Adaptec AHA-2742T User Manual - Page 33

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

For internal SCSI devices, connect one end of the 50-pin SCSI

ribbon cable to the internal connector on the host adapter;

connect the other end to the connector on the internal SCSI

device. Make sure to align Pin 1 of the cable with Pin 1 of the

connectors on the host adapter and internal SCSI device.

4

To connect a second internal SCSI device, plug the middle con-

nector of the SCSI ribbon cable to the connector on the second

internal SCSI device.

To connect additional internal SCSI devices to a SCSI bus,

you will need to obtain a 50-pin SCSI ribbon cable with

enough connectors to accommodate all of your internal SCSI

devices.

5

For external SCSI devices, connect one end of the 50-pin

shielded cable to the external connector on the host adapter;

connect the other end to one of the SCSI connectors of the

external SCSI device. External cable connectors are keyed

and can only be plugged in one way.

To connect subsequent external SCSI devices, you will need

to obtain additional shielded cables to chain the devices

together.

Adaptec AHA-2740 Series User’s Manual

Stock Number:

510381-00

/

Rev. C

(Page 2-6)

Print Spec Number:

491709-00 Rev C

Current Date:

9/1/93

ECN Date:

9/14/93

AHA-2740 Series User’s Manual

2-6

Adaptec AHA-2742T User Manual - Page 33

Install Your Host Adapter and Peripherals

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