IBM 2420 7 Manufacturer’s Information Brochure page 2

Preface
This manual is for use by designers and engineers when
designing devices which will interface with the IBM 2420
Model 7 Magnetic Tape Unit. It contains all electrical,
mechanical and cabling requirements necessary for Model 7
operation. The reader's detailed knowledge of computer
techniques and terminology is assumed.
First Edition (October, 1968)
Changes axe periodically made to the specifications herein; any changes will
be reported in subsequent revisions or Technical Newsletters.
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This manual was prep axed by IBM Systems Development Division, Product
Publications, Depaxtment 265, PO Box 1900, Boulder, Colorado 80302.
A fonn is provided at the back of this publication for reader's comments.
If the fonn has been removed, comments may be sent to the above address.
Requests for copies of IBM publications should be made to your IBM
representative or to your local IBM branch office.