2. USB terminalUsed on the manufacturing process and after-sales service.3. Power inputConnect the supplied AC adapter.Bottom1. Reset buttonPress and hold the button using a pen tip or like for 5 seconds or more.Pressing and holding the button makes the all Volume indicators and Microphone muteindicators starts blinking. After blinking stops, release button. After that, the settings havebeen reverted back to the default.If this controller is the primary controller of Z-Wave for your network, resetting it will result inthe nodes in your network being orphaned and it will be necessary after the reset to excludeand re-include all of the nodes in the network.If this controller is being used as a secondary controller of Z-Wave in the network, use thisprocedure to reset this controller only in the event that the network primary controller ismissing or otherwise inoperable.AccessoryAC adapter