Adaptec AHA-2742T User Manual - Page 32

Quick Installation

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Getting Started Quick Installation The following installation procedures are intended to help experienced users quickly install the AHA-2740 Series of host adapters into an EISA computer system. If you are new to computer peripheral installation or would like more information, refer to the more comprehensive instructions and illustrations found in the Installation section of this chapter. Prepare Your SCSI Devices Before you physically install the host adapter and connect the SCSI devices, you must prepare your SCSI devices for installation on the SCSI bus: ® 1 Terminate the endpoints of the SCSI bus. Identify which two SCSI devices (including the host adapter) will form the physical endpoints of your SCSI bus. These devices at the ends of the SCSI bus must have a set of resistors called terminators either installed or enabled. All other SCSI devices installed between the ends of the SCSI bus must have their terminators either removed or disabled. Enabling or disabling host adapter termination is software selectable only. The factory installed bus terminators on the AHA-2740 Series are enabled by default. To disable termination on the host adapter, refer to Chapter 3, Configuring the Host Adapter for instructions. Refer to the SCSI device documentation for information on enabling or disabling SCSI termination on other SCSI devices. 2 Verify that each SCSI device located on the SCSI bus is set to a unique SCSI ID (0-7). The default value for your host adapter is SCSI ID 7. Refer to Chapter 3, Configuring the Host Adapter for instructions on changing the SCSI ID for the host adapter. Refer to the SCSI device documentation for information on changing the SCSI ID on other SCSI devices. 2-5 Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 2-5) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93

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Quick Installation
The following installation procedures are intended to help experi-
enced users quickly install the AHA-2740 Series of host adapters
into an EISA computer system.
If you are new to computer peripheral installation or would like
more information, refer to the more comprehensive instructions
and illustrations found in the
Installation
section of this chapter.
Prepare Your SCSI Devices
Before you physically install the host adapter and connect the
SCSI devices, you must prepare your SCSI devices for installa-
tion on the SCSI bus:
1
Terminate the endpoints of the SCSI bus.
Identify which two SCSI devices (including the host adapter)
will form the physical endpoints of your SCSI bus. These
devices at the ends of the SCSI bus must have a set of resis-
tors called
terminators
either installed or enabled. All other
SCSI devices installed between the ends of the SCSI bus
must have their terminators either removed or disabled.
Enabling or disabling host adapter termination is software
selectable only. The factory installed bus terminators on the
AHA-2740 Series are
enabled
by default.
To
disable
termination on the host adapter, refer to Chapter
3,
Configuring the Host Adapter
for instructions. Refer to the
SCSI device documentation for information on enabling or
disabling SCSI termination on other SCSI devices.
2
Verify that each SCSI device located on the SCSI bus is set to
a unique SCSI ID (0-7).
The default value for your host adapter is SCSI ID 7. Refer to
Chapter 3,
Configuring the Host Adapter
for instructions on
changing the SCSI ID for the host adapter. Refer to the SCSI
device documentation for information on changing the SCSI
ID on other SCSI devices.
Adaptec AHA-2740 Series User’s Manual
Stock Number:
510381-00
/
Rev. C
(Page 2-5)
Print Spec Number:
491709-00 Rev C
Current Date:
9/1/93
ECN Date:
9/14/93
Getting Started
2-5