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Stand Alone Test Panel for Magnetic Tape Units

IP.com Disclosure Number: IPCOM000053240D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Andrews, LP Heath, CA Mead, JE [+details]

Abstract

This test panel is connected to the input/output buses of a multiple channel data storage type of magnetic tape unit and enables stand-alone testing of the tape unit. A selector switch in the test panel enables the test panel and disables the normal connections to the tape unit from the remainder of the data processing system. The test panel records a test pattern on the magnetic tape with the tape unit operating in a write mode. The recorded segment is then played back, and the test panel checks the timing of the signals reproduced from a selected channel on the tape. This playback process is repeated to check the other tape channels.