New, box has been opened, box has minor damage
The Monoprice MCT-108 RJ11/RJ45 tester is a simple, yet powerful, tool that helps troubleshoot network and telephone cables for broken wires and crossed connections. The following operating instructions supersede the instructions contained in the enclosed operator's manual. To test a cable: 1. Insert one end in the appropriate jack on the Master unit and the other in the same type jack on the Remote unit.
IMPORTANT! DO NOT CONNECT TO A CABLE THAT IS PLUGGED IN TO A LIVE CIRCUIT AS THIS MAY CAUSE DAMAGE TO THE TESTER OR OTHER EQUIPMENT ON THE CIRCUIT! 2. Move the tester power switch to the On or S position. For best results, use the Slow Automatic mode to perform the test, as this gives time to watch the light sequence and ensure that the same LEDs illuminate on the Master and Remote simultaneously. 3. Watch the LEDS on both the Master and Remote units. Under normal conditions, using a straight-through RJ45 cable in good condition, the LEDs will simultaneously illuminate in the sequence 1-2-3-4-5-6-7-8-G on both the Master and Remote units. Note that when testing RJ11 or RJ12 cables with a 6P6C connection, only the LEDs 1-6 will illuminate. If using a 4P4C connection, only the LEDs 2-5 will illuminate. This product requires a 9 volt battery, which is not included!