COMMUNICATIONS

The database is arranged in the same hierarchy as that used by Electronic Outlook Corporation (EOC).  The value of a Level-2 equipment category is equal to the sum of the Level-3 categories shown below.  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             

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

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

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

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

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

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