... 5, 6, 7, 8 and Ground 4, Capable to judge wrong connection, short circuit and open circuit 5, Cable Tester for RJ11, RJ12, RJ45, Cat ... 5e, Cat 5, 10/100 Base-T, ... AT&T 258 A, TIA-568A/568B etc.6, It can easily clarify cable ... Content:1, 1 x LAN Network/Phone Cable Tester RJ11 RJ12 RJ45 Cat5 2, 1 x ...