List of Specific Industries
North American Industry Classification System (NAICS) codes for this industry
[ 423690 ] = Other electronic parts and equipment merchant wholesalers – Computer boards, unloaded, merchant wholesalers; Computer chips merchant wholesalers; Printed circuit boards merchant wholesalers; circuits, integrated, merchant wholesalers; Electronic parts (e.g., condensers, connectors, switches) merchant wholesalers; Semiconductor devices merchant wholesalers; Transistors merchant wholesalers; Unloaded computer board merchant wholesalers
[ 541512 ] = Computer systems design services – Local area network (LAN) computer systems integration design services
Network functional preparation and testing cannot anticipate all real-world situations in the home. It will, however, verify that sub-assemblies and component build, test, and evaluation processes are working properly. It will also demonstrate the successful completion of all previous design and preparation steps.
Everything that will be used in the home is assembled and connected in a way that mimics the actual home installation. Home blueprints are used to duplicate distances between wireless components. Dummy cable boxes will simulate approximate, installed cable lengths. Each dummy cable box contains the same cable that will be used in the home; each has a spool with different lengths of cable on it, and the cable is terminated with the same connectors as will be used in the home. Dummy boxes simulate actual performance of the cable in the home. When testing is performed on cable runs installed into the home, tester results will show approximately the same resistance, impedance, capacitance, cross-talk, and other characteristics as tests on the dummy cable box had shown.
Similar testing for wireless applications is more difficult, because the effects of foundations, walls, furniture, wiring, and dynamic interference (operating devices, generated fields cause by motors in use, atmospheric conditions, etc.) must be considered. Dummy partitions, enclosures, and various test stands can simulate anticipated situations in the home.