... performance For RJ45,RJ12,RJ11&BNC1.Functions:1.Can test correspondingly double-twisted cables 1,2,3,4,5, ... RJ45 and BNC,ST-248 tests RJ45 and BNC.ii.Test of double-twisted cables;switch on the power.(s ... ,none of the corresponding liaghts is on.iii.If test patch panels or wall plate outlels,two cables which ... RJ45)will be connected to the tester.iv.If test cables of the same axes,BNC turns on when ...