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COMMUNICATIONS (52)

The database is arranged as a hierarchy. For example, the value of a Level-3 equipment category is equal to the sum of its Level-4 subcategories.  A category's level can be determined by the number of non-zero digits.  For example TELECOMMUNICATION (521000) is a Level-3 category.

 

5-2-0-0-0-0 COMMUNICATION                    

5-2-1-0-0-0 TELECOMMUNICATION             

5-2-1-1-0-0 CENTRAL OFFICE SWITCHING           

5-2-1-1-1-0 CLASS 1-2-3-4-5                             

5-2-1-1-9-0 OTHER CENTRAL OFF             

5-2-1-2-0-0 TRANSMISSION                       

5-2-1-2-1-0 CARRIER                                

5-2-1-2-2-0 MULTIPLEX

5-2-1-2-9-0 OTHER TRANSMISSION

5-2-1-2-9-1 VOICE FREQUENCIES

5-2-1-2-9-2 FIBER OPTIC

5-2-1-3-0-0 WIRE & VOICE AND DATA NETWORKS

5-2-1-2-9-0 OTHER TELECOMMUNICATIONS EQUIPMENT

5-2-2-0-0-0 RADIO COMMUNICATION

5-2-2-1-0-0 AIRBORNE & MARINE

5-2-2-3-0-0 WIRELESS NETWORKS

5-2-2-3-1-0 CELLULAR TELEPHONES

5-2-2-3-2-0 CELLULAR BASE STATIONS

5-2-2-3-3-0 CELLULAR MOBILE SWITCHING

5-2-2-3-9-0 OTHER WIRELESS NETWORKS

5-2-2-4-0-0 AMATEUR RADIO

5-2-2-5-0-0 CITIZEN BAND

5-2-2-6-0-0 LAND MOBILE BASE STATION

5-2-2-9-0-0 OTHER RADIO COMMUNICATIONS

5-2-3-0-0-0 MICROWAVE

5-2-3-1-0-0 TERRESTRIAL

5-2-3-2-0-0 SATELLITE

5-2-3-2-1-0 EARTH STATION

5-2-3-2-2-0 SPACE SEGMENT

5-2-5-0-0-0 NAVIGATION

5-2-6-0-0-0 BROADCAST

5-2-6-1-0-0 AUDIO

5-2-6-2-0-0 VIDEO

5-2-6-3-0-0 CATV

5-2-6-9-0-0 OTHER BROADCAST

5-2-8-0-0-0 END USER EQUIPMENT

5-2-8-1-0-0 SWITCHING

5-2-8-1-1-0 PABX

5-2-8-1-9-0 OTHER SWITCHING

5-2-8-3-0-0 VOICE

5-2-8-3-1-0 TELEPHONE SET

5-2-8-3-9-0 OTHER VOICE

5-2-8-3-9-1 VOICE MAIL

5-2-8-3-9-2 VOICE RESPONSE

5-2-8-3-9-3 OTHER CALL PROCESSING

5-2-8-3-9-4 PHONE ATTACHMENT

5-2-8-4-0-0 IMAGE/MESSAGE

5-2-8-4-1-0 FACSIMILE

5-2-8-5-0-0 VIDEO

5-2-8-5-1-0  CCTV

5-2-8-6-0-0 TELEMETRY

5-2-8-9-0-0 OTHER END USER

5-2-9-0-0-0 OTHER COMMUNICATION

 

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