Mylex FlashPoint BT-930, Руководство по установке и инструкция пользователя

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Small Computer System Interface (SCSI)
Manual No. 3000863 A-3
What is a Daisy Chain Configuration?
A daisy chain is where the bus is created by attaching the first device in the
chain to the second device and the second device to the third device and so
on until all the devices are chained together.
What is a SCSI ID?
A SCSI ID is a unique identifying number ranging from 0 to 7. (0-15 for
Wide SCSI) This number is assigned to a SCSI device on the SCSI bus. The
SCSI ID identifies the device and determines the priority of the device on the
SCSI bus. The priority of the device on the bus is important when more than
one device attempts to access the bus at the same time. The higher the SCSI
ID number the higher the priority of the device during bus access. The
FlashPoint adapter is preassigned SCSI ID 7, giving it the highest SCSI bus
priority.
What is termination?
Termination is an electrical characteristic of a SCSI bus. In order for devices
to transmit and receive data and signals reliably over the SCSI bus, the bus
must be properly terminated at both ends.
Devices can be terminated in a variety of way:
• The FlashPoint adapter supports SmartTerm. This means that the
FlashPoint adapter determines where it is located in the daisy chain and
either enables or disables its own termination as required.
• Peripheral devices can be terminated using a several different methods.
Some require termination plugs, thumb wheel setting, and/or DIP
switches. Refer to the documentation that accompanies the device to
determine what the termination method is. If the device occupies either
end of the daisy chain, it must be terminated properly in order for the
SCSI bus to function properly.
What kinds of terminators are there?
For external devices there are SCSI-1 and SCSI-2 type terminators. Standard
SCSI-1 terminators fit into Standard SCSI-1 connector receptacles. SCSI-2
terminators fit into SCSI-2 receptacles.