What do red channels signify on an SLM test?

Red channels on a Signal Level Meter (SLM) test indicate failed channels. When conducting tests on a cable network or digital communication infrastructures, different colors denote the status of the channels being evaluated. Red specifically highlights channels that have not met the expected performance criteria, signaling that there is an issue that needs to be addressed, such as signal loss, interference, or other faults impacting performance.

Understanding this color coding is crucial for technicians as it allows them to quickly identify and diagnose problems within the network, ensuring that any failures can be addressed promptly to maintain service quality. The successful identification of failed channels is integral to troubleshooting and maintaining a reliable communication system.