Acer Altos 12000 Series User Manual page 84

Split (Serial) Configuration
•
One cable connected from the system board (CN29) to the backplane board
(CN12 or CN13)
•
This creates a serial configuration, therefore the start terminator is on
the system board and must be set to Enabled. The end terminator is on
the SCSI backplane board and is always Enabled.
•
For this configuration, the maximum SCSI HDD quantity for one
channel is four.
The figure below shows the correlation between SCSI hard disk connectors
and switch ID settings.
Altos 12000 Series User's Guide
CN29: SCSI
channel B
CN12
Terminators
for slots 1-4
Terminators
for slots 5-8
CN13
CN32 & CN33:
SCSI channel A
ID 0
ID 1
ID 2
ID 3
ID 0
ID 1
ID 2
ID 3