Просмотр кода страницы WBE2-I-RS485-ISO RS485 Extension Module/en

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Module with galvanically isolated RS-485 interface. Insulation voltage: 1.5 kV.
Speed up to 1 Mbit/s. 

Module contains 120 Ohm terminator between lines A and B. To enable it, close the jumper between termination contacts on the top edge of the board.

== Pinout ==

<div class="tright" style="clear:none">[[Файл:WBE2-I-RS485-ISO1.png|thumb|200px| WBE2-I-RS485-ISO reverse side ]]</div>
<div class="tright" style="clear:none">[[Файл:WBE2-I-RS485-ISO2.png|thumb|200px| WBE2-I-RS485-ISO front side]]</div>

RS485 signals are output to the terminals of the O1-O3 extension module. 

{| class="wikitable"
!Terminal
!Function
|-
|O1
|A (D+)
|-
|O2
|B (D-)
|-
|O3
|Isolated GND (Common, C)
|}

==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-RS485-ISO: Isolated RS-485 interface module" and click Save.


The device is detected immediately, no reboot is required.

==  Operation ==

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)


For operation, you must disable hardware flow control. Additional port configuration as RS-485 is not required.