Dell PowerVault MD1220 Hardware Owner's Manual - Page 14

Enclosure Management Module, Indicator, Button, or, Connector, Description, SAS port

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Figure 1-6. Enclosure Management Module 12 3 4 56 7 Item Indicator, Button, or Icon Connector 1 System status indicator 2 Debug port 3 SAS port (In) IN 4 In port link status 5 SAS port (Out) OUT Description Blinks blue when the system identification button is pushed. You can identify a particular enclosure in a rack using the system identification indicator. For engineering use only. Provides SAS connections for cabling the host or an upchain expansion enclosure (unified mode only). Lights green when all the links to the port are connected. Lights amber when one or more links to the port are not connected. The LED remains off if enclosure is not connected. Provides SAS connections for cabling to the next down chain expansion enclosure in a daisy chain (unified mode only). NOTE: The SAS port Out is disabled if the enclosure is running in a split-mode configuration. 14 About Your Enclosure

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14
About Your Enclosure
Figure 1-6.
Enclosure Management Module
Item
Indicator, Button, or
Connector
Icon
Description
1
System status
indicator
Blinks blue when the system
identification button is pushed. You can
identify a particular enclosure in a rack
using the system identification indicator.
2
Debug port
For engineering use only.
3
SAS port (In)
IN
Provides SAS connections for cabling the
host or an upchain expansion enclosure
(unified mode only).
4
In port link status
Lights green when all the links to the
port are connected.
Lights amber when one or more links to
the port are not connected.
The LED remains off if enclosure is not
connected.
5
SAS port (Out)
OUT
Provides SAS connections for cabling to
the next down chain expansion enclosure
in a daisy chain (unified mode only).
NOTE:
The SAS port Out is disabled if the
enclosure is running in a split-mode
configuration.
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