Commodore A 2091-40 - Connecting Additional SCSI Devices

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3-22

Installing

the

A2091-40/A2091

3.3

Connecting

Additional

SCSI

Devices

You

can

connect

up

to

seven

SCSI

devices

to

the

A2091,

using

the

Internal

connector

and

the

external

connector

at

the

back

of

the

A2091.

To

connect

the

first

external

SCSI

device,

gently

insert

the

device's

connector

into

the

A2091's

external

connector

and

secure

the

screws.

The

SCSI

device

will

need

to

have

its

own

power

supply.

Additional

SCS!

devices

can

be

connected

in

a

daisy-chain.

(The

first

peripheral

device

connects

to

the

A2091,

the

second

device

connects

to

the

first

device,

and

soon.)

When

connecting

internal

SCSI

devices

you

will

need

to

use

a

50-pin

ribbon

cable

with

as

many

connectors

as

SCSI

devices

to

be

connected

internally,

in

addition

to

the

connector

for

the

board,

Each

intemal

SCSI

device

must

be

connected

to

the

internal

power

supply.

Do

not

connect

more

than

one

device

to

the

A2091 power

connector.

Each

SCSI

device

must

be

jumpered

to

a

different

SCSI

address.

Please

note

that

the

A2091

is

set

to

SCSI

address

7.

if

multiple

SCS!

hard

disks

are

connected

to

the

A2091,

you

will

need

to

remove

the

terminator

packs

on

all but

the

last

external

SCSI

device

in

the

chain,

and

all

but the

last

intemal

SCSI

device

in

the

chain.

Refer

to

the

manufacturer's

documentation

for the

location

of

the

terminator

packs

on

each

device.

4-pin

Power

Cannector

[Ë

ooo

L

4

[|

a

|

EE

i

|

a

rka

Bottom

View

of

Quantum

ProDrive

40S

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