Installation Instructions

Installation and connections Page 31/57
Installation and starting instructions
b) Polarization and termination of the RS485 bus
The bus can be polarized from your device if
necessary. To do this you must switch the two micro-
switches (Pol. RS+ (A) and Pol. RS-(B)) of the electronic
card in ON position.
If your device is the last on the line on the RS485 bus
you can switch the Term. RS switch on ON to activate line
termination.
For security reasons, it’s imperative to turn OFF the power of your device before opening the case
to switch the micro-switches!
For more information about the RS485 converter configuration, see « DOC0461 Communication
programming instructions COOLTOUCH ENG Rev1 ».
RS + (A)
RS – (B)
Term RS
ON
OFF