Audio Zone Amplifier 100W Operation Manual© MuxLab Inc. 2016 9System Connection4.4.1. Safety PrecautionsThe system should be installed in a clean environment with typical room temperatureand humidity levels, within the specified operating range (see specifications).All devices should be connected before turning on the power.4.2. System Diagram4.3. Connection ProcedureStep 1 Connect audio sources (such as CD, Blue-ray, DVD, media player, etc.) toINPUT ports of the device with audio cables;Step 2 Set the Input Select to the correct source, and connect the audio output device(s)(such as passive speakers) to the audio output port accordingly. Ensure that theunit is not powered while connecting or disconnecting speakers.Step 3 (Optional) Insert an IR receiver (5V, without carrier) to IR Sensor to enable IRcontrol.Step 4 (Optional) Connect a control device (e.g. a PC) to RS232 port to enable serialcontrol.Step 5 (Optional) Connect a control device (e.g. a PC) to an Ethernet LAN and theamplifier TCP/IP port to the same LAN to enable IP control.Step 6 Plug 33VDC power adaptor to the power port of the amplifier.