Alpha IN024A 24 Input Serial Encoder Board

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Product Highlights
    • Non-returnable or refundable

The IN024A from Alpha is a 24-input Decoder Board used for a variety of applications. The primary use is for capturing up to 24 voltage (or dry contact) inputs from an entry intercom or call station (or up to 144 when used in a matrix configuration with some additional components), and sending the proper RS232 data to a PC which is running VisitorVerifier or AlphaEntry (or other) software. The IN024A board is designed to easily surface mount right onto the finished wall by using the mounting holes provided for screw mounting, along with the provided plastic stand-offs. Connection is positive screw terminal and plug-in type.


  • Easily Installs Right on Finished Wall Surface
  • Operates on Safe Low-Voltage Class II Wiring
  • RS-232 port to accept serial data or send serial data based on inputs
  • Convenient Screw Terminal and Plug-in Connections
  • Program up to 12 x 12 matrix, based on application. Pins not used as Rows or Columns can be used as individual inputs (requires additional components for grater than 24 inputs)
  • DB9 female connector for RS232 hookup
  • No special drivers required
Manufacturer  Alpha
COM Ports  RS-232
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Availability: In stock