... network, coaxial cable and telephone line Applicable for open circuit, short circuit, jumper wire, reverse connection or cross-talk interference Dynamically ... visual field 61.6 x 25.2 mm) Type of Tester Cable: STP / UTP twin twisted cable, coaxial cable, ... telephone line Tester Port Tester RJ45 master port (M), tester LOOPBACK RJ45 port (L), far-end recognizer ...