Supermicro SuperChassis 836BA-R1K28B Manual de usuario Pagina 124

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E-4
SC836 Chassis Manual
#3. MG9072 Chips
The MG9072 chips are enclosure management
chips that support the SES-2 controller and
SES-2 protocols.
SAS Activity LED Header
Pin Denitions
Pin # Denition Pin # Denition
1 ACT IN#0 6 ACT IN#4
2 ACT IN#1 7 ACT IN#5
3 ACT IN#2 8 ACT IN#6
4 ACT IN#3 9 ACT IN#7
5 Ground 10 Empty
E-6 Front Connector and Pin Denitions
#1 - #2. Activity LED Header
The activity LED headers, designated JP26
and JP47, are used to indicate the activity
status of each SAS drive. These activity LED
headers are used by the host controller for
the SATA drives that previously had no activ-
ity status output. If using a SAS drive, and
for most SATA drives, these activity headers
are not required.The Activity LED Header is
located on the front panel. For the Activity
LED Header to work properly, connect using a
10-pin LED cable.
SAS Activity LED Header
Pin Denitions
Pin # Denition Pin # Denition
1 ACT IN#8 6 ACT IN#12
2 ACT IN#9 7 ACT IN#13
3 ACT IN#10 8 ACT IN#14
4 ACT IN#11 9 ACT IN#15
5 Ground 10 Empty
#4. Fan Connectors
The 4-pin connectors, designated JP54, JP56,
JP58 and JP60, provide power to the fans. See
the table on the right for pin denitions. These
4-pin connectors are compatible with 3-pin and
4-pin fans.
Fan Connectors
Pin# Denition
1 Ground
2 +12V
3 Tachometer
4 No connection
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