27 22 00
Data Communications Hardware
27 21 33
Data Communications Wireless Access Points
27 21 29
Data Communications Switches and Hubs
27 21 26
Data Communications Network Management
27 21 16
Data Communications Routers, CSU/DSU, Multiplexers, Codecs, and Modems
27 21 13
Data Communications Firewalls
27 21 00
Data Communications Network Equipment
27 20 00
Data Communications
27 16 19
Communications Patch Cords, Station Cords, and Cross Connect Wire
27 16 16
Communications Media Converters, Adapters, and Transceivers
27 16 13
Communications Custom Cable Assemblies
27 16 00
Communications Connecting Cords, Devices, and Adapters
27 15 43
Communications Faceplates and Connectors
27 15 33
Communications Coaxial Horizontal Cabling
27 15 23
Communications Optical Fiber Horizontal Cabling
27 15 13
Communications Copper Horizontal Cabling
27 15 01.53
Antennas Communications Horizontal Cabling
27 15 01.49
Intermediate Frequency/Radio Frequency Communications Horizontal Cabling
27 15 01.46
Paging Communications Horizontal Cabling
27 15 01.43
Nurse Call and Intercom Communications Horizontal Cabling