HP (Hewlett-Packard) - 69431A

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Contents

HP Part No 69431 90001 December 1971 SECTION I GENERAL INFORMATION 1 1 INTRODUCTION 1 2 This instruction manual contains operating and service instructions for Digital Input Card Model 69431A gt The card is designed specifically for use in the 694QA Multiprogrammer and 6941A Muitiprogrammer Extender units to receive 12 sep arate digital logic level inputs from a user s exter nal device As shipped from the factory the inputs to the 6943 1A card can be either negative true Option 069 or positive true Option 073 microcir cuit logic levels or open collector negative true Option 070 logic levels In addition to the 069 073 and 070 options the digital input card can also be modified to satisfy a wide variety of cus tom interface requiremen ...