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Layout
The drive was identified as the 'NEC DVDRW ND-4550A' under WinXP. Below is a screenshot of Nero Burning Rom's specs for the drive. Below is a screenshot of Nero Burning Rom's specs for the drive. In order to compare the performance of the ND-4550A, we provide the results of two other latest release burners, the BenQ DW-1655 and Plextor PX-755A. A SCSI bus cable, power cable, and frame ground cable are required to operate the drive. If two or more SCSI devices are connected to the same SCSI bus cable, SCSI address setting and terminating resistor ON/OFF switches must be altered properly. The drive has some optional function setting by switches to be set depending on the desired operating. The NEC MultiSpin 4Xc is a monstrous external SCSI CD-ROM drive built for MS-DOS, Windows, and Macintosh. It holds SEVEN discs at once! Time to unbox it a se. Manufacturer: NEC model: DSE-2100S S5D capacity: 2100MB, physical size: 3.5in/SL, interface: SCSI2 FAST, hard driver specs and jumper settings, layout and features. The following drives used in NEC Neax 61E and NEC SIGMA Switches can be substituted. MCF3064SS (512 sector) Magneto Optic Drive (MO) ST34520N Moving Head Hard Disk Drive (MHD/ HDD) Other HDD & Magneto Optic (removable) SCSI firmware is available for the NEC Switches.
NEC D5882 PRODUCT DESCRIPTION 806-520986-0, REV. A, AUGUST 1989
Jumpers
NEC D5882 PRODUCT DESCRIPTION 806-520986-0, REV. A, AUGUST 1989
Jumper Setting
The SCSI address is factory-set to '0'. If two or more SCSI devices
are connected to the same bus or the arbitration priority is to be
altered, alter the SCSI address with switches SW1-1, SW1-2 and SW1-3.
SW1-4 SPINUP DISABLE
---------------------
When switch SW1-4 is ON, the drive motor is not turned on until the
host device issues the SCSI Start Unit Command. When this switch is
OFF, the drive motor is turned on automatically when the power is
turned on.
This switch is factory-set to OFF.
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SW1-5 SCSI PARITY ENABLE
-------------------------
When switch SW1-5 is ON, SCSI bus parity is checked by this drive.
When this switch is OFF, SCSI bus parity is not checked.
This switch is factory set to ON.
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setting.
SW1-6 SLOW CABLE
-----------------
When switch SW1-6 is ON, the data setup times and transmit periods
when this drive transmitting to the SCSI bus are increased. When this
switch is OFF, the standard data setup times and transmit periods are
used.
This switch is factory-set to OFF.
SW1-7 has no function!
SW1-8 WRITE PROTECT
--------------------
When switch SW1-8 is ON, this drive is write-protected.
When this switch is OFF, this drive is not write-protected.
This switch is factory-set to OFF.
When Switch SW2-1 is ON, this drive provides terminator power for the
SCSI bus cable. When switch SW2-1 is OFF, this drive does not provide
terminator power.
This switch is factory-set to ON.
SW2-1 Termination Power Setting
--------------------------------
When switch SW2-1 is ON, this drive provides terminator power for the
SCSI bus cable. When switch SW2-1 is OFF, this drive does not provide
terminator power.
This switch is factory-set to ON.
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Terminating Resistor Setting
----------------------------
If three or more SCSI devices are connected to the same SCSI bus, the
terminating resistors of SCSI devices except the one located at the
furthest end of the cable must be set to OFF.
In this drive, the terminating resistors can be switched ON or OFF
with switches SW2-2 to 8 and SW3-1 to 8.
The terminating resistor switches of this adapter is factory-set to
ON. Set them to OFF unless connected at the furthest end of the
cable.
Install
NEC D5882 PRODUCT DESCRIPTION 806-520986-0 REV. A, AUGUST 1989
Notes on installation
Drive mounting
--------------
The D5882 magnetic disk drive can be installed both horizontally and
vertically. When installing the drive horizontally, be sure to
install the drive with the main printed wiring assembly faced down.
(Do not face the front panel of the drive upward or downward.)
Fix the drive using four tap holes. Use #6-32UNC (4mm or less deep).
A SCSI bus cable, power cable, and frame ground cable are required
to operate the drive. If two or more SCSI devices are connected to
the same SCSI bus cable, SCSI address setting and terminating
resistor ON/OFF switches must be altered properly. The drive has some
optional function setting by switches to be set depending on the
desired operating.
When natural cooling is used, be sure that the air around the drive
circulates smoothly so that the heat generated by the drive does not
accumulate.
When the drive is installed in a cabinet, use a fan in order to
circulate the air.
Interface Connector
-------------------
Connector J1 is a 50-pin non-shielded connector used for interface to
the SCSI bus.
Power Connector
---------------
Connector J3 for power supply is an AMP P/N 172349-1 or the
equivalent.
The connector housing AMP P/N 1-480424-0 of the cable suits this
connector. Select a power cable, considering the current consumption
and cable length, and use connector pins that suit the cable
material.
Frame Ground Connector
----------------------
Connector J4 for frame ground is an AMP P/N 61761-2 or the
equivalent.
The disk enclosure assembly does not have to be grounded because it
is connected to the signal ground. The frame and disk enclosure
assembly are insulated from each other. If the frame has to be
grounded for safety, use connector J4. The recommended mate connector
is AMP P/N 62187-1.
SCSI Bus
--------
On the SCSI bus, only two SCSI devices can communicate at any given
time. When two SCSI devices communicate, one acts as the Initiator
and the other acts as the Target. The Initiator originates an
operation and the Target performs the operation. The D5882 always
acts as the Target.
The following figure shows examples of SCSI bus connection. This
drive has connector J1 for connection to the SCSI bus cable.
The device connected at each furthest end of the cable must have
terminating resistors installed. This drive has terminating resistor
switches with which terminating resistors can be installed or removed
easily.
Features
NEC D5882 PRODUCT DESCRIPTION 806-520986-0 REV. A, AUGUST 1989
Outline and Features
--------------------
The D5882 Magnetic Disk Drive is a 5.25-inch Winchester disk drive,
having an unformatted storage capacity of 765 Mbytes, employing Small
Computer System Interface (SCSI).
Features
--------
SCSI Interface
Employs Single-ended interface.
Conforms to the ANSI X3-131-1986 SCSI Specification
Supports SCSI Common Command Set (CCS) and various useful optional
commands.
Supports synchronous SCSI bus data transfers up to 4.8 Mbyte per
second.
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Executes asynchronous SCSI bus data transfer with quick response of
REQ/ACK handshakes in Data IN/OUT phase.
Contributes to reduction of overhead of SCSI command execution with
quick changes in bus phases.
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Supports logical block sizes of 256 through 4096 bytes in one byte
granularity.
Supports the defect management that tries to allow contiguous access
to sequential logical blocks around a defective block to reduce the
additional latency time.
Disk Drive
----------
Performs highly reliable accessing at high speed by a voice coil
motor with its servo surface located in the middle of the disk drive.
Provides a Contact Start/Stop (CSS) area on the innermost of magnetic
media.
Protects the drive from delivery vibration and impacts by the auto
retract functions to the CSS area.
Uses a brushless DC spindle motor controlled by a dedicated micro-
processor for precise speed control.
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