SCSI Bus Access Failure
The Channel Mode LED will blink amber four times and the speaker will sound four tones. This indicates that either the SCSI controller failed to respond to a reset command or another device has control of the SCSI bus.
Note that this may be caused by other devices having control of the bus at the time the DEU is powered ON. After the tones have sounded, there will be a two second delay, and the microprocessor will again attempt to initialize the SCSI controller. Turning the system OFF then ON again may help resolve this condition. Normal operations will be impossible while the SCSI controller remains unresponsive.
All drive LEDs will be solid green regardless of the error conditions. The DEU needs to be serviced if this error occurs consistently and is not cleared by cycling the power on the DEU. Contact Technical Support.
Note: The DEU will not respond to the software if this error occurs.
PRINTER NOTE: Page size 9” x 9.25”. Align this page to top, right hand corner. Back box bleeds off top and right edge. Left side of page extends to 9.25 inches.