0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
1. The design principles, physical configuration, functional organization, operational procedures, and data formats used as the bases for the design, construction, modification, and operation of a communications network. (188) 2. The structure of an existing communications network, including the physical configuration, facilities, operational structure, operational procedures, and the data formats in use. (188)