Programmable Relay, Input Voltage 20 to 38V DC, 24V AC, Output Type Analog, Relay, 1.0 A, 3.0 A Amps, 1 CAN port - screw terminal block, 1 Ethernet - RJ45 Modbus TCP and BACnet IP with webserver, 1 USB type A - USB type A female, 1 USB type mini B - USB device port Mini-B, 2 RS485 - screw terminal block Modbus serial link or BACnet MS/TP Slots, Timers Programmable, Yes Clock, LCD Display, Port Type 1 CAN, 1 Ethernet, 1 USB type A, 1 USB type mini B, 2 RS485