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Sony CD-R Drive Unit CDU948S User Manual

Page 11

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11

Remove the jumper to set to OFF, and install the jumper to set to ON.
The recommended jumper is AMP* Shunts (14227-1), JAE** Short
Socket (PS-2SH4-1) or equivalent.
The following table shows the function of each jumper.

Installing the Drive Unit into the Computer

N o t e s :

• The upper row of pins (without KEY position) is ground.
• ID SELECT, PREVENT/ALLOW, and TEST MODE are recog-

nized when the power supply is turned on or SCSI bus is reset.

• TEST MODE is used exclusively for the factory testing. Do not

set TEST MODE to ON. Doing so may cause an unexpected
result.

* AMP is a registered trademark of AMP, Inc.

** JAE is a registered trademark of Japan Aviation Electronics Industry, Ltd.

Jumper

DEVICE
TYPE

ID SELECT

ID number

0

1

2

3

4

5

6

7

Jumper settings

0

OFF

ON

OFF

ON

OFF

ON

OFF

ON

1

OFF

OFF

ON

ON

OFF

OFF

ON

ON

2

OFF

OFF

OFF

OFF

ON

ON

ON

ON

KEY

PREVENT/
ALLOW

TEST MODE

Used to prevent the SCSI bus interface connector
from being plugged in upside down.

ON:

Allows insert and removal of a CD caddy
with the eject button and the eject
command.

OFF:

Prevents insert and removal of a CD

caddy with the eject button or an eject
command.

ON:

Enables test mode.

OFF:

Enables normal operation.

Function

The setting of this jumper determines whether the
SCSI device type code in the inquiry data is WO
or CD-ROM.

ON:

WORM

OFF:

CD-ROM

Assign the drive unit’s ID number by setting these
jumpers to ON or OFF. Do not assign the same
number as one used for other SCSI device.

Factory settings