7 6 0 S ( O T 5 7 6 0 - S C S I ) ORCA
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/FH Cylinders 1632| | |
Capacity form/unform 701/ 765 MB Heads 15| | |
Seek time / track 14.0/ 3.0 ms Sector/track 28| | |
Controller SCSI1 SINGLE-ENDED Precompensation
Cache/Buffer 64 KB LOOK-AHEAD Landing Zone
Data transfer rate 1.875 MB/S int Bytes/Sector 1024
4.000 MB/S ext SYNC
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 50 | -40 60
Power: sleep W Humidity % 10 90 | 5 95
standby W Altitude km -0.305 3.000| -0.305 15.240
idle 18.0 W Shock g 5 | 50
seek 35.0 W Rotation RPM 3600
read/write W Acoustic dBA 43
spin-up 54.0 W ECC Bit 48
MTBF h 50000
Warranty Month
Lift/Lock/Park YES Certificates CSA,FCC,UL1950
**********************************************************************
L A Y O U T
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ORCA OT5 760-SCSI INSTALLATION MANUAL P/N 308102 9/91
+------------------------DISK-DRIVE-----------------------------+
| |
| |
| Remote Settings I/O Connector J3 J2 |
+---+-------------++----------------------------------++-------++
|11 9 7 5 3 1|| 1||XXXXXXX|
|12 10 8 6 4 2||40 20 2||4 3 2 1|
+-------------++----------------------------------++-------+
J4 Power
**********************************************************************
J U M P E R S
**********************************************************************
ORCA OT5 760-SCSI INSTALLATION MANUAL P/N 308102 9/91
Jumper Setting
==============
x = Factory default
The drive contains user selectable and factory select jumpers. The
factory select jumpers must be placed in the default position
specified for proper operation of the drive. Jumpers are read only
during initialization of the drive. If the jumper settings are
changed, the drive must be reset by powering it down or by issuing a
bus device reset command before the new settings will take effect.
Jumpers
-------
+--------+---------+---------+--------------------------------+
| Jumper | Type |Default | Definition |
+--------+---------+---------+--------------------------------+
| W1 | Factory | In | TMS320 Clock |
+--------+---------+---------+--------------------------------+
| W2 | Factory | In | Position Quadrature |
+--------+---------+---------+--------------------------------+
| W3 | Factory | In | Position Normal |
+--------+---------+---------+--------------------------------+
| W4 | Factory | In | VCM Driver |
+--------+---------+---------+--------------------------------+
| W5 | User | Out | Termination Power |
+--------+---------+---------+--------------------------------+
| W6 | User | In | Hard/Soft SCSI Reset |
+--------+---------+---------+--------------------------------+
| W7 | Factory | In | Z80 Clock |
+--------+---------+---------+--------------------------------+
| W8 | User | Out | Enable Lock Ahead Read |
+--------+---------+---------+--------------------------------+
| W9 | Factory | Out | ETC Enable |
+--------+---------+---------+--------------------------------+
| W10 | User | In | Enable Power On Sequence Up |
+--------+---------+---------+--------------------------------+
| W11 | Factory | Out | Hard Servo Reset |
+--------+---------+---------+--------------------------------+
| W12 | Factory | Out | PZ2 |
+--------+---------+---------+--------------------------------+
| W13 | Factory | Out | AM Detect |
+--------+---------+---------+--------------------------------+
| W14 | Factory | Out | Chassis/PCB Ground |
+--------+---------+---------+--------------------------------+
User Jumpers
------------
The user selectable jumpers are defined below:
Remote Settings - J4/J5 - The Remote Settings are two groups of
jumpers that may be jumpered on the drive PCB or cabled to a remote
location for selection by the user.
Terminator Power - If jumper W5 is installed the drive will source/
receive terminator power to/from the SCSI bus.
Hard/Soft SCSI Reset - If jumper W6 is installed the hard reset SCSI
option is selected.
Enable Look Ahead Read - If jumper W8 is installed the look ahead
read option is enabled.
Enable Power On Sequence Up - If W10 is installed the drive will
automatically sequence up when power is applied. If W10 is not
installed the drive will require a Sequence Up command before the
drive will be spun up.
Remote Settings J4/J5
---------------------
Remote Settings - Most of the manual controls (customer options) are
implemented internally at J4 and J5 on the PCBA, using mini-jumpers
or externally via a 12-pin connector and cable (not provided).
