Technical Specifications

A2091 Hard Disk Interface Card

Sockets for 2 MB of 16-bit RAM

CMOS 256K x 4 DRAMs 120ns or faster

RAM can be installed as 512k, 1MB or 2MB
Autoboot ROMs 16K
SCSI Interface

ANSI X3T9.2 compatible

DB-25 SCSI connector

50-pin internal SCSI connector
Host Interface connecto to 100 pin ZorroII connector on the Amiga
Power requirements
+5V @ 1A, +12V @ 0A, No hard-drive on card
+5V @ 2A, +12V @ 1A, Hard drive on card max
Maximum power consumption of card-mounted hard-drive

+5V @ 1A, +12V @ 1A continuous, 2A maximum startup

Jumper Settings:
Jumper 1:  Memory Size
           2 Meg
           1 Meg
           512k
           0 k
Jumper 2:  Auto: Enables Autoboot ROMs Kickstart 1.3 or higher
           Dis:  Disables Autoboot ROMs Kickstart 1.2
Jumper 3:  Factory Use Only
           Will set interupts (this is not a toy)
Jumper 5:
    Option 1: OFF  LUN Disabled - One drive at each address
              ON   LUN Enabled - Multiple drives at each address
    Option 2: OFF  Time-out disabled - Short wait period for
                   drive parity checking enabled
              ON   Time-out enabled - Long wait period for drive
                   Parity checking disabled on message-in phase
    Option 4: Reserved
Jumper 201: Factory Use Only