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Appendix B
154
Exabyte 440 and Exabyte 480
Considerations for installing the library on the
SCSI bus
This section provides the basic rules and considerations for setting
up the library on the SCSI bus.
Single-ended, LVD, or HVD
Every SCSI device attached to the SCSI bus must be compatible:
either single-ended or low-voltage differential (LVD) or all
high-voltage differential (HVD). On a single-ended SCSI bus, one
signal line is used to transmit a bus signal between devices. On a
differential bus, two signal lines are used. If your library is
single-ended or LVD, then all devices you install on the SCSI bus
must also be single-ended or LVD; if your library is HVD, all
devices must be HVD. These other devices include the tape drives
installed in the library, the adapter card installed in your host
computer, and terminators.
Note
:
Be aware that if you connect single-ended and LVD
devices on the same bus, all devices on the bus operate as
single-ended devices.
CAUTION
Do not connect an LVD library to an HVD SCSI
bus, you may damage the devices attached to the
bus.