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Hard Drive: IBM: DGHS-318220 (18E) 18220MB 3.5"/HH SCSI3 ULTR




D G H S - 3 1 8 2 2 0         ( 1 8 E )    IBM
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders        |     |     |
Capacity form/unform 18220/      MB        Heads          20|     |     |
Seek time   / track   7.5/ 0.7 ms          Sector/track     |     |     |
Controller           SCSI3 SI/ULTR/FA      Precompensation
Cache/Buffer          1000 KB PROGRAMMABLE Landing Zone
Data transfer rate   15.000 MB/S int       Bytes/Sector      512
                     20.000 MB/S ext
Recording method     PRML                           operating  | non-operating
                                                  -------------+--------------
Supply voltage                  Temperature *C         5 50    |    -40 65
Power: sleep              W     Humidity     %         5 90    |
       standby            W     Altitude    km    -0.300  3.000| -0.300 12.000
       idle               W     Shock        g        10       |
       seek               W     Rotation   RPM      7200
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit   ON THE FLY,SMART
                                MTBF         h
                                Warranty Month
Lift/Lock/Park     YES          Certificates

Layout

IBM DGHS-09/18 JUMPER SETTING

    +-----------------------------------------------------+
    |                                                     |
    |    68/80 Pin Models                                 |
    |                                                     |
    |                                                     |
    |++---------SCSI-----------------+-Aux.---+-Power---++|
    ||| +------------------------1-+ |+-----1+|+-------+|||
    ||| |\::::::::::::::::::::::::/| ||::::::|||XXXXXXX||||
    ||| +------------------------35+ |+-----2+|+-------+|||
    ||+------------------------------+Connect.+-4-3-2-1-+||
    ++                                                   ++

Jumpers

IBM DGHS-09/18 (39110/318220) INSTALLATION NOTES

Jumper Setting
--------------

                                                   Termination
                                                   Power Enable
 +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +--+--+
 |01|03|05|07|xx|11|13|15|17|19|21|23|25|27|29|31| |  |  |
 +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ |01|02|
 |02|04|06|08|10|12|14|16|18|20|22|24|26|28|30|32| |  |  |
 +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ +--+--+
 *NOTE: PINS 1 AND 2 DO NOT EXIST IN 50-PIN MODELS!

 Pin| Description
 ---+---------------------------------------------------------
 01 | Bit 3 (MSB) (Do not exist in 50-pin models)--+
 03 | Bit 2                                      --+   Address
 05 | Bit 1                                      --+   Jumpers
 07 | Bit 0 (LSB)                                --+
 09 | Blank Polarity
 10 | Unused
 11 | Auto Start
 13 | Ground
 14 | Enable Active Termination
 15 | -Master Sync
 16 | -Slave Sync
 17 | External Activity LED
 18 | +5V
 19 | Write Protect
 21 | Auto Start Delay
 23 | Option Block Mode
 25 | Disable Sync Negotiations
 27 | Disable SCSI Parity
 29 | Disable Unit Attention
 31 | Customize

 68/80-Pin SCSI ID
 -----------------
   +----------+-------------------------------+
   | SCSI ID  |       Jumper Location         |
   |          |             PINS              |
   |          | Bit 3 | Bit 2 | Bit 1 | Bit 0 |
   +----------+-------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    1     | OPEN  | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    2     | OPEN  | OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    3     | OPEN  | OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    4     | OPEN  | CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    5     | OPEN  | CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    6     | OPEN  | CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    7     | OPEN  | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    8     | CLOSED| OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    9     | CLOSED| OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   10     | CLOSED| OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   11     | CLOSED| OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |   12     | CLOSED| CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |   13     | CLOSED| CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   14     | CLOSED| CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   15     | CLOSED| CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+

NOTE
For attachment to a Macintosh, place jumpers on pins 29 & 30 to
Disable Unit Attention and pins 11 & 12 for Auto Start.

Auto Start (& Delay) Pins
-------------------------
The Auto Start and Auto Start Delay pins control when and how the
drive can spin up and come ready. When configured for Auto-Startup,
the motor spins up after power is applied without the need of a SCSI
Start Unit command. For no Auto-Start, a SCSI Start Unit command is
required to make the drive spin and be ready for media access
operations. When in Auto-Start mode, the drive will delay it's start
time by a period of time multiplied by it's own SCSI address.

Write Protect Pins
------------------
If the Write Protect pin is jumpered to ground the drive will
prohibit SCSI commands that alter the customer data area portion of
the media from being performed. The state of this pin is monitored on
a per command basis.

Disable Sync. Negotiation Pins
-------------------------------
If a Disable Target Initiated Synchronous Negotiation pin is grounded
then an Initiator is required to start a negotiation handshake if
Synchronous and/or Wide (Double Byte) SCSI transfers are desired.

Disable SCSI Parity Pins
------------------------
Grounding this pin will disable SCSI Parity checking.

Disable Unit Attention Pins
---------------------------
Grounding this pin will disable the drive from building Unit
Attention Sense information for commands immediately following a
Power On Reset (POR) or SCSI Bus Reset. Any pending Unit Attention
conditions will also be cleared at POR or SCSI Reset times.

Install

IBM DGHS-09/18 NOTES ON INSTALLATION

Notes on installation
=====================

Installation direction
----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+

The drive will operate in all axis (6 directions).

Mount the drive securely, using the appropriate brackets or rails, in
any axis, using four 6-32 UNC metric screws in the bottom or side
mounting holes.

The maximum screw insertion depth for mounting is 3.8 mm (.15 in).













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