... correspondingly double-twisted cables 1,2,3,4,5,6,7,8andG,meanwhile can judge wrong connection,short circuit ... 4-3-2-5-6-7-8-GFollowing are abnormal connections:1.If one cable,for example cable NO.3is open ... on:Main tester:1-2-3-4-5-6-7-8-GRemote tester:1-4-3-2-5 ... -6-7-8-G4.If two cables are short ... of the same axes,BNC turns on when the cable works. network tester TP-NT-003