Can test correspondingly double-twisted cables 1, 2, 3, 4, 5, 6, 7, 8andG, meanwhile,. Can judge wrong connection, short circuit and open circuit.. Can tests RJ 11and RJ45.
Test of double-twisted cables: Switch on the power. (S is slow automatic grade, Mis manual. ) Put cables into both main tester and remote tester. The lights of the main tester will turn on sequently form 1 to G.