protected distribution system (PDS)

protected distribution system (PDS): [A] wireline or fiber-optics telecommunication system that includes terminals and adequate acoustical, electrical, electromagnetic, and physical safeguards to permit its use for the unencrypted transmission of classified information. [NIS] Note: A complete protected distribution system includes the subscriber and terminal equipment and the interconnecting lines. Deprecated synonym approved circuit.

This HTML version of FS-1037C was last generated on Fri Aug 23 00:22:38 MDT 1996