Advantech MIC-2730 16-Channel Isolated Digital Input Module

The Advantech MIC-2730 is a 16-channel isolated digital input module for industrial automation and data acquisition. It accepts dry contact and wet contact signals up to 30 VDC, with 2500 VDC isolation between channels to eliminate ground loop interference and transient voltage coupling. Configurable debounce filtering suppresses noise-induced false triggers.

Built-in overvoltage and reverse polarity protection safeguard against field wiring faults. The module mounts on DIN rail in a ruggedized enclosure and connects via removable screw terminal blocks. It operates from 10 to 35 VDC supply voltage across industrial temperature ranges.

Technical Specifications

• Channels: 16 isolated digital inputs


• Input Types: Dry contact (open/closed detection) or wet contact (0–30 VDC)


• Isolation Voltage: 2500 VDC


• Wet Contact Input Impedance: Configurable, typically kΩ range


• Input Filtering: Configurable debounce time


• Protection: Overvoltage and reverse polarity protection


• Power Supply: 10–35 VDC


• Connection: Removable screw terminal blocks


• Form Factor: DIN-rail mount, ruggedized industrial enclosure


• Operating Temperature: Industrial range ( for exact limits)


• Operating Humidity: Non-condensing

Key Features

• Channel isolation eliminates noise coupling and transient voltage spikes


• Accepts both dry and wet contact sensor inputs


• Programmable debounce prevents chatter from mechanical switches


• Field-proven overvoltage and polarity protection


• Compact DIN-rail packaging for control cabinet integration


• Wide supply voltage acceptance (10–35 VDC) suits diverse field power systems

Typical Applications

• Discrete sensor and limit switch monitoring in manufacturing


• Plant safety interlocks and emergency stop networks


• Process control signal acquisition in harsh environments


• PLC and industrial controller input stages

Compatibility & Integration Connects to host systems via removable screw terminals. Communication protocol and host interface options depend on system configuration.