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Magnum One (Mid-American Digital) (Disc Manufacturing).iso
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1991-05-17
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Western Digital is a registered trademark of Western Digital
Corporation; IBM PC, AT and XT are registered trademarks of the
International Business Machines Corporation; MS DOS, OS2 and PC DOS
and SCO Xenix are registered trademarks of Microsoft Corporation.
Speedstor is a registered trademark of Storage Dimensions; Disk
Manager is a registered trademark of Ontrack Computer Corporation.
WD1006-RAH
User Guide
The WD1006-RAH controller is designed to interface with up to two
Winchester hard disk drives with 2,7 RLL specifications in an IBM PC
AT or compatible system and will support drives with up to 16
read/write heads and 2048 cylinders. Each drive may be a different
configuration.
The advanced design of the WD1006-RAH implements the controllers'
most significant features, 1:1 interleave and the look-ahead track
cache to improve the throughput to the host.
Installation of the controller requires three steps: 1) verifying
jumper settings; 2) installing into the host computer; 3) formatting
the hard disk drives. To complete installation, you will need the
following:
DO NOT USE WITH MFM TYPE HARD DISK DRIVES
THE WD1006-RAH IS TO BE USED WITH RLL DRIVES ONLY
Two hard disk cables (3 if using 2 hard disk drives); Winchester RLL
hard disk drive; screwdriver; MSDOS Version 2.0 or later; IBM
Advanced Diagnostic diskette (or similar program for IBM
compatibles); FDISK and Format utility (normally included with
MSDOS).
Preparation of Controller
WARNING
HANDLE THE CONTROLLER BY THE ENDS OF THE BOARD
SOME OF THE CHIPS ARE STATIC SENSITIVE AND DAMAGE
MAY OCCUR IF THE BOARD IS INCORRECTLY HANDLED
Before you can install your WD1006-RAH, you will need to be certain
that the jumpers (small shorting plugs) are correctly set. Refer to
Table 1 for correct jumper settings. Modification of factory jumper
settings is rarely necessary. Modify jumpers only under the
direction of a qualified individual; i.e. your dealer.
┌───────────────────────────────────Drive 1─Drive 0─Control────────┐
│ U4─────┐ ┌───J2──┐ ┌─J3─┐ ┌───J4───┐ │
│ └─────┘ └───────┘ └────┘ └────────┘ │
│ W1 ∙∙∙ U7─────┐W2∙∙∙ U10──────┐ │
│ 123 └─────┘ ∙∙∙ └──────┘ │
│ ┌─┐┌─┐ W7 ∙∙∙W3 │
│ │ ││ │ ∙∙ ┌────┐ ┌─────┐ │
│ │ ││ │ W8 │ │ └─────┘ │
│ │ ││ │ ∙∙ │ │ W4∙∙ W5∙∙ │
│ U13─┘└U14 ∙∙ └───U15 ∙∙W6 │
│ W9 ∙∙ ∙∙ │
└───────────────────────────────┐ ┌──┐ W10 ┌───┘
WD1006-RAH └┴┴┴┴┴┴┴┴┴┴┘ └┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘
Table 1
Jumper Position Function
W1 1-2 Standard: Supports 16 heads. No
REDUCED WRITE CURRENT (RWC)
2-3 Supports 8 heads and RWC
W2 No Jumper No wait states requested
W3 1-2 Standard: Selects primary ports.
2-3 Selects secondary ports (Note: Most
host systems' BIOS device drivers
support primary ports only.
W4 Jumpered Drive LED is not latched; i.e., LED
lights for drive selection. REMOVE
W10 IF W4 IS INSTALLED.
W5 Jumpered
W6 Jumpered Standard: BIOS address C800
W5 Jumpered
W6 No Jumper BIOS address CA00
W5 No Jumper
W6 Jumpered BIOS address CC00
W5 No Jumper
W6 No Jumper BIOS disabled
W7 1-2 Standard: Enables RLL firmware
W8 No Jumper Standard: 4 ECC bytes sent to host
1-2 7 ECC bytes to host
W9 No Jumper Standard: Cacheing enabled
W10 No Jumper Standard: Non-latched mode.
1-2 Latched mode.
Hardware Installation
WARNING
MAKE SURE COMPUTER IS TURNED OFF
AND POWER IS DISCONNECTED
1. Verify that your host computer has at least a 135 watt power
supply. If the disk drive(s) is(are) being installed internally, it
is best to locate the controller in the nearest available expansion
slot to the drive.
2. Remove the blank expansion slot bracket. Put the bracket away
and save it for possible future use. The screw will be used to hold
the new controller in place.
3. The terminating resistor must be present only on the last hard
disk drive connected. If there are two drives, the terminating
resistor must be present on the second drive. Verify proper setting
of drive select switches for drive select 1 or 2. Refer to your
system owner's manual for information about proper drive termination
and select switches. DO NOT USE RADIAL SELECT OPTION.
4. Attach 34-pin control connector 1 to J4 on the controller board.
Make sure that Pin 1 of the cable connector goes to Pin 1 on the
controller board. Pin 1 of the cable connector is typically located
on the color coded side of the cable.
5. Connect control cable to drive.
6. Attach 20-pin data connector to J3 (Drive C or 0).
7. Attach 20-pin data connector to J2 (Drive D or 1).
8. Connect data cables to drives.
9. Attach Winchester activity LED connector to J6.
10. Install controller board into the expansion slot. Make sure that
the board is seated properly by pressing down on both ends of the
board. Secure the board with the bracket screw.
CAUTION
WHEN ROUTING CABLES, BE CAREFUL NOT TO PINCH
THEM. CABLES MUST NOT GET CAUGHT BETWEEN THE
COVER AND THE BOARDS, NOR SHOULD THEY OBSTRUCT
ANY AIR FLOW PATH FROM FANS OR VENTS.