Basetech bt 200 cable tester for rj 45 rj 11 bnc basetech bt 200 p the basetech bt 200 is a cable tester for unshielded utp or shielded stp ftp rj 45 modular plug systems up to cat7 respectively rj 11 rj 12 modular plug with 2 to 6 cores each core of the connected cable is individually tested and the allocation is shown on a clearly arranged bar graph display p p the test sequence is automatic the allocation of the cores respectively potential errors such as interruption and s