LEGRAND C2G 89510 Mode D'emploi page 9

Serial Configuration (US)
29510 / 89510 built-in serial interface allows users to transmit RS-232 up to maximum baud rate 115,200bps, at Bi-directional pass-through. Please
follow the installation and operation steps as shown below.
You will need to use the supplied 6-pin RJ11 extension cable & RJ11 to DB9 adapter for connecting the Transmitter and Receiver in between the DCE
(data communication equipment) and DTE (data terminal equipment).
The configuration of controller's serial port is shown as below.
All manuals and user guides at all-guides.com
If there's no serial connector on your computer, you may use
a USB-to-serial adapter for connection. PN. 26886
8
Baud Rate 115,200bps
Data Bits 8
Parity None
Stop Bits 1
Flow Control None