Function code 7: Run RS-422 wrap test

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About this task

Note: This function is described here for information only. It is not supported on the IBM® TS2260, TS2270, or the TS2280 tape drive.

This test causes the drive to process a check of the circuitry and connector for the RS-422 interface. This connector supports the Library Drive Interface (LDI) and the Automation Drive Interface (ADI).

Before this function is selected, attach an LDI or RS-422 wrap plug to the drive 's LDI or RS-422 connector (in place of the LDI or RS-422 cable).

Procedure

  1. Make sure that no cartridge is in the drive, and the appropriate wrap plug is attached to the RS-422 connector.
  2. Place the drive in Maintenance mode. For instructions, see Entering Maintenance mode.
  3. Press Unload once per second until 7 appears in the Single-character Display (SCD). If you cycle past 7, continue to press Unload until the code is displayed again.
  4. To select the function, press and hold Unload for 3 seconds. After you select the function, 7 flashes and the drive automatically starts the test.
    • If no error is detected, the diagnostic test loops and begin again. To stop the loop, press Unload for 1 second and release. When the loop ends, 0 temporarily displays in the SCD, and the tape drive exits Maintenance mode.
    • If an error is detected, the Fault light flashes and the drive posts an error code to the SCD. To determine the error, locate the code in Table 1. To clear the error either turn the power off and then on again, or reboot the drive by pressing and holding Unload for 10 seconds.