Base-TX 2-Port 100Base-FX (15km) interface for up to 15km (Multi-mode fiber 9 125 m fiber) , Industrial Fast Ethernet Switch (-10 60 Degree C operating temperature), IP-30 Metal case Protection, DIN Rail and Wall Mount Design, 12 to 48V DC, redundant power with polarity reverse protect function and connective removable terminal block for master and slave power
