Adaptec AVA-2825 Przewodnik Instalacji Pobierz pdf (Strona 6)

AVA-2825 Installation Guide

Part Number: 510612-00, Rev A

Print Spec Number: 492733-00

Current Date: 6/8/94 ECN Date: 6/14/94

3 Remove the corresponding expansion slot cover

from the PC chassis.

4 Align the bus connector on the bottom of the host

adapter with the VL-Bus slot and carefully press

it down into the slot. Secure the host adapter

bracket to the PC chassis with the screw from the

removed expansion slot cover.

Note: Do not replace the chassis cover or

reconnect the power yet!

Connecting SCSI Peripheral Devices

Caution: AVA-2825 host adapters support

only single-ended SCSI devices. Do not con-

nect differential SCSI devices to this host

adapter. Read the documentation to deter-

mine whether a device supports single-

ended or differential SCSI.

Connecting Cables

SCSI devices are cabled together in a single, con-

nected series called the SCSI bus. SCSI cables must

run sequentially from one device to the next, with no

branching.

1 Lay out the cables and find the pin-1 element of

each cable and peripheral connector.

On internal cables, pin 1 is usually marked with a

contrasting color on one edge of the ribbon cable,

and a small triangle marks pin 1 on the SCSI con-

nector. External cables can only be plugged in one

way, so pin-1 orientation is automatic.

2 Attach the SCSI cable(s) to the host adapter and

the peripheral device(s), using the internal and/

or external connector(s).

Be sure to maintain correct pin-1 orientation

throughout the bus. The AVA-2825 uses a 50-pin

high-density external connector, and a 50-pin flat

ribbon-type internal connector.

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Adaptec AVA-2825 Przewodnik Instalacji Strona 6