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SC116 Chassis Manual
E-5
Rear Connector Definitions
1. Backplane Main Power Connectors
The 4-pin connectors, designated JPW1
and JPW2, provide power to the backplane.
See the table on the right for pin definitions.
2. DC Power Input
This connector is the +12V DC power input
connector for the NVMe solid state drive,
which requires more power than typical
SAS/SATA drives.
3. Sideband Connector
This is the sideband connector for SAS2
and is designated T-SGPIO1.
4. SAS2 Connectors
The SAS2 connectors are designated JS1
(SAS2 in #1) and JS2 (SAS2 in #2).
5. SAS3 Connectors
JSM1 and JSM2 provide connections for
the SAS drive cables. Pins are defined
according the SAS standard.
6-7. NVMe Connectors
Two NVMe connectors are used to connect
the NVMe drive cables. Each connector
controls one NVMe SSD. Pins are defined
according the NVMe standard.
8. CPLD Upgrade Port
The JP23 connector is used only by
manufacturing to upgrade firmware.
Main Power
4-Pin Connector
Pin#
1
2 and 3
4
4-Pin Power
Connector (JPW3)
Pin#
1, 2
3, 4
Pin Definition
2
SDataIn
(SGPIO Data
In)
4
SDataOut
(SGPIO Data
Out)
6
GND
8
N/C
E-4
Definition
+12V
Ground
+5V
Definition
Ground
+12V
Sideband Connector
(T-SGPIO1)
Pin Definition
1
N/C
3
GND
5
SLoad
(SGPIO Load)
7
SClock
(SGPIO Clock)
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