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How do I configure the baud rate, parity, and data bits for the NION-232B Fire Alarm Board?

1Answers
McRicardo
12/17/2025, 06:19:45 PM

Configuring the baud rate, parity, and data bits for your NION-232B Fire Alarm Board is essential for proper communication. The factory preset settings for the NION-232B are determined by the specific application it was ordered for. These settings are configured via switch S2 on the board. To change these settings, follow these steps:

  1. Locate Switch S2: Identify switch S2 on your NION-232B board. This switch controls the baud rate, parity, and data bits.
  2. Refer to the Installation Manual: Consult the chart in your installation manual. This chart provides the specific switch positions for setting the baud rate, parity, and data bits that matches the requirements of your connected device.
  3. Understanding Data Bits: If your connected device requires 9 data bits, configure the NION-232B for 8 data bits, along with either Even or Odd parity. This ensures the communication integrity. By carefully following the instructions in the installation manual and adjusting switch S2 accordingly, you can configure your NION-232B Fire Alarm Board effectively.
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