Wiren Board 6: Extension module RS-232 (WBE2-I-RS232)

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This page is a translated version of the page Wiren Board 6: Модуль расширения RS-232 (WBE2-I-RS232) and the translation is 100% complete.
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Hardware

WBE2-I-RS2322 back side
WBE2-I-RS2322 front side

The module is based on the MAX202 chip and provides +/- 10V signal levels.

Pinout

The RS-232 signals are output to the terminals of the O1-O3 extension module.

Pinout:

Terminal Function
O1 RX
O2 TX
O3 GND

Configuration

Configuration is done in the web interface. Section Configs => Hardware Modules Configuration. Next, in Internal slot 1 or in Internal slot 2, select "WBE2-I-RS232: RS-232 interface module" and click Save.


The device is detected immediately, no reboot is required.

Work

The port is available in the system as

  • /dev/ttyMOD1 - when installed in the first slot for extension module (MOD1)
  • /dev/ttyMOD2 - when installed in the second slot for extension module (MOD2)

You need to turn off the hardware flow control for operation.