View source for WBE2-I-RS232 RS-232 Extension Module/en

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== Hardware ==

<div class="tright" style="clear:none">[[Файл:WBE2-I-RS2321.png|thumb|200px|WBE2-I-RS2322 back side]]</div>
<div class="tright" style="clear:none">[[Файл:WBE2-I-RS2322.png|thumb|200px|WBE2-I-RS2322 front side]]</div>

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:
{| class="wikitable"
!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.