Operating Manual

19_J05xxx_Indoor Air Quality Sensor SPB308 E&C.indd 7
9/1/19 5:11 PM
Wi-Fi configuration button
Tips: Press Wi-Fi configuration
button for at least 5 seconds to
reset the Wi-Fi setting
EN
3.2 Modbus Connection
• Connect SPB308 to RS485 port with Modbus cable.
RS485B RS485A
The Modbus cable is placed
through the wire groove
7
Caution: Pay attention to
the polarity of RS485 ports