PRODUC T INFORMATION BULLETIN
No. PB _ _ _ _ _ _ _ _-0198
Optical Drive Summary
There have been five (5) series of Pioneer optical drives: 5000, 5100, 7000, 7100 and 9100. The 5000,
5100 and 7000 series were all SCSI-1 type devices and are no longer in production. The 7100 and 9100
series are switchable SCSI-1 and SCSI-2 devices and are still being produced.
NOTE: SCSI-2 is the current prevalent industry standard.
DE-7001 Series
The DE-7001 series includes the DE-S7001 and DE-U7001 models. The DE-S7001 is an external
subsytem including drive unit, SCSI controller and DC power supply. The DE-U7001 is an internal full
height drive unit with SCSI controller. Both models use the DEC-702 rewritable (MO) magneto-optical
disk media and the DC-502A WORM (Write Once Read Many) optical disk media.
The 7001 series drives must be set to Mode 0 when using Rewritable media and to Mode 1 when using
WORM media. The settings of the dip switch bits 7 and 8 determine which mode the drive is set to. The
dip switch is located on the rear of the DE-S7001 and on the controller board of the DE-U7001.
The bit settings are read by the controller at Power ON and RESET. If the settings of the bits have
changed, the unit must be reset or turned OFF and then ON before the new setting will take place.
IMPORTANT: You should only change the bit settings when power to the device is OFF.
NOTE: The Mode setting may also be changed by sending the SCSI command CHANGE MODE. Refer
to the SCSI specifications for the corresponding drive for more details.
The Modes are set as described in the table below:
Mode
Bit 7
Bit 8
Name
Description
0
OFF
OFF Rewritable Mode Read and write operations are enabled only with ISO
standard (sampled servo format) rewritable disks. Read
and write operations with WORM disks are disabled.
1
OFF
ON
WORM Mode
Read and write operations are enabled only with ISO
standard (sampled servo (SS) format WORM disks.
Read and write operations with rewritable disks are
disabled.
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PRODUC T INFORMATION BULLETIN
No. PB _ _ _ _ _ _ _ _-0198
The Modes are set as described in the table below (factory default is Mode 0):
Mode
Bit 4
Bit 5
Name
Description
0
OFF
OFF
Rewritable
Read and write operations are enabled only with ISO
standard (sampled servo format) rewritable disks. Read and
write operations with WORM disks are disabled. (DE-
C7001)
1
2
ON
OFF
ON
WORM
SCSI-2
Read and write operations are enabled only with ISO
standard (sampled servo (SS) format WORM disks. Read
and write operations with rewritable disks are disabled.
SCSI specifications are same as that of DD-5101 series
except DE-SH7101 enables RDBC (Read Blank Check) as
default. (DD-C5001)
Read and write operations are enabled with both ISO
standard (sampled servo (SS) format) rewritable and
WORM disks. SCSI specifications are based on SCSI-2.
(DE-C7101)
OFF
IMPORTANT: Because Mode 2 supports both WORM and MO type media as well as SCSI-2
command set, it is recommended that the user use the drive in Mode 2.
The 7101 series has a dual-color BUSY LED. The meaning of the light indications of the LED is listed in
the table below.
Drive Status
no disk inserted
MO disk present
WORM media present
BUSY
Rewritable Mode
flashing green
dim
WORM Mode
flashing yellow
flashing yellow
dim
steady yellow
orange
flashing green
steady green
orange
overheat
Note: The two colors of the LED are yellow and green. When both colors are lit, the result is orange.
DE-SH9101
The DE-SH9101 is a half-height external multifunction optical disk drive subsystem that can handle large
capacity (1.7 GB) utilizing the sampled servo format Multiplexed Address Sampled Servo (MASS).
MASS is a high density data recording system.
Page 3 of 5
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PRODUC T INFORMATION BULLETIN
No. PB _ _ _ _ _ _ _ _-0198
The DE-SH9101 uses both MASS format optical disks and ISO standardized Type-B format (SS) optical
disks (MO and WORM). It is upward compatible with the DE-SH7101 optical drive.
The media types used by the DE-SH9101 are the DEC-17GMO rewritable (MO) 1.7GB capacity
magneto-optical disk, DC-17GWO 1.7 GB capacity WORM (write once read many) optical disk, DEC-
702 654 MB capacity MO disk, and DC-502A 654 MB capacity WORM disk.
The SCSI command set for the 9101 conforms to the 7101 series SCSI specifications (upward
compatible Mode 0, Mode 1 and Mode 2). It has plug-in compatibility with DE-7001 or DD-5101 (Mode
0 and Mode 1).
The 9101 supports both synchronous and asynchronous data transfers.
The DE-SH9101 drive must be set to Mode 0 or Mode 2 when using Rewritable media and to Mode 1 or
Mode 2 when using WORM media. The drive must be set to Mode 2 when used as a SCSI-2 device. The
drive mode is determined by the settings of the dip switch bits 4 and 5. The dip switch is located on the
rear of the drive.
IMPORTANT: Because Mode 2 supports both WORM and MO type media as well as SCSI-2
command set, it is recommended that the user use the drive in Mode 2.
NOTE: The bit settings are read by the controller at Power ON and RESET. If the settings of the bits
have changed, the unit must be reset or turned OFF and then ON before the new setting will take place.
IMPORTANT: You should only change the bit settings when power to the device is OFF.
The Modes are set as described in the table on the next page (factory default is Mode 0):
Page 4 of 5
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PRODUC T INFORMATION BULLETIN
No. PB _ _ _ _ _ _ _ _-0198
Mode
Bit 4
Bit 5
Name
Description
0
OFF
OFF
Rewritable
Read and write operations are enabled only with ISO
standard (sampled servo format) rewritable disks. Read and
write operations with WORM disks are disabled. (DE-
C7001)
1
2
ON
OFF
ON
WORM
SCSI-2
Read and write operations are enabled only with ISO
standard (sampled servo (SS) format WORM disks. Read
and write operations with rewritable disks are disabled.
SCSI specifications are same as that of DD-5101 series
except DE-SH7101 enables RDBC (Read Blank Check) as
default. (DD-C5001)
Read and write operations are enabled with both ISO
standard (sampled servo (SS) format) rewritable and
WORM disks. SCSI specifications are based on SCSI-2.
(DE-C7101)
OFF
The DE-SH9101 series has a dual-color BUSY LED. The meaning of the light indications of the LED is
listed in the table below.
Drive Status
no disk inserted
MO disk present
WORM media present
BUSY
Mode 0
flashing green
dim
flashing green
steady green
orange
Mode 1
flashing yellow
flashing yellow
dim
steady yellow
orange
overheat
Note: The two colors of the LED are yellow and green. When both colors are lit, the result is orange.
Page 5 of 5
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