There must be a SCSI terminator on the end of this cable. Some terminators are
plugged into the last position of the internal cable. Some terminators are built onto
the cable and can not be removed. Some terminators are built into the SCSI device.
Still others can be built on to a backplane within the system unit. You need to
understand your internal installation, in detail, in order to determine where and how
to attach the internal SCSI terminator.
Important: You can attach an internal cable to only one of the adapter's two internal
connectors at any time.
External Cabling
You can attach either narrow (8-bit) or wide (16-bit) SCSI devices to the external
68-pin connector.
You must have the proper SCSI cable to correctly attach a device. Narrow devices
use a cable with a 50-pin connector on the device end and a 68-pin connector on the
adapter end. Wide devices use a cable with a 68-pin connector on both ends.
SCSI specifications limit total cable length to 6 meters (approximately 20 feet). Total
cable length of the SCSI chain includes internal and external cabling.
If you use a fast synchronous device, such as a narrow SCSI disk that can transfer
up to 10 MB/second of data or a wide SCSI disk that can transfer up to 20
MB/second of data, the maximum cable length is limited to 3 meters (approximately
10 feet).
For more information on connecting SCSI devices to the adapter, see Appendix A,
“Connecting SCSI Devices to the Adapter” on page A-1. Refer to Appendix B,
“Cable Choices” on page B-1 for more information on cables choices.
2-2
PCI SCSI-2 Fast/Wide Single-Ended Adapter Installation Guide
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