LED
External SCSI connector
Edge
Figure 2. BT-540CF Board Layout
Step 2. Setting the SCSI Device ID
Each SCSI device must be assigned a unique SCSI ID
ranging from 0 through 7. Most SCSI peripheral devic-
es are shipped with a pre-assigned SCSI ID. Your
Logic adapter is set to SCSI ID 7 by default.
Note: The SCSI ID
for
your boot drive
be lower
other drives. BIOS
ID
find the boot drive.
If needed, change the SCSI ID for the peripheral devic-
es as recommended in the owner’s manual. The only
time you may need to change the adapter ID is when
multiple adapters share a common SCSI bus (see the
Host Adapter SCSI ID option
(Step 7)).
Step 3. Terminating SCSI Devices
The first and last SCSI devices connected together on a
SCSI bus must have terminators installed or enabled.
Terminators, which can be connected to either SCSI de-
vices or SCSI cables,
required for reliable operation
of the SCSI bus.
If more than two SCSI devices
connected in a SCSI
daisy chain, you must remove/disable the terminators
on the middle device(s).
If the BT-54XC is not being installed at either end of the
SCSI bus, disable its terminators by using the
Adapter
SCSI Terminators ON
option on the
Configu-
ration Menu (see Step 7).
Step 4. Configuring Switch Settings
Before installing the adapter, check the switch settings
to verify that the default settings for BIOS Address and
Port Address do not conflict with other installed cards.
controller
not used
Figure 3. BT-54XC Switch Detail
I/O Port Address must
adapter
is factory-shipped with
Port
Address 330. Check for
conflicts with other cards.
card
in the system must
BIOS
enabled.
default the
BIOS
is
at address
DCOOOH.
If unavailable, change to one of the
addresses listed in the table
below.
Switch enables/disables the
floppy connector on
the
BT-545C.
Switch 8 is ON (enabled) by default.
SW1
Address
ON ON
ON
330
(default)
ON ON
OFF
334
ON
OFF ON
230
O N
OFF
OFF
234
O F F O N
O N
130
O F F O N
OFF
134
OFF OFF X
X
SW6
BIOS Address
ON
ON
ON
DC000 (default)
O N
O N
OFF
ON
OFF ON
O N
OFF
OFF
Do000
OFF ON
O N
cc000
OFF ON
OFF
OFF
OFF X
Disabled
SW 8
Floppy Connector (BT-545C only)
ON
OFF
Enabled (default)
Disabled
(SW
Used)
Care)
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