Text preview for : GA21-9124-1_3505_Card_Reader_and_3525_Card_Punch_Subsystem_Mar71.pdf part of IBM GA21-9124-1 3505 Card Reader and 3525 Card Punch Subsystem Mar71 IBM 35xx GA21-9124-1_3505_Card_Reader_and_3525_Card_Punch_Subsystem_Mar71.pdf
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IBM 3505 Card Reader and
IBM 3525 Card Punch
Systems Subsystem
This reference publication describes the IBM 3505 Card
Reader with its self-contained control unit and the IBM
3525 Card Punch, which can be attached to the 3505
control unit. The manual describes the operation of the
subject devices operating as a subsystem to the IBM
System/370. The manual is designed for those having
a basic knowledge of programming and computer opera-
tions. The manual covers such subjects as device timings,
throughput rates, features, commands, suggested error
recovery procedures, and other programming and operating
information.
For additional information, refer to the Bibliography of
the system to which the subsystem is attached.
Second Edition (March 1971)
This is a reprint of GA21