24-Channel Expansion Boards

Expansion Boards at a Glance...

• 24 Relays Installed on a Circuit Board
    - Access Relays Just Like They are Connected to the Main Board
    - XR Input and Output Connectors
    - Dual 2.1mm and Screw Terminal Power Connectors
    - On-Board Power and Relay Status LEDs
• Add Relays to
    - ProXR Boards
    - Time Activated Taralist Boards
• Onboard XR Expansion Ports
    - Plugs Into ProXR Board or Other Expansion Boards
    - Daisy Chain Expansion Boards Together
    - Control up to 256 Total Relays
    - 6" Ribbon Cable Included
• Expansion Boards DO NOT Operate on Their Own

Selecting an Expansion Board

ProXR Controllers were built with relay expansion in mind.  Easily add different types of relays to any ProXR board!  The XR Expansion Port allows you to also add expansion boards and control up to 256 total relays.  XR Expansion Boards are used to add banks of external relays to a PeoXR board.  XR Expansion Boards have no on-board firmware, they are entirely reliant on the firmware of the ProXR baord.

XR Expansion Port

XR Relay Expansion Boards add a large variety of relay switching capabilities to an existing NCD ProXR series controller.  The XR Expansion Port is used to add banks of external relays to a ProXR Controller equipped with a XR Expansion port.  Plug in the expansion board using the included 6" ribbon cable to the main board.  You can also daisy chain expansion boards together up to a total of 256 relays.

Selecting the Proper Amperage

What amperage relay do you need?  Below you will find the 24-channel Expansion Boards.  The difference being the amperage of the relays installed and the type of relay, choose a board that fits the amperage you are switching.  You will find a 10-Amp SPDT relays and DPDT versions available with 1, 3 or 5 amp relays installed.  For more information on selecting the correct amperage for your application see Choosing a Proper Amperage.