... cable test, optical power measurement, PPPoE connection, FTP, WEB browser... Features:Handheld, portable, high-capacity Lithium battery. Color touch ... , optical power measurement. Support PPPoE connection, FTP, WEB browser. Support ADSL and POE test. Data loopback function at ... maximum rate, line attenuation, etc. FTP download, WEB browser function. Cooperation test, use remote unit to cooperate with ...