User's Guide

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You can use one of the library's serial ports and a console interface
program (such as CHSTERM) to access the library firmware. The
console interface, also referred to as the
Diagnostic Console
, allows you
to view information about the library, perform diagnostics tests, create
diagnostic listings, and download new firmware. You can also use the
library's serial ports to perform diagnostics on the tape drives.
The following table illustrates the functions you can perform using the
serial ports. As the table indicates, unless you want to control the motion
of the CHM, you do not need to switch to 9-Pin or 25-Pin Serial Port
control mode (or to 25/9 Pin control mode).
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Rotates the drum assembly 180
degrees.
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