8 / 16 / 24 / 32 channel digital input concentrator module family with Modbus RTU communication

Smart metering
Digit. inputs
Modem connect.
Product code:

The M2M IO/RS485 CONCENTRATOR®  is a 8-port data concentrator with digital input lines, assembled in a modular DIN-standard, mountable ABS plastic case.

Capable of continuously collecting the digital signals from 1-8 connected metering- or industrial devices.

It was especially made for industrial usage, for measurement and remote metering areas.

Cost-effective solution for counting the impulse signals of the consumption meter devices (as water, gas, electricity meters) or readout status of the connected inputs.

It contains potential-free digital inputs (S0-type contact or voltage inputs).



  • Galvanical isolated digital inputs
  • Type: contact/voltage (configure by jumper)
  • Contact inputs are S0 class B compatible
  • Galvanical isolated RS485 port
  • Modbus RTU protocol communication
  • Configurable watchdog for monitoring Modbus communication and activity
  • Store of counter values in non-volatile memory
  • LEDs for indicating the operation, input status




  • Data collection and counting
  • Measurement and data collection systems
  • Forwarding industrial system or PLC data
  • Monitoring industrial or measurement devices
  • Remote control


  • ABS modular enclosure (EN 50022)
  • 35mm DIN-rail compatible mounting (to any position)
  • Wire connection with terminal block
  • Compatibility with M2M PRO 4® router


Package content

• M2M IO/RS485 CONCENTRATOR (according to the 8 / 16 / 24 / 32 port version)
• Power Supply


Technical data

m2m io/rs485 concentrator

Pay attention to the following products


M2M Modbus RS485 IO

4-port RS485 Modbus TCP industrial modem with 2G communication for industrial PLC & Scada systems, impulse signalling and smart metering


M2M Router

Simple and trustful CDMA 450, 2G, 3G, 4G LTE, LTE 450, Narrow Band routers with Ethernet and optional RS485 connection


M2M Router PRO 3 RS485 Modbus

1-port RS485 Modbus concentrator and M-Bus Gateway with 3G / LTE 4G / LTE 450 MHz communication and optional WiFi or Dual-SIM module


M2M Router PRO 4

Advanced industrial IoT LTE router with 4 Ethernet ports, RS485, RS232, digital inputs and DUAL SIM feature


We are using Google Analytics

We'd like to inform you that our website is using Google Analytics tracking by analysing the visiting interest purposes. The aim of the monitoring service is to anonymously show the share of interests, allocation of visits.
These data are used by our company ony - without any personal data - for internal, maketing decisions (promotions, tendencies, finding contact of visiting companies), not distributing data for any person or company.
Further information about the Google privacy policy: www.google.com/analytics

Please confirm, if you Accept our Google Analytics tracking. You can also Decline the tracking, so you can continue to visit our website without any data sent to Google Analytics.