J4/J5 Remote Settings Definitions
----------------------------------
+---------+------------+---------+-------------------------------+
| Jumper | Remote | Default | Function |
+---------+------------+---------+-------------------------------+
| J4 1-2 | 2, 4, 6 TTL| Out | Device ID 1 |
| 3-4 | Low | Out | 2 |
| 5-6 | | Out | 4 |
+---------+------------+---------+-------------------------------+
| J4 7-8 | 8 TTL Low | Out | Disable Auto Sequence up |
+---------+------------+---------+-------------------------------+
| J4 9-10 | 9 TTL Low | Out | Write Protect |
+---------+------------+---------+-------------------------------+
| J4 11 | Received | | Remote Ready |
+---------+------------+---------+-------------------------------+
| J4 12 | Received | | +5V |
+---------+------------+---------+-------------------------------+
| J5 1-2 | -- | | Block Size |
| 3-4 | | | |
+---------+------------+---------+-------------------------------+
| J5 5-6 | | Out | Disable Unit Attention |
+---------+------------+---------+-------------------------------+
| J5 7-8 | | Out | Disable SCSI Parity |
+---------+------------+---------+-------------------------------+
SCSI ID Jumpers
---------------
Every peripheral device that is connected to the SCSI bus must have a
unique address (SCSI device ID). The disk drive SCSI ID is selected
by installing jumpers on J4 (1-2, 3-4, 5-6). SCSI ID 0 is the default
jumper selection.
+----------+-----------------------+
| SCSI ID | Jumpers |
| | 5-6 | 3-4 | 1-2 |
+----------+-------+-------+-------+
|x 0 | OPEN | OPEN | OPEN |
| 1 | OPEN | OPEN | CLOSED|
| 2 | OPEN | CLOSED| OPEN |
| 3 | OPEN | CLOSED| CLOSED|
| 4 | CLOSED| OPEN | OPEN |
| 5 | CLOSED| OPEN | CLOSED|
| 6 | CLOSED| CLOSED| OPEN |
| 7 | CLOSED| CLOSED| CLOSED|
+----------+-------+-------+-------+
J4 7-8 Disable Auto Sequence Up
--------------------------------
If auto sequence up is enabled (J4 7-8 Not installed), the drive will
delay six seconds after power is applied (multiplied by its SCSI ID)
before spin up begins.
J4 9-10 Write Protect
----------------------
Connecting J4-9 with a jumper to J4-10 will inhibit writing and
protect all previously written data.
Remote Ready
------------
This line may be used to operate a remote LED.
+5 Volts
--------
This is five volts from the drive.
Block Size
----------
The block size can be selected through the Mode Select command or by
the jumper selection.
Block Size Jumpers
+--------+--------+-----------------+
| J5 3-4 | J5 1-2 | Block Size |
+--------+--------+-----------------+
| Out | Out | Via Mode Select |
| Out | In | 256 bytes |
| In | Out | 512 bytes |
| In | In | 1024 bytes |
+--------+--------+-----------------+
Disable Unit Attention
----------------------
Connecting J5-5 and J5-6 will disable the generation of Unit Atten-
tion after device reset.
Disable SCSI Bus Parity
-----------------------
Connection J5-7 and J5-8 will disable the checking of SCSI bus
parity.
Factory Jumpers
---------------
The factory use jumpers must be placed in the default position
specified for proper operation of the disk drive.
RP6/RP7 Termination
--------------------
The ORCA drive is shipped with a terminator installed to minimize
reflections and ensure maximum data integrity. In a daisy chain
configuration the first SCSI device and the last SCSI device must be
terminated. Other terminators must be removed. The OT5 760-SCSI drive
will supply terminator power to the SCSI bus if jumper W5 is
installed. If a terminated drive loses power, terminator power will
be received through W5, if supplied by another SCSI device.
J6 Front Panel Interface (LED)
-------------------------------
The front panel indicator is a green LED that illuminates when the
drive is selected. It is connected via a internal cable to front
panel connector J6 on the bottom side of the PCBA. The front panel
(bezel) with LED and cable are an OPTION.
**********************************************************************
I N S T A L L
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ORCA OT5 760-SCSI INSTALLATION MANUAL P/N 308102 9/91
Notes on Installation
=====================
Drive Handling Guidelines
-------------------------
Do not drop the drive from any height. Set the drive down carefully
on a padded surface.
Carts used to transport drives should have soft rubber wheels to ab-
sorb shock. Foam pads should be placed under drives when transport-
ing.
