Technical Product Specification

Intel® Server System SR1625UR TPS 4BSystem Board Interconnects
Revision 2.0 Intel order number E47487-012
37
Pin
Signal Description
13
SMB_CLK_P3V3
14
GND
15
SMB_DAT_P3V3
16
BBU_PFAIL_N
17
BBU_DDR_SEL
18
BBU_BBE
19
BBU_BBSTROBE
20
BBU_BBSTATUS
Table 28. Passive Midplane SATA/SAS Connector Pin-outs
J5A2 - SAS_7
J6A1 - SAS_6
J5B1 - SAS_4
J6B1 - SAS_2
Pin Signal Name
Pin Signal Name
Pin Signal Name
Pin Signal Name
1 GND
1 GND
1 GND
1 GND
2 SATA_ADDIN1_TX_P
2 SATA5_TX_P
2 SATA3_TX_P
2 SATA1_TX_P
3 SATA_ADDIN1_TX_N
3 SATA5_TX_N
3 SATA3_TX_N
3 SATA1_TX_N
4 GND
4 GND
4 GND
4 GND
5 SATA_ADDIN1_RX_N
5 SATA5_RX_N
5 SATA3_RX_N
5 SATA1_RX_N
6 SATA_ADDIN1_RX_P
6 SATA5_RX_P
6 SATA3_RX_P
6 SATA1_RX_P
7 GND
7 GND
7 GND
7 GND
J5A1- SAS_8
J6A2 - SAS_5
J5B2 - SAS_3
J6B2 - SAS_1
Pin Signal Name
Pin Signal Name
Pin Signal Name
Pin Signal Name
1 GND
1 GND
1 GND
1 GND
2 SATA_ADDIN2_TX_P
2 SATA4_TX_P
2 SATA2_TX_P
2 SATA0_TX_P
3 SATA_ADDIN2_TX_N
3 SATA4_TX_N
3 SATA2_TX_N
3 SATA0_TX_N
4 GND
4 GND
4 GND
4 GND
5 SATA_ADDIN2_RX_N
5 SATA4_RX_N
5 SATA2_RX_N
5 SATA0_RX_N
6 SATA_ADDIN2_RX_P
6 SATA4_RX_P
6 SATA2_RX_P
6 SATA0_RX_P
7 GND
7 GND
7 GND
7 GND
5.2 Bridge Board
The system utilizes a bridge board to route signals from the server board to the midplane board.
The bridge board carries signals for three USB ports, SSI front panel control signals, video,
various I
2
C buses, fan control signals, and a PCI Express* x4 bus for SAS controller function.
For details, see Table 22.