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PRODUCT INFORMATION BULLETIN No. PB _ _ _ _ _ _ _ _-0198
Page 4 of 5
Pioneer New Media Technologies, Inc., Engineering Support (310) 952-2111
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-502
A
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):