Scsi Cable Quality Guidelines; Scsi Id Guidelines; Scsi Termination Guidelines For External Devices; Connecting An External Scsi Drive - Intergraph InterServe 80 SL System Reference Manual

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SCSI cable between the system and the first device
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SCSI cable between each device

SCSI Cable Quality Guidelines

To ensure data integrity and optimum performance, do the following:
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Use only Intergraph Computer Systems SCSI cables. Cables from other vendors may
not provide adequate shielding.
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Use the shortest cables possible to connect SCSI devices to the system and to each other.

SCSI ID Guidelines

By default, specific devices use the following SCSI IDs:
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System disk drive (standard) uses ID 0
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SCSI controller always uses ID 7
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Read/write CD-ROM (optional) drive uses ID 4
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4 mm DAT drive (optional) uses ID 6
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Iomega Jaz drive (optional) uses ID 6
NOTE To easily determine the ID of each SCSI device on the system, restart the system. When the
BIOS screen displays, look for the list of SCSI devices and write down the ID for each device.
Some SCSI devices feature push switches to set the ID, while others have DIP switches or
jumpers. See the vendor documentation for details on setting the ID.

SCSI Termination Guidelines for External Devices

Follow the guidelines below for terminating SCSI devices:
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Enable termination on the last external drive on the SCSI cable chain.
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Disable termination on all other external drives on the SCSI cable chain.
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Use only an active terminator on externally-terminated devices.

Connecting an External SCSI Drive

To connect an external SCSI drive:
1. Connect one end of the external SCSI cable to the back of the optional SCSI card.
2. Connect the other end of the cable to the SCSI device.