The LinkRunner AT 4000 is an enterprise-grade network and cable tester, purpose-built for network engineers and senior technicians managing today’s complex hybrid infrastructures. Building on the LinkRunner AT 3000’s proven capabilities, the AT 4000 adds critical capabilities that define it as the higher-power option: comprehensive network discovery and topology mapping that reveals your infrastructure’s actual layout, fiber optic testing for validating optical links, and LANBERT media qualification testing

• Advanced network discovery and topology mapping.
• Comprehensive diagnostics and troubleshooting features, enhancing network visibility and operational efficiency.
• A robust set of automated tests for precise network validation and troubleshooting, ensuring seamless moves, adds, and changes.
• Supports LANBERT™ Media Qualification, a “soak test” designed to diagnose intermittent physical-layer issues that can be hard to detect with other tools.