Store and transport drives right-side up (long dimension horitontal
or flat, top up, and drive motor down). Drive must rest on a flat
surface. Do not put papers, etc. under the drive.
Do not dress or reposition components, wires, or cables.
Do not place drives in vertical position closer than two to three
inches apart to avoid hitting and breaking components.
Do not remove seals from the Head/Disk Assembly. This will result in
contamination which affects drive operation. Do not attempt to
disassemble the Head/Disk Assembly.
Do not place objects on top of the drive (especially metallic
objects).
Do not store the drive where a possibility exists of condensation
from humid air.
Shock and Vibration Precautions
-------------------------------
The drives must be handled in such a manner so as not to exceed the
Non-Operating and Installed, or Unpacked and Stored environmental
specifications.
Automatic Head Actuator Lock
----------------------------
This automatic lock requires no action by the user. When the drive is
powered down, the actuator locks onto a designated landing zone to
prevent head/media damage when shipped and handled according to
specifications.
J2 DC Power
-----------
The drive power connector is a 4-pin connector, mounted on the
component side of the PCBA. The recommended mating connector is AMP
P/N 1-480424-0, utilizing AMP pins P/N 61314-4 (Strip) or P/N 60617-4
(Loose Piece).
+-----J2-----+ pin 1 +12 VDC 5% AT 4.5A max. (power-up 10%)
| 1 2 3 4 | pin 2 +12 Volts Return
--+------------+- pin 3 + 5 Volts Return
------------------- pin 4 + 5 VDC 5% AT 2.5A max.
J3 SCSI Interface
-----------------
J3 is a 50-pin right-angle socket header. The pins are numbered 1
through 50 with the odd pins located closest to the PCB. All odd
numbered pins are ground except pin 25, which is left open. It
receives a 50-pin flat cable socket connector. The recommended mating
connector is 3M O/N 3425-7050 or SAE RD6350-R5C.
**********************************************************************
F E A T U R E S
**********************************************************************
ORCA OT5 760-SCSI INSTALLATION MANUAL P/N 308102 9/91
General Information
-------------------
ORCA TECHNOLOGY's 5.25-inch disk drives use advanced Winchester,
microprocessor, and digital technologies to provide users with disk
drive having high capacity, fast access, and long-term reliability. A
rotary voice coil positioner with track following servo enables the
drive to position the read/write heads quickly and precisely.
Advanced 5.25-inch, carbon overcoated, thin film, Winchester
technology disks are driven by a brushless DC motor. The heads,
disks,preamplifiers, and head positioner coil and actuator are
enclosed in a sealed, contamination-resistant chamber to ensure high
data reliability. Two microprocessors control positioning during
track seeks, provide interface flexibility, and monitor drive opera-
tion.
Key Features
------------
The ORCA Technology OT5 760-SCSI disk drive includes a SCSI interface
encompassing all of the standard commands, most extended commands,
and a powerful ORCA Technology vendor specific command set. The
following is a list of OT5 760-SCSI features:
- 765 Unformatted capacity
- 14 ms average seek time
- 15 Mbit disk data rate
- Up to 2.0 MByte SCSI asynchronous transfer rate
- Up to 4.0 MByte SCSI synchronous transfer rate
- Embedded Thermal Compensation (ETC) for improved data integrity
- SCSI Standard and Extended Disk Command Set support
- SCSI Common Command Set support
- Disk formatting capabilities include track and cylinder skewing
- Variable sector sizes from 180 to 4,096 bytes
- Host transparent defect mapping
- Provides 48-bit Error Correcting Code (ECC)
- SCSI Bus parity generation with optional checking
- Supports arbitration, disconnect, and reconnect
- 64 KByte data buffer with full through parity
- Read look ahead and buffer cacheing support
- Consecutive sector transfer support
Formatted Capacity
------------------
7 x 4096 bytes/sector 701.9 MB
14 x 2048 bytes/sector 701.9 MB
28 x 1024 bytes/sector 701.9 MB
54 x 512 bytes/sector 676.8 MB
Seek Time
---------
+----------------------------------+--------+
| |760-SCSI|
+----------------------------------+--------+
|Track-to-Track msec. typ. | 3 |
+----------------------------------+--------+
|Average msec. typ. | 14.0 |
| msec. max. | 30.0 |
+----------------------------------+--------+
|Latency msec. avg. | 8.33 |
+----------------------------------+--------+
