4 in - 1 Phone Network Remote Cable Tester, RJ45 RJ11 BNC Test 4 types of cables RJ 45 RJ 11 USB and BNC Test installed wiring or patch cables Tests shielded (STP) or unshielded (UTP) LAN cables Test shields in USB cables can be tested from 2 remote points Beeper provides audible annunciation of test results Remote unit stores in the Main unit. BNC terminator 25 50 Ohm indications Straight or crossover