Product description 1. Intelligent network cable tester NF-802 is an intelligent network cable tester, uses advanced digital demodulation to realize anti-interference and no noise tracing cables, functions of wiremap, cable tracing, crimping, and port flash. It can test the polarity recognition of the telephone line, standby, off-hook, ringing, and LED indicator in different states. A tool for installation and maintenance of integrated wiring and weak current systems. 2. Cable tracing: ~1) Short pre the emitter "scan" to enter wiremap/scan mode. The indicator of the scanning button is on. ~2) After selecting the mode, connect the network cable/telephone cable to be tested to the RJ45/RJ11 port of the emitter. ~3) Turn the receiver knob clockwise to turn on, adjust the sensitivity of the received signal to the maximum, use the receiver probe to approach the cable, when the receiver receives the signal, the receiver emits a "Beep beep" sound, and the receiver line sequence light turns red indicating the signal strength. The stronger the received signal, the louder the sound and the more the lights are on. so the approximate position of the cable can be quickly located. ~4Note: The line sequence light of the receiver is green to indicate the wiremap result, and red to indicate the strength of the received signal. 3.Specifications Emitter ~Suitable for network cable:CAT5 CAT6 ~supportAnti-jamming scanning ~Low battery prompt:Below 3.3V+0.1V power indicator flashes ~Scrimpingresponse speed: