Service Manuals, User Guides, Schematic Diagrams or docs for : IBM 360 fe 2050 SY22-2909-2_1052_Adapter_and_2150_Console_FETOP_Jan69
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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 reader's comments. If the form
has been removed, comments may be addressed to: mM Systems Development Division,
Product Publications, Dept. 520, Neighborhood Road, Bldg 960-1, Kingston, N. Y., 12401
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