Behringer Cable Tester CT100 Owner's Manual

2 CABLE TESTER CT100 User Manual

Congratulations! With the CT100, you have purchased an indispensable tool that 
enables you to easily check the most common cables used by musicians and sound 
engineers. Faulty cables are a common cause of failure in live and studio situations. 
This microprocessor-controlled device was designed to ensure fast, reliable problem 
location. Various test modes and the included belt clip add to its flexibility.

Insert one end of your cable into any OUT jack of the CT100. Connect the other end of the 
cable to any IN jack. The LEDs will indicate which input pins are connected to each output 
pin. Additionally, the GROUNDED SHIELD LED indicates whether a XLR OUT jack’s shield is 
connected to the pin 1/sleeve signal.

The following method allows you to detect intermittent connections caused by wire 
breaks or faulty solder points. While in CABLE TESTER MODE, press RESET to store the 
current cable-wiring display and to clear the INTERMITTENT LEDs. Move the cable 
vigorously in all directions and watch the LEDs. Any change in wiring or break in the 
signal flow will cause the LED of the corresponding input pin to light up. The LED will 
stay lit until RESET is pressed again, assuring detection of even the shortest breaks in the 
signal flow. It is a good idea to repeat the test after resetting the LEDs to double-check 
the initial results.

This mode enables you to test cables in fixed installations or situations that don’t allow 
you to connect both ends of the cable to the CT100.