... , 2, 3, 4, 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 ... on both remote and master unit 9, Auto scanning function for rapid testing. 10, Grounding Test 11, Build in power ... perfect service,lowest price". Welcome to our website: www.nbsystm.com