What are devices classed as certifiers used for in cable testing?

Devices classed as certifiers are specifically designed to verify that cable installations meet specific performance standards as defined by industry specifications. These certifications ensure that the cabling can handle the required data rates and performance levels for a specific category, such as Cat5e, Cat6, or higher.

When a certifier tests a cable, it performs a series of tests to check parameters like attenuation, crosstalk, and near-end crosstalk. If the cable passes all the tests, it is considered certified for that performance category, which is crucial for ensuring reliable network performance and adherence to installation standards.

While testing for physical damage, measuring network speed, or identifying cable lengths are important aspects of cable management and troubleshooting, they do not encompass the primary function of certifiers, which is to validate the installation against defined performance metrics.