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Appendix B - SCSI Backplane Boards B-7
Dual-Channel Configuration
In a dual-channel configuration, channel 1 supports the devices in slots 0 to 2, and
channel 2 supports the devices in slots 3 to 6. Set the channel configuration
switches to “Split” and set the terminators accordingly (Table B-3) to achieve a
dual-channel configuration. See Figure B-1 for the locations of the switches and
terminators.
Connect SCSI
channel 2 to
slots 3 to 6
Connect to external
SCSI devices
Connect SCSI
channel 1 to
slots 0 to 2
Connect to Wide
SCSI connector on
the system board or
SCSI controller board
Figure B-6 Dual-Channel Configuration
Table B-3 lists the terminator settings for the dual-channel configuration.
Table B-3 Terminator Settings for Dual-Channel Configuration
Terminator Setting
With External Device
RA1, RA2, RA3
RA4, RA5, RA6
Removed
Installed
Without External Device
RA1, RA2, RA3
RA4, RA5, RA6
Installed
Installed