1. RFN 2400 RX RFN 2400 RX RFN 2400 RX RFN 2400 RX RFN 2400 1 5 RFN 2400 2 4GHz E 2. RF N 2400 RFN 2400 TX OK LED on off LED LED 2 on off 15 4 4 2 ee RFN 2400 RX DC5 LED RFN 2400 RX DC5V EG DC LED AC 2 a fats RFN 2400 RX on off LED on off 15 EE 3 5mm N 3 3 2