Identify network ports instantly LED patch panle is equipped with LED indicator on each port. With LED patch panel and Signal Generator(1022-SF-13), you can instantly identify ports without removing panel wiring or shutting down system. No more cumbersome trial and error port search with tone generator and probe. Just connect Signal Generator to wall plate. LED indicator on patch panel instantly guide you to corresponding port. LED patch panel is a powerful port identification solution, especially when you are managing large scale networking.