Technical Product Specification

Intel® Server System SR2612UR TPS System Board Interconnects
Revision 1.3
Intel order number E76293-003
33
Table 22. SAS Connector Pin-out (J2)
Pin Signal name Pin Signal name
1 GND A1 GND
2 HOST1_TO_IO_1+ A2 RX0+
3 HOST1_TO_IO_1- A3 RX0-
4 GND A4 GND
5 HOST1_TO_IO_2+ A5 RX1+
6 HOST1_TO_IO_2- A6 RX1-
7 GND A7 GND
8 Sideband connection B8 SB0
9 Sideband connection B9 SB1
10 Sideband connection B10 SB2
11 Sideband connection B11 SB6
12 GND A12 GND
13 HOST1_TO_IO_3+ A13 RX2+
14 HOST1_TO_IO_3- A14 RX2-
15 GND A15 GND
16 HOST1_TO_IO_4+ A16 RX3+
17 HOST1_TO_IO_4- A17 RX3-
18 GND A18 GND
19 GND B1 GND
20 IO_TO_HOST1_1- B3 TX0-
21 IO_TO_HOST1_1- B2 TX0+
22 GND B4 GND
23 IO_TO_HOST1_2- B6 TX1-
24 IO_TO_HOST1_2+ B5 TX1+
25 GND B7 GND
26 Sideband connection A8 SB7
27 Sideband connection A9 SB3
28 Sideband connection A10 SB4
29 Sideband connection A11 SB5
30 GND B12 GND
31 IO_TO_HOST1_3- B14 TX2-
32 IO_TO_HOST1_3+ B13 TX2+
33 GND B15 GND
34 IO_TO_HOST1_4- B17 TX3-
35 IO_TO_HOST1_4+ B16 TX3+
36 GND B18 GND
5.2 Hot-swap SAS/SATA Backplane
The hot-swap backplane provides support for both SAS and SATA hard drives. There are no
hard drive cables that connect to the backplane. All hard drive control signals are routed from
the midplane board, which plugs directly into the backplane.