American Telephone & Telegraph Company, Engineering Director Data Communications, 1964 and 1967, 21 pages and 10 pages, double-column text, illustrations and some photographs.
Condition: Very Good, 8.5x11 turquoise-blue cardstock covers, softcover, with white lettering on covers and white along spine margins; hole-punched at margins, stapled bindings are secure, pages clean and unmarked.
Categories: 1960's computers and computing, Databooks, Handbooks, Manuals, General microcomputer and Misc. manufacturers, Hardware, Human-Computer Interaction, Technical Journals, Proceedings, Conferences, Bell System Technical Journals, BSTJ 1960 - 1969, Miscellaneous, Word Processing, Data Processing
See all items by Bell System Data Communications Technical Reference
Item DescriptionIncludes two Technical Reference manuals -- Data Sets 402C and 402D Interface Specification, November 1964 AND Data Set 103A Interface Specification, February 1967
Includes sections on interface - connector, transmitter, receiver, sequence of manipulation for data communication, establishing a Data-phone service call, point-to-point private line service, multi-point private line service and more; Applications - locations, telephone lines, reverse channel, coonection of data sets to the same line etc; Operation, Grounding, Compatibility, testing, performance, functional description, comparison with earlier models
and pin assignments, circuit functions, modulation rate, controls, system operation, return to voice mode, much more.