What tool is commonly used for detecting faults in cable installations?

A cable fault locator is specifically designed to identify and locate faults within cable installations, such as shorts, opens, and other issues that interrupt the proper operation of cables. This tool works by sending a test signal through the cable and measuring the response, which allows technicians to pinpoint the exact location of a fault based on the signal's behavior along the cable.

In contrast, other tools like a multimeter measure voltage, current, and resistance, but do not provide the specific analysis needed to locate faults over distances in cables. A signal generator primarily produces signals for testing purposes rather than pinpointing faults in existing installations. Lastly, a logic analyzer is used for analyzing digital signals and timing in circuits but is not designed to detect faults in cables. Thus, the cable fault locator stands out as the most appropriate tool for identifying issues in cable systems.