Figure 4. EMM indicators
1. EMM ID 2. EMM status
3. Mini-SAS HD status 4. 7-segment LED
There are five bicolor LEDs, one blue LED, and four 7-segment LEDs on the EMM face.
Table 3. EMM indicators
Item Indicator Description Color Status
1 EMM ID Blue
● Blinking (on for one second and
off for one second): Identifying
EMM
● Off: Normal operation
2 EMM status Green
● On solid green: Normal operation
Amber
● Blinking (on for two seconds and
off for one second): EMM failure
3 Mini-SAS HD status Green
● On solid - port link is up.
● Blinking (on for one second and
off for one second): Identifying
Amber
● On solid - port link is up, but with
degraded speed. For example,
when you are connected to a
SAS3 endpoint.
● Blinking (on for two seconds and
off for one second): Fault on the
port.
4 7-segment LED N/A Not used
An EMM has four Mini-SAS HD ports and one USB type-C port.
Figure 5. EMM ports
8
System overview
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