IBM SY22-2909-2 1052 Adapter and 2150 Console FETOP Jan69 free download

File name SY22-2909-2_1052_Adapter_and_2150_Console_FETOP_Jan69.pdf

ll) ~5~ Field Engineering Theory of Operation 1052 Adapter and 2150 Console SY22-2S0S-2 PREFACE This manual describes the operation of the IBM 1052 channel and the IBM 1052 Printer-Keyboard is Printer-Keyboard Adapter for the IBM System/360. assumed. The adapter is assumed to be connected to the The Field Engineering Instruction-Maintenance computer through a multiplexor channel. Manual, IBM 1052 Keyboard Printer, Form 225-3179, Introductory material in the first chapter describes may be used as supplementary reference material. the data flow and control of the adapter. The func- (Descriptions of the mechanical functions of the key- tional units chapter describes the clock, translators, board and printer presented in Form 225-3179 are registers, and controls. The theory of operation valid for the 1052 adapter; however, the descriptions chapter presents the circuit details, by operation, in of operations were written for the IBM 1050 Data positive logic form. Communications System, and do not apply to the 1052 This manual is written to engineering change level adapter.) Descriptions of the 1052 operations for the 254147. Future engineering changes may alter the 1052 adapter are included herein. logic operations. Prior knowledge of the multiplexor MAJOR REVISION (May 1966) This manual, Form Y22-2808-0, is a major revision of the pre- ceding edition, Form 223-2808-0. This revision applies to the new reduced function printer and updates the manual to engineering change level 254151. This change makes the sequencing of th~ read/write clock in the control unit dependent on the printer's mechanical cycle, eliminates the tab, backspace, and line-feed operations, and forces the printer to space in the event an operator tries to shift the printer to the same case the type head is in. In addition, information on the 2150 console has been added as a separate section following the 1052 adapter information. The two sections are indexed separately. MINOR REVISION (Feb 1967) This is a minor revision of publications Form Y22-2808-0 incor- porating FES S23-4034-0 dated 7/21/66, affecting Contents page, illustrations, and pages 34, 61, 62, and 70. MINOR REVISION (Jan 1969) This is a minor revision of Y22-2808-1 incorporating changes released in FE Supplement Y27 -2208, affecting contents page and pages 5, 6, 9, 10, 23 through 30, 33 through 36, 47, 48, and 53 through 69. Other minor changes are indicated by revi- sion bars on pages 33 and 52. A form is provided at the back of this publication for rea