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A24-3031-3_1447_console


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                                                             File No. 1447-03
                                                            :Form A24-3031-3




Systems Reference Library




IBM 1447 Console

This reference publication contains a detailed
description of all models of the IBM 1447 Console.
Indicator lights, keys, dials and switches are described,
as well as operation of the console I/O printer.
Specific models of the IBM 1447 Console can be
attached to the following systems:
  IBM   1240   Bank   Data Processing System
  IBM   1401   Data   Processing System
  IBM   1440   Data   Processing System
  [BM   1460   Data   Processing System
The required and available special features, including
the IBM 1050 components, are also discussed.
Programming considerations for the 14:47, when used
with a 1050 system, are also included.
Major Revision, December 1964

This SRL publication, A24-3031-3, is a major revision of, and
obsoletes, A24-3031-2.




Copies of this and other IBM publications can be obtained through IBM Branch Offices
Address comments concerning the content of this publication to IBM Product Publications, Endicott, New York   13764
                                                                                                       Contents




IBM      14.:1~7    Console, Modell ..................... "......................................                       5
Indicator Light Panel............ ........... ................. ................. .........................              5
Operating Panel ....................................................."....................................               9


IBM 1447 Console, Model 2 ............................................................                                  15
Console I/O Printer ......................................................................................              15
Console Printer Operation ..........................................................................                    18


IBM 1447 Console, Model 3 ............................................................                                  22


IBM 14.:1~7 Console, Model 4 ............................................................                               23


IBM 1026 Transmission Control Unit ............................................                                         24


Special Features                         ............................................................................   25
Sense Switches (Models 1, 2, 4) ...............................................................                         25
Pin-Feed Platen (Models 2, 3, 4) .........................".......... ..........................                        25
1051 Modell Attachment ...........................................................................                      25
Buffer Feature .............. .................................................................... ........ ....        27
Remote-Terminal Attachment Feature (Unbuffered) ..............................                                          30
Remote-Terminal Attachment Feature (Buffered) ..................................                                        32


Programming Considerations ............................................................                                 37
Programming Routine ............................................ ".....................................                 37
Programmed Write to a Terminal ........................ ".....................................                          37
Polling and Receiving Operation ........................ ".....................................                         38


General Information, Remote-Terminal
  Attachment Feature ......................................................................... 40
1447 Printer Keyboard Polling .....................................................................                     40
Longitudinal Redundancy Check (LRC) ....................................................                                41
Programming, Remote-Terminal Attachment Feature ........ ......................                                         41
Remote-Terminal Operations ................................ ".....................................                      41
Addressing Operation ............................................."....................................                 42
Error Conditions and Condition Indicators ............ ............ ......................                              42
Remote 1050 Functions ..............................................................................                    43
Line-Control Characters ........................................ ".....................................                 43


Sample Program Loop for Troubleshooting...............................                                                  44


Index ........................................................................................................... 45
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