Quantum QXS G2 Series, Hardware Installation And Maintenance Manual

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System Overview 27
Expansion Chassis IOM
Figure 31 provides a rear view of the expansion chassis IOM used in the 5U84-drive systems. Ports
A/B/C ship configured with 12Gb/s HD mini-SAS (SFF-8644) external connectors.
Figure 31
Expansion Chassis IOM
IMPORTANT: RAID chassis and expansion configurations:
• When the expansion chassis shown above ( Figure 30 ) is used with RAID chassis for adding
storage, its middle HD mini-SAS expansion port (“B”) is disabled by the firmware.
• The Ethernet port on the expansion module is not used in RAID chassis and expansion
configurations, and is disabled.
Power Supply Unit (PSU)
Figure 32 provides and illustration of the PSU used in the 5U84 RAID chassis and the expansion
chassis (oriented for use in the left PSU Slot 0 and right PSU Slot 1).
Figure 32 5U84 Chassis PSU
2 3
4
1
5
6
1
Serial Port 2 SAS Port A
3 SAS Port B 4 SAS Port C
5 Ethernet Port 6 Lock/Release Handle
1
2
3 4 5
6
7