... Power0~30dBm,software configurableCommunicationInterfaceStandard RS232 ,RS485,RJ45Output PortGPIO outputReading RangeDepends on antenna gain,connect 12dBi antenna, the reading distance,above 8 ... 1-LED7 , LED 1-4 shows working status , LED 5 shows tags are readsuccessfully, LED 6 shows reader is working , LED 7 shows power statusSignalBuzzer ...