
D 3 8 5 5    NEC
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    1251|     |     |
Capacity form/unform   105/      MB        Heads           4|     |     |
Seek time   / track  25.0/     ms          Sector/track   41|     |     |
Controller           SCSI1 SINGLE-ENDED    Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.500 MB/S int       Bytes/Sector      512
                      3.000 MB/S ext ASYNC
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      50000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

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                        L   A   Y   O   U   T
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NEC      D3835/3855/3856/3865  INSTALLATION GUIDE DEC. 92

  +---------------------------------------------------------+
  |                                                         |XX
  |   PCB 1                                        SW1   ++ |XX
  |                                           OFF 1--+ON || |XX
  |                                               |  |   || |XX I
  |                                               4--+   || |XX N
  |                                                      ++ |XX T
  |                                         TERMINATING  ++ |XX E
  |                                         RESISTORS    || |XX R
  |                                                      || |XX F
  |                                                      || |XX A
  |                                                      ++ |XX C
  |                                                         |XX E
  |+-+LED                                                   |X1
  |+-+CONNECTOR                  JP1 JP2 JP3                |
  |                                +-+-+-+                  |XX
  |                                +-+-+-+                  |XX Power
  +---------------------------------------------------------+  1







  D3865
  +---------------------------------------------------------+
  |                            ++JP2                        |XX
  |                            ++                  SW1   ++ |XX
  |   PCB 2                    ++JP1          OFF 1--+ ON|| |XX
  |                            ++                 |  |   || |XX I
  |                                               4--+   || |XX N
  |                                                      ++ |XX T
  |                                         TERMINATING  ++ |XX E
  |                                         RESISTORS    || |XX R
  |                                                      || |XX F
  |                                                      || |XX A
  |                                                      ++ |XX C
  |                                                         |XX E
  |+-+LED                                                   |X1
  |+-+CONNECTOR                      ++JP3                  |
  |                                  ++                     |XX
  |                                                         |XX Power
  +---------------------------------------------------------+  1



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                      J   U   M   P   E   R   S
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NEC      D3835/3855/3856/3865  INSTALLATION GUIDE DEC. 92

 Jumper Setting
 ==============

 x = Jumper set at factory



 SW1  SCSI ID
 ------------
                                                0  1  2
                                                |  |  |
   +----------+-----------------------+     +4--3--2--1-+
   | SCSI ID  |        Jumpers        |  OFF|.  X  X  X | OPEN
   |          |   1   |   2   |   3   |  ON |X  .  .  . | CLOSED
   +----------+-------+-------+-------+     ++----------+
   |x   0     | OPEN  | OPEN  | OPEN  |      |
   |    1     | OPEN  | OPEN  | CLOSED|      Parity Check Option;
   |    2     | OPEN  | CLOSED| OPEN  |      for D3865 set position
   |    3     | OPEN  | CLOSED| CLOSED|      4 always to OFF! (PCB 2)
   |    4     | CLOSED| OPEN  | OPEN  |
   |    5     | CLOSED| OPEN  | CLOSED|
   |    6     | CLOSED| CLOSED| OPEN  |
   |    7     | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+


 SW1  Parity Check Option
 ------------------------
      4  OPEN   SCSI Parity Check diabled
         CLOSED SCSI Parity Check enabled

 (PCB 2) for D3865 set position 4 always to OFF! (Start Comm.)

                   +--D3865--+
                OFF| X X X X |
                ON | . . . . |
                   +-4-3-2-1-+


 JP1 and JP2
 -----------
 JP1 and JP2 are used for inspection purposes at the factory. Please
 refraim from touching them. (See D3865)



 D3865 JP2  Parity Check
 -----------------------
 D3865 (PCB 2)
 NOTE: For parity check enable of the D3865 SCSI drive set the
       jumper JP2.



 JP3  Auto Power Save
 --------------------
 The function is selected by inserting a short-circuiting plug in JP3.

 Short-circuiting plug present:
 Auto power save on.

 Short-circuiting plug not present:
 Auto power save off.



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                      I   N   S   T   A   L   L
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NEC      D3835/3855/3856/3865  INSTALLATION GUIDE DEC. 92

 NOTES ON INSTALLATION
 =====================

 First install the drive with the components side to the bottom.
 Connect the system power and interface cables to the drive
 connectors. Both connectors are keyed and can only be connected one
 way. The interface connector may not be keyed. In this case check
 if the red edge of the interface cable is connected to the pin 1 of
 the drive connector.

 After installing the hardware please turn on your computer system
 and run the setup program. The setup setting is "drive not
 installed". The SCSI interface accepts up to seven drives. For a
 dual or more drives installation set the SCSI ID. In order to install
 DOS please run the DOS program FDISK and Format C:/s.
 In case of installation trouble please contact NEC hotline:
              Tel. 49/89/93006 708

 Caution: SCSI drives don't need a low level format. If a new low
 level format become neccessary, please run only qualified programs
 for SCSI devices or the internal low level program of SCSI host
 adapters (i.e. Adaptec AHA1540).



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
NEC      D3835/3855/3856/3865  INSTALLATION GUIDE DEC. 92

 NEC drives
 -----------
 The NEC IDE/SCSI drives are designed to work in the IBM AT and
 compatible systems and gurantee the operation with any standard IDE
 and SCSI Controller. Further, the NEC drives provide compatibility to
 the ATA/SCSI CAM and ANSI (X3-131-199x) standard as well as to all
 known operating systems.


