W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

Microwall Bridge

  • Microwall Bridge

Protecting machines and equipment - without changing the IP setup

Segmenting network and isolating of sensitive network areas is one of the basic measures in virtually any IP security concept for protecting industrial environments. With the Microwall Bridge this can be done IP-transparently while the network configuration including routing of all involved components remains unchanged. Whitelist-based and using simple and intuitive filtering rules on the TCP/UDP/IP level only the explicitly desired communication between the island and the surrounding network is enabled. The protocol-transparent operation makes the Microwall Bridge especially suitable for post-segmenting of already existing network environments.

More info: Learn more about how the Microwall Bridge works compared with router solutions here.



  • 2x Ethernet 100/1000BaseT
    • Autosensing and Auto-MDIX
  • High data throughput
    • Gigabit Ethernet
    • max. 900MBit/s
    • Low latency times thanks to powerful hardware platform


  • Implementation as bridge
    • No intervention in the routing concept of the network
    • No intervention in the IP configuration of the associated devices
  • Consistent whitelist-based firewall concept
    • Filter rules based on IPv4 addresses and TCP/UDP port numbers
  • Logging
    • Identification of undesired communication attempts

Management & Security:

  • Secure firmware concept with Secure Boot
    • No uploading of manipulated firmware or third-party firmware
  • Configuration via HTTPS-Only Mode
    • Supports individual certificates
    • Fast startup using WuTility or DHCP
    • Required password without default login
  • Port management for all local services
    • All service/management services can be configured/deactivated
  • Network management systems
    • Optional support for SNMPv2c/3 (read)

Supply Voltage

  • External power
    • Screw terminals, 24V-48V DC
  • Power-over-Ethernet (PoE)

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Technical data:

Connections and displays:

  • Network:
  • Data throughput:
    • max. 900MBit/s
  • Galvanic isolation:
    • Network connections min. 1500 V
  • Supply voltage:
    • Power-over-Ethernet (PoE) or
    • DC 24V .. 48V (+/-10%) and
  • Supply connection:
    • Plug-in screw terminal, 5.08mm spacing
    • Labeled "L+" and "M"
  • Current consumption:
    • PoE Class 2 (3.84 W to 6.49 W)
    • or for external supply:
    • typ. 150mA @24V DC
    • max. 200mA @24VDC
  • Indicators:
    • 2x LEDs for network status
    • 1x LED for Error

Housing and other data:

  • Housing:
    • Plastic compact housing for top-hat rail mount
    • 105x22x75mm (LxWxH)
  • Enclosure rating:
    • IP20
  • Weight:
    • approx. 120g
  • Ambient temperature:
    • Storage: -40..+85°C
    • Operating 0..+50°C (no stack mounting)
  • Permissible relative humidity:
    • 5..95% RH, non-condensing
  • Scope of delivery:
    • 1x Microwall Bridge
    • 1x Quick Guide


  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 21.00€
    • Plug-in Power Supply, 24V / 750mA DC with Euro, US and UK plug
    • 11026
    • 38.00€
    • Power supply for DIN rail, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 33.00€
  • Mechanical Accessories

    • Wall mount housing, enclosure rating IP66 / IP67
    • 11120
    • 54.00€
    • Mounting bracket for wall mounting
    • 58812
    • 11.20€
    • 19" DIN rail
    • 58813
    • 21.00€
  • Supplementary network products

    • Ethernet Switch Industry, 4 Port
    • 55604
    • 218.00€
  • Software

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.