The ISW-514PTF is designed with redundant power system and is able to operate reliably, stably and quietly in any hardened environment without affecting its performance. It comes with a total power budget of up to 120 watts for different kinds of PoE applications and operating temperature ranging from -40 to 75 degrees C in a rugged IP40 metal housing.
To facilitate the 802.3at PoE+ usage with the commonly-used 12~54V DC power input for transportation and industrial-level applications, the ISW-514PTF adopts 12~54V DC to 54V DC power boost technology to solve power source issue but does not require special power supplies. Its wide-ranging voltages design is suitable for worldwide operability with high availability applications requiring dual or backup power inputs.
Refer to above PDF Data sheet
Part number – ISW-514PTF Industrial 4-Port 100Mbps 802.3at PoE + 1-Port 100FX Switch