IBM PCI Dual Channel Ultra2 SCSI Adapter, Инструкция по установке и эксплуатации

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Determining Cable Needs
External Cable Connectors:
External SCSI devices are manufactured with a
variety of connectors. Ensure you have cables with the appropriate connectors for
each external 8 or 16-bit device in your planned SCSI chain.
For either external 8 or 16-bit device, the cable end that attaches to the adapter is an
internal, 68-position, high-density plastic D-Shell connector. The device end varies
with the type of device you are attaching.
Ÿ
LVD subsystems come with a cable having a VHDCI connector to attach to the
adapter.
Ÿ
Attach a VHDCI to P Shell convertor cable to the adapter to allow single-ended
8 or 16 devices to be attached with their cables.
External Cabling:
Review the following list of SCSI cable connections to correctly
attach your device.
Ÿ
An LVD subsystem uses a cable with a 68 pin VHDCI connector on both ends.
Ÿ
An 8-bit device can be attached using a 50-pin to 68-pin interposer, an 8-bit or a
16-bit SCSI cable, attached to a VHDCI to a P-Shell converter cable.
Ÿ
A 16-bit single-ended device uses a cable with an internal, 68-position,
high-density plastic D-Shell connector on both ends. The 68 pin connector
attaches to the converter cable which plugs into the adapter.
SCSI specifications limit the total cable length attached as a function of SCSI bus
speed as follows:
Ÿ
To attach an LVD subsystem running at Ultra2 speed (80 MBPS), the maximum
cable length is 12m.
Ÿ
To attach an Ultra, 20MHz, synchronous device such as a 16-bit SCSI disk drive
that can transfer up to 40 megabytes per second of data, the maximum cable
length is limited to 3 meters (approximately 10 feet). Up to two devices can be
attached.
Ÿ
To attach a fast, 10MHz, synchronous device (such as a 8-bit SCSI disk that can
transfer up to 10 megabytes per second of data or a 16-bit SCSI disk that can
transfer up to 20 megabytes per second of data) the maximum cable length is
limited to 3 meters (approximately 10 feet). Up to two devices can be attached.
For information about connecting SCSI devices to your adapter, see Appendix A,
“Connecting SCSI Devices to the Adapter” on page A-1.
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PCI Dual Channel Ultra2 SCSI Adapter Installation and User's Guide