Install Your Host Adapter And Peripherals - Adaptec AHA-2740W User Manual

AHA-2740W/2742W/2744W User's Guide

Install Your Host Adapter and Peripherals

Once the SCSI bus is properly terminated and each SCSI device is set
to a unique SCSI ID, you can physically install your host adapter
and SCSI devices.
WARNING:
Turn OFF and disconnect power to the system
and external equipment before removing the chassis cover
or attempting any motherboard modifications.
1
Turn power OFF, unplug your computer and remove the cover.
2
Install the host adapter in an available EISA slot which
supports bus master operations (refer to the host system
documentation for details).
3
To connect standard internal 8-bit SCSI devices, use a 50-pin
SCSI ribbon cable to connect the first SCSI device to the 50-pin
connector on the host adapter. Make sure to align pin 1 of the
cable with pin 1 of the connectors on the host adapter and
internal SCSI device.
To connect additional internal 8-bit SCSI devices, you will need
to obtain a 50-pin SCSI ribbon cable with enough connectors to
accommodate all of your internal SCSI devices.
Note:
Only single-ended SCSI devices are supported by the
AHA-2740W/2742W host adapters, while only differential
SCSI devices are supported by the AHA-2744W host adapt-
ers. Differential SCSI devices may be damaged if connected
to the single-ended SCSI host adapter bus. Similarly, single-
ended SCSI devices may be damaged if connected to differ-
ential host adapters. Most SCSI devices currently produced
are single-ended SCSI devices. Consult your SCSI device
user documentation.
4
To connect internal 16-bit Wide SCSI devices, use a 68-pin SCSI
ribbon cable with 68-pin P-cable connectors to connect the first
internal Wide SCSI device to the internal Wide SCSI connector
on the host adapter.
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ECN Date: 8/9/94
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