Encryption device interlock

Claim 1

An interlock system for use with a cable assembly in a security-type electronic device comprising: access cover means, said cover means including a well-like structure having outwardly projecting sides, the innermost portion of said well having two sections, a first of said sections being comprised substantially of a first opening through said cover means, the second of said sections having a second opening and at least one additional recessed opening therein, an interlock plate having a generally "U" shaped configuration, the opposite legs of said plate having respective slotted sections, said cable assembly to be interlocked including connector means, said connector means having oppositely disposed flanges for respective positioning within said slotted sections of said interlock plate, fastener means operative through said recessed opening in said second well section for affixing said cover means to said device, the combined interlock plate/cable assembly being subsequently operatively disposed within said well, said connector means being accessible from within said device through said first opening, said fastener means being obscured from external view by said interlock plate, an electrical switch associated with said device, said switch having actuating means protruding through said second opening, said interlock plate contacting said switch actuating means when operatively disposed within said well and establishing thereby a predetermined electrical condition within said device which permits the input and storage of security-type information, the removal of said interlock plate with its cable assembly terminating said electrical condition, and resulting in the destruction of the stored information.