Siemens DDC PXX485.3 Expansion Module W/3 RS-485 CT

The Siemens DDC PXX485.3 Expansion Module W/3 Rs-485 CT serves as a communication link between Siemens DDC and other HVAC equipment. Offering three RS-485 communication channels increases the DDC's communication capability. Through these channels, DDCs can communicate with linked HVAC equipment, including air handling units, thermostats, and variable frequency drives, to send and receive data and control signals. This allows several building automation systems, such the HVAC and air conditioning systems, to be managed and monitored from one place. The Siemens DDC PXX485.3 Expansion Module may maximize building comfort, save energy consumption, and increase overall system efficiency through better communication and control.