Datasheet

System Board Interconnects Intel® Server System SR2500AL
Revision – 1.00
Intel order number D31980-004
28
The chassis also supports an active SAS / SAS RAID mid-plane. This system board
incorporates an LSI* LSISAS1068 SAS controller onto the board. See Chapter 5 for details
describing SAS / SAS RAID support. The following diagram shows the location for each
connector found on this board.
AF000046
B
F
A
L
D
C
E
G
H
J
I
K
Figure 22. SAS/SAS RAID Mid-plane Board
A
RAID Activation Key
Connector
G Fan 4 Connector
B Power Connector H Fan 3 Connector
C Mini-DIMM Connector I Fan 1 Connector
D Fan 6 Connector J Fan 2 Connector
E Fan 5 Connector K Battery
F Bridge Board Connector L Backplane Connector
The following tables define the connector pin-outs for both mid-plane boards.
Table 19. 120-pin Server Board-to-Mid-plane Bridge Board Connector Pin-out
PIN SIGNAL NAME PIN SIGNAL NAME
1 GND 61 SMB_SENSOR_3V3SB_CLK_BUF
2 PE1_ESB_TX_DN3 62 SMB_SENSOR_3V3SB_DAT_BUF
3 PE1_ESB_TX_DP3 63 FM_BRIDGE_PRSNT_N
4 GND 64 GND
5 PE_WAKE_N 65 PE1_ESB_RX_DN_C3
6 GND 66 PE1_ESB_RX_DP_C3
7 PE1_ESB_TX_DN2 67 GND
8 PE1_ESB_TX_DP2 68 FAN_PRSNT6_N
9 GND 69 GND
10 FAN_PRSNT5_N 70 PE1_ESB_RX_DN_C2
11 GND 71 PE1_ESB_RX_DP_C2
12 PE1_ESB_TX_DN1 72 GND