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2.2 The IBM 7171 ASCII Device Attachment Control Unit - Index of

2.2 The IBM 7171 ASCII Device Attachment Control Unit - Index of

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4. Any invalid characters that are typed in response to the ENTER TERMINALTYPE message will be displayed in this field. This is to aid in locating certainterminals. For instance, if a unique character sequence was typed in responseto the ENTER TERMINAL TYPE message, such as "xxxxx," the "xxxxx"would show up in the Ports response, and the device number <strong>of</strong> the terminal inquestion could be identified.Error Messages:Invalid TC board specified.TC not inserted.9-26 <strong>IBM</strong> <strong>7171</strong> Reference Manual and Programming Guide

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