Contex Wide Format Color Operator's Manual page 17

Installation
Device number setup – switch 1,2,3
Make sure the power to the computer and the scanner are OFF when
setting the SCSI device number, as the switch settings are only read
from the scanner DIL-switch during the scanner's power up.
You can set up the SCSI device no. for the scanner to any unused
SCSI device no. The combination of the three SCSI Device Address
switches determines the scanners device no. To set the SCSI device
no. to the one required, you simply set the switches 1, 2 and 3 to the
combination of ON/OFF values specified in the table below. The
scanner is set as SCSI Device no. 2 from the factory.
SCSI device no / Switch combination:
SCSI device no. 0
SCSI device no. 1
*SCSI device no. 2
SCSI device no. 3
SCSI device no. 4
SCSI device no. 5
SCSI device no. 6
SCSI device no. 7
* Factory Default
SCSI built-in active termination – switch 4
Scanners with SCSI interface connectors have a built-in active SCSI
termination that works better than a passive terminator at high transfer
rates.
The built-in active termination for the SCSI bus is enabled by setting
switch 4 on the SCSI switch to ON and disabled by setting it to OFF.
If the scanner is the last device on the SCSI bus, make sure the built-
in active SCSI termination is turned on. If the scanner is not the last
device make sure switch 4 is turned off. (see following illustrations).
Important: Never set switch 4 to ON and use a terminator block at the
same time.
1 2 3
ON ON ON
OFF ON ON
ON OFF ON
OFF OFF ON
ON ON OFF
OFF ON OFF
ON OFF OFF
OFF OFF OFF
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