This system allow user to monitor inputs or control outputs of up to 32-points. I/O Module is connected to the RF Controller via 10-way IDC cable provided. Each I/O Module will have additional connector to interface to successive I/O Module. One Controller may interface up to 4 I/O Module. In this way, more combination of inputs or outputs may be available. If the DC Supply voltage to the RF Controller is the same for the I/O Module then it can supply the power to the I/O Module through the IDC cable. Please check the required voltage supply for I/O Module when order. Separate power supply for each I/O Module is available. Master RF I/O Controller will initiate communication command automatically once power is applied. The communication data should be interpreted by another similar RF controller or RF system as the slave. LED is provided for data communication indication. Configuration software was bundled for this application. Beside configurations, the software also provides the monitoring and controlling function.