Sony CDU948S manual Jumper, Function, ID number, N o t e s

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.

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	1	2
				0	OFF	OFF	OFF
				1	ON	OFF	OFF
				2	OFF	ON	OFF
				3	ON	ON	OFF
				4	OFF	OFF	ON
				5	ON	OFF	ON
				6	OFF	ON	ON
				7	ON	ON	ON
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.

Factory settings

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.

Installing the Drive Unit into the Computer 11