... Tester/RJ45 tester/cable tester/network cable Can test correspondingly double-twisted cables 1,2,3,4,5,6,7,8 and G, Network Tester/RJ45 tester/cable tester ... . If one cable, for example cable NO.3is open circuited, the two NO.3lights of themain tseter and remote tester will not turn ... . If two ends of a cable is disordered, for example NO.2and NO.4, then displayson: Main tester: 1-2-3-4 ...