Detail Specifications of A 6000/Series 60 Interface Unit. Volume 1
HONEYWELL INFORMATION SYSTEMS INC MCLEAN VA FEDERAL SYSTEM OPERATIONS
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This specification defines the technical requirements for an interface unit IU which connects a host central system to a secured front-end processor SFEP. The IU transfers information across a single multiplexed channel according to IU command information contained in data control words. By using certified software resident in the central system and SFEP, the IU provides a method of handling multiple levels of security information. The IU provides a data format adapter capable of binary or ASCII operation which converts between a 36-bit central system word and a 16-bit SFEP word. An extended interface option is described which allows IUcentral system interface lengths to be increased to 2000 feet.
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