Contact Closure Over IP

Contact Closure Over IP at a Glance...

  • Sender Board Controls the Receiver Board
      - Sold in Pairs
      - 4 Contact Closure Inputs on Sender Board
      - 4 Relays on Receiver Board
      - When Circuit is Closed - Reley is On
  • Ethernet Option
      - Plugs Directly Into Router
      - Local Area Network Control
      - Static IP Address Required
  • Sender Board Displays Status of Remote Relays

Selecting the Proper Amperage

For more information on selecting a board with the correct relay amperage for your application see Choosing a Proper Amperage.

Contact Closure Over IP

MirC_LAN Contact Closure Over IP boards allow contact closure inputs to control relays in a remote location using a two board design. The sender board is equipped with four contact closure (no voltage) inputs, used to control the four relays on the receiver board.  Both sender and receiver boards are included when you purchase a MirC pair.

Contact Closure Input & Output

The relays on the receiver board can be used to interrupt the power of a device you are switching and also as a dry contact closure output.  Applications where you need to extend the range of a contact closure over a distance the MirC will work.  Connect the Contact Closure output of your device to the Sender Board then wire the relays on the Receiver Board as your contact closure input in a remote location either on your LAN over the Internet.

Selecting Contact Closure Over IP

Contact Closure Over IPBy selecting the Ethernet interface the boards will be communicating through your local area network.  Boards on this page are equipped with an Ethernet communication module that adds network communications to the boards.  Each board will plug directly into your router.  Initially both boards will be in DHCP mode so a managed network is required, at least for initial configuration.  It is not possible to configure these devices on an unmanaged switch, however after configuration is complete it is absolutely possible to install the boards on an unmanaged network.

Selecting a Contact Closure Over IP Board

What amperage relay do you need?  MirC boards boards below have four inputs on the sender board and four relays installed on the receiver board.  You now have your choice of 5, 10, 20 or 30 amp relays installed.  Select the board with the amperage that you will require for more information and to purchase.  The 5-amp relay is the smallest we offer and can be used as a dry contact if needed.  For more information on selecting the correct relay for your application see Choosing a Proper Amperage.