To configure the communication settings (baud rate, parity, and data bits) for your NION-232B Fire Alarm Board, begin by understanding that the factory presets are specific to the application for which the board was ordered. These settings are pre-configured on switch S2 of the NION-232B. To modify these settings, follow these steps:
- Locate Switch S2: The switch S2 on the NION-232B board is the key to adjusting baud rate, parity, and data bits.
- Consult the Installation Manual: Refer to the chart in your NION-232B Fire Alarm Board's installation manual. This chart provides the specific switch positions for the desired communication settings. The correct settings depend on the requirements of the device connected to your NION-232B board.
- Adjusting for 9 Data Bits: If the connected device requires 9 data bits, configure the NION-232B to use 8 data bits with either Even or Odd parity, according to the manual's guidance.
By consulting the provided chart in the installation manual and adjusting switch S2 accordingly, you can ensure proper communication between your NION-232B Fire Alarm Board and your control panel.