Step 5: Setting The Jumpers - Sony CDU948S User Manual

Step 5: Setting the Jumpers

Set jumpers on rear of drive unit according to your computer
configuration. Jumpers are factory preset as shown below.
DEVICE TYPE
ID SELECT
0 1
10 Hardware Installation
PREVENT/ ALLOW
2
TEST MODE
KEY
= Pin removed
Terminators
The following table shows the function of each jumper.
Jumper Function
DEVICE The setting of this jumper determines whether the
TYPE SCSI device type code in the inquiry data is WO
or CD-ROM.
ON: WORM
OFF: CD-ROM
ID SELECT 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.
ID number Jumper settings
0
OFF
0
ON
1
OFF
2
ON
3
OFF
4
ON
5
OFF
6
ON
7
KEY Used to prevent the SCSI bus interface connector
from being plugged in upside down.
PREVENT/ ON: Allows insert and removal of a CD caddy
ALLOW 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.
TEST MODE ON: Enables test mode.
OFF: Enables normal operation.
Notes:
The upper row of pins is (without position KEY) is ground.
Remove jumper to set OFF, install jumper to set ON.
ID SELECT, PREVENT/ALLOW, and TEST MODE are recognized
when the power supply is turned on or the SCSI bus is reset.
TEST MODE is used exclusively for factory testing.
Do not set TEST MODE to ON. Doing so may cause unexpected
results.
1 2
OFF OFF
OFF OFF
ON OFF
ON OFF
OFF ON
OFF ON
ON ON
ON ON
Factory settings
Hardware Installation 11