General Protocol Modbus/TCP, TCP/IP, UDP, HTTP, DHCP Connectors 1 x RJ45, 1 x 15-pin plug-in screw terminal
Isolated Digital Input Channels 4 Input Voltage Dry Contact Logic level 1: close to DI COM Logic level 0: open Wet Contact Logic level 1: 10~30 VDC Logic level 0: 0~3 VDC Isolation Protection 3000 Vrms
Environment Operating Temperature -40~70 °C (-40~158 °F) Storage Temperature -40~85 °C (-40~185 °F) Storage Humidity 0~95% RH (non-condensing)