Test of double- cables: Switch on the power. (S is slow automatic , manual.) Put cables into both main tester and remote tester. The lights of the main tester will turn on sequently form 1 to G.<br> Main tester: -4-5-6-7-8-G<br> Remote tester: -4-5-6-7-8-G RJ45 -4-5-6 RJ11<br> Following are abnormal connections:<br> If one cable, for example cable NO.3 is open circuited, the two NO.3 lights of the main tseter and remote tester will not turn on.<br> If cables are not connected, lights will not turn on respectively. If less than two cables are conntected, none of the lights is on.<br> If two ends of a cable is disordered, for example NO. 2and NO. 4, then displays on:<br> Main tester: -4-5-6-7-8-G<br> Remote tester: 1-4-3-2-5-6-7-8-G<br> If two cables are short circuited, neither of the corresponding lights is on of the remote tester while main tester remains unchanged. If cables, including , are short circuited, none of the corresponding liaghts is on.<br> If test panels or wall plate outlels, two cables which can match each other (RJ45) will be connected to the tester.<br> If test cables of the same axes, BNC turns on when the cable works.<br> size:about 103x97x27mm<br> Material:ABS<br> colour:Black<br> Contents:<br> 1 x M469D RJ45 Cable lan tester<br> Only the above content, other are not included.<br> Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.