2-2
BPN-NVMe3-116UN Backplane
User's Guide
#23. Backplane Main Power Connectors
The 4-pin connectors, designated JPWR1
and JPWR2, provide power to the back-
plane. See the table on the right for pin
definitions.
2-2 Front Connector Pin Definitions
#21. - 22. SAS Connectors
The SAS connectors are used to connect
the SAS or SATA drive cables. The 2 ports
are designated SAS0 and SAS1, for drives
at DRV#18 and DRV#19 if those drives are
used for SAS3, SAS2, or SATA3 devices.
(See section 2-4 for SAS drive locations.)
#1. - 20. NVMe Connectors
The NVMe ports are used to connect the
NVMe drive cables. Each connector con-
trols one NVMe drive. Pins are defined
according to the NVMe standard. The con-
nectors are designated CN1 through CN20.
Backplane
Main Power
4-Pin Connector
Pin# Definition
1 and 2
Ground
3 and 4
+12VDC
Sideband Connector
(T-SGPIO1)
Pin Definition
Pin Definition
2
SDataIn
(SGPIO Data
In)
1
N/C
4
SDataOut
(SGPIO Data
Out)
3
GND
6
GND
5
SLoad
(SGPIO Load)
8
N/C
7
SClock
(SGPIO Clock)
#24. Sideband Connector
This is the sideband connector for SAS3
and is designated SGPIO and J32.