1, Cable Tester for UTP STP RJ45,RJ11,RJ12 2, UL,CE,RoHS certificate Cable Tester Description: Specification: ... for shorts/open/mis-wiring2, USOC4/6/8 testing3, RJ45/RJ12/RJ11 connector capability4, Designed to test intentionally crossed pairs or straight ... our website: www.nbsystm.com Cable Tester for UTP STP RJ45,RJ11,RJ12