Hot Swap Backplane I2C* Connectors; Smbus Connector; Table 46. Hot-Swap Backplane I2C* Connector Pin-Out; Table 47. Smbus Connector Pin-Out - Penguin Computing Relion 1900e Technical Manual

10.5.4

Hot Swap Backplane I2C* Connectors

The server board includes two 3-pin hot swap backplane I2C* connectors. These are located near the center
of the board near the chipset heat sink, and towards the front left side of the board. Each is labeled as
"HSBP I2C". When cabled, these connectors provide a communication path for the onboard BMC to a hot
swap backplane, allowing for firmware updates and other platform management functions. These
connectors have the following pin-out.
10.5.5

SMBus Connector

The server board includes a 3-pin SMBus connector. This connector is located near the front left corner of
the server board and is labeled "SMBus". When cabled, this connector is used as an interface to the
embedded server management bus.
Revision 1.0
Relion 1900e/2900e Manual

Table 46. Hot-Swap Backplane I2C* Connector Pin-out

Signal Description
HSBP Data
Ground
HSBP Clock

Table 47. SMBus Connector Pin-out

Signal Description
SMB Data
Ground
SMB Clock
Pin#
1
2
3
Pin#
1
2
3
102