This is a Advantech 16 channel source type digital input / output modules. Its part number is ADAM-6052-D. The ADAM-6052 is a high density digital I/O module built-in a 10/100 based-T interface for seamless Ethernet connectivity. It provides 8 digital input, 8 digital output channels. All of the digital input channels support input latch function for important signal handling. The digital output channels support the source type output. This item comes as pictured and does not include any additional parts or accessories. Features: 8-ch DI, 8-ch DO, Ethernet-based smart I/O Remote monitoring and control with mobile devices Group configuration capability for multiple module setup Multiple protocol support: Modbus/TCP, TCP/IP, UDP, HTTP, DHCP, SNMP, MQTT Specifications: Manufacturer: Advantech Part Number: ADAM-6052-D Power Requirements: 10~30 VDC Temperature (Operating): -40 ~ 70°C (-40 ~ 158°F) Temperature (Storage): -40 ~ 80°C (-40 ~ 176°F) Interface: 10/100Base-T(X) Isolation Protection: 2000 VDC Communication Protocol: Modbus/TCP, TCP/IP, UDP, HTTP, DHCP, SNMP, MQTT Communication Speed: Ethernet: 10/100Mbps Connector: 1 x RJ-45 (LAN) & 2 x plug-in terminal block (I/O and power) Input Voltage: Dry contact: Logic level 0: close to GND Logic level 1: open Wet contact: Logic level 0: 0~3 VDC Logic level 1: 10~30 VDC Input Channels: 8 Output Channels: 8 (Source type) 10~35 VDC, 1 A per ch. Support 5 kHz pulse output