WM Systems - Innovation in Smart IoT SystemsM2M IO/RS485 CONCENTRATOR 8DI - WM Systems LLC - Innovation in Smart IoT systems : WM Systems LLC – Innovation in Smart IoT systems

Smart metering
Digit. inputs
Modem connect.
Product code:

8-port data concentrator with digital input lines, assembled in a modular DIN-standard, mountable ABS plastic case.

It is capable of continuously collecting digital signals from 1-8 connected metering- or industrial devices.

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

It constitutes a cost-effective solution for counting impulse signals of consumption meter devices (i.e. water, gas, electricity meters) or for readout of the status of connected inputs.

It contains potential-free digital inputs.



  • Galvanic isolated digital inputs
  • Input type: voltage (WET mode)
  • Galvanic isolated RS485 port
  • Modbus RTU protocol communication
  • Configurable watchdog for monitoring Modbus communication and activity
  • Storage 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


• ABS modular enclosure (EN 50022)
• 35mm DIN-rail compatible mounting (to any position)
• Wire connection with terminal block
• Compatibility with M2M Router® (with RS485 expansion) and M2M Router PRO 4®



• Power Supply (24V DC) – optional


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

Professional, industrial IoT router with choosable wireless modules (CDMA 450, 3G, 4G, LTE Cat.4/Cat.1, Cat.M, Cat.NB) and port expansion options


M2M Router PRO4

Industrial smart IoT MBus router and data concentrator with Ethernet ports, RS232/RS485 port, DUAL SIM feature and expansion options


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