7Option 3: Control via professional control systemKD-PS42 allows control over serial interface for bi-directional communication.Pin: 1 2 3 4 5 6› For RS-232 control use pins 4, 5, and 6 of the Main Control port› For TCP/IP control, the default static IP address is 192.168.1.239, with port 23Default static IP address:192.168.1.239, port 23› For the past 10 years, most Key Digital switches have supported a standard HDMI switchingcommand. KD-PS42 is also controllable by this command, so if you have previously integrated KeyDigital matrixes by third-party control systems you may have success using the same driver/module.» Switching – Video + Audio together (two commands supported)» SPO01SIyy yy = input number (01-02)» SPOSIyy yy = input number (01-02)Test for proper operation of the unit and cables in your system before permanentlysecuring the unit for final installation. Ensure that you leave enough ventilationspace to provide sufficient airflow and cooling.Visit keydigital.com for a Complete ManualPlease visit www.keydigital.com for the full manualand software downloads.