Trendnet'S 8-Port Industrial En50155 M12 Gigabit Poe+ Railway Switch, Model Ti-Tpg80, Has Eight M12 Gigabit Poe+ Ports With A Total Poe Budget Of Up To 200W. This M12 Railway Switch Is Equipped With An Ip40 Rated Metal Enclosure, Designed To Withstand A High Degree Of Vibration And Shock, While Operating Within A Wide Temperature Range Of -40 - 75 C (-40 - 167 F) For Industrial En50155 Applications. This Industrial M12 Switch Supports An Input Voltage Range From 24 - 56V Dc With M23 Power Interface And M12 Alarm Relay Interfaces For Moving Bus, Train, And Other Rolling Stock Applications. Designed And Tested For Transportation And Telco Applications.