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Hardware Description and Basic Operations
Rear View – Connectors and Indicators
Figure 32: Rear view of a Storage Expansion Module
The I/O module is a component that controls how the controller and the drives interact.
Figure 33: I/O module
Explanation
DI (OUT) port, DI (IN) port: These ports are connectors for QSFP cables.
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LEDs: The states of LEDs are listed below.
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U41840-J-Z125-7-76
I/O module (IOM6#0)
Power supply unit (PSU#0)
These are not used.
FAULT LED
I/O module (IOM6#1)
Power supply unit (PSU#1)
DI (IN) LINKUP LED
DI (IN) port
DI (OUT) LINKUP LED
DI (OUT) port
Storage Modules
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