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Extended Temperature Conformal Coated 6x 10/100TX + 2x 100FX Redundant Multimode (SC) Modbus Switch (MRM-621E)

Supplier: Ethernet Direct Australia

The Moose MRM-621E and MRM-621EC are Industrial 8 Port Managed Fast Ethernet Switches with six 10/100Mbps ports and 2 100Mbps Multimode SC Fibre Ports, supporting direct ring technology.


The MRM-621 switches support Modbus/TCP, Modbus/RTU and OPC allowing SCADA applications to monitor the status of the Ethernet and Fibre ports utilising the Modbus or OPC protocols. For integration with sensors and alarms the MRM-800E has 3 Digital I/O ports. 

The switches can be managed via a RS-232 port or via any of the eight Ports using a Web Browser ot Telnet. The MRM-621E/C support a range of management features including Tag-based VLAN's, Port-based VLAN's, QoS, Port Trunking, Cable testing and Port Mirroring. The MRM come standard with extended temperature ranges of -30 to 75 degress C and the MRM-621EC comes with Conformal Coating for an added layer of protection. 

In addition the switches offer Ethernet isolation of 1500Vrms and frame ground for EMS protection which is not a standard feature in most Industrial Switches.

The self-recovering technology can recover from any network downtime in less than 300ms. 

  • Complies with IEEE 802.3, 802.3u, 802.3x, 802.3ab
  • 8x 10/100Mbps Ethernet Ports
  • 2x 100Base-FX Multimode SC Fibre Ports
  • Redundant Direct Ring recovery time < 300ms on full load
  • 3.2Gbos high performance memory bandwidth
  • Supports MDI/X
  • Broadcast Storm protection
  • IEEE 802.3x Flow Control for Full Duplex and Back Pressure on Half Duplex
  • Robust IP-30 Housing
  • DIN Rail, panel mount or desktop installation
Model MRM-621E is part of the Ethernet Direct Industrial Modbus over TCP Switch Solutions range - click HERE to see all models.