... correspondingly double-twisted cables 1,2,3,4,5,6,7,8andG,meanwhile can judge wrong connection,short circuit and open ... :1-4-3-2-5-6-7-8-GFollowing are abnormal connections:1.If one cable,for example cable NO.3is open circuited,the ... a cable is disordered,for example NO.2andNO.4,then displays 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 ...