BD-C Series - Communication Converter for Laser Displacement Sensors The BD-C series communication converters allow RS232C/RS485 communication for BD series laser displacement sensors. The communication converters can be powered by the sensor amplifier unit by connecting the units using the side connector. The atDisplacement laser displacement sensor software allows users to batch parameter settings, monitor measured values and outputs in real-time, and set communication speed and addresses without connecting to host devices.