The Ideal 158051 is a kit of twenty four RJ-45 identifier units labeled 1-24 for the VDV II voice and data video testers. The identifier units enable any of the VDV II tester units to locate and identify up to 24 8P8C RJ-45 jack/port locations from a single centralized drop location. The units are useful for identifying which cables are connected to which ports in a patch panel or for identifying jack/room locations in a multi-drop installation. Ideal Industries was started in 1916 by J. Walter Becker. His belief that every product should be worth more than the price paid for it has been the core IDEAL business principle for over 90 years. Today, the many loyal distributors and customers that make IDEAL successful are a testament to Becker"s original philosophy.