Scsi Backplane - Asus AR1000 Hardware Reference Manual

II. System Components
• 2-9. SCSI Backplane
The SCSI backplane of this system is comprised of two SCSI backplane boards
(DA-BP5) with 68-pin SCSI connectors (used by the system), 80-pin SCA
connectors (used by the hard drives), power inputs, and SCSI ID dip switches.
This configuration allows Ultra2 SCSI SCA hard disk drives to be docked
into the system. The DA-BP5 SCSI board does not have built-in termination.
Therefore, the included terminator block must be used on the end connector.

SCSI Backplane

Board Front Side
PWR3
Connector
PWR2
Connector
PWR1
Connector
SMB Out
SCSI Backplane
Board Back Side
1.6" Tray
Connector #5B
1.6" Tray
Connector #3B
1.6" Tray
Connector #1
24 AR1000 RAID Subsystem Hardware Reference Guide
SCSI ID Select DIP Switches
Fan Connector
SMB In
This connector ei-
ther connects to the
RAID controller
through the Ultra2
cable or is termi-
nated
This connector
must connect to a
SCSI device or be
terminated.
1" Tray
Connector #5
1" Tray
Connector #4
Fan Control Board
Connector
1" Tray
Connector #3
1" Tray
Connector #2
1" Tray
Connector #1