Hardware Intel® Integrated RAID Module SROMBSASMR (AXXROMBSASMR) Technical Product Specification
Table 2. BBU Connector Pin-out
Server
Connector Pin
Number
RAID Module Pin
number Description
Server
Connector Pin
Number
RAID Module
Pin number Description
1 1 P3V3_AUX 26 2 P3V3_AUX
2 3 RST_PWRGD_PS_R 27 4 GND
3 5 TP_FW_SW_RAID_MODE 28 6 PE0_RX_DP0
4 7 GND 29 8 PE0_RX_DN0
5 9 PE0_TX_DP0 30 10 GND
6 11 PE0_TX_DN0 31 12 GND
7 13 GND 32 14 PE0_RX_DP1
8 15 GND 33 16 PE0_RX_DN1
9 17 PE0_TX_DP1 34 18 GND
10 19 PE0_TX_DN1 35 20 GND
11 21 GND 36 22 PE0_RX_DP2
12 23 GND 37 24 PE0_RX_DN2
13 25 PE0_TX_DP2 38 26 GND
14 27 PE0_TX_DN2 39 28 GND
15 29 GND 40 30 PE0_RX_DP3
16 31 GND 41 32 PE0_RX_DN3
17 33 PE0_TX_DP3 42 34 GND
18 35 PE0_TX_DN3 43 36 GND
19 37 GND 44 38 CLK_100M_IOP_DP
20 39 FM_SAS_PRSNT_R 45 40 CLK_100M_IOP_D N
21 41 TP_PE_WAKE_N 46 42 GND
22 43 FM_SAS_DISABLE_N 47 44 LED_HDD_ACT_N
23 45 P3V3 48 46 P3V3
24 47 P3V3 49 48 P3V3
25 49 P3V3 50 50 P3V3
2.3.9 BBU Interface The Intel® Integrated RAID Module SROMBSASMR board can be attached to an external
backup battery unit (BBU) using a cable assembly attached to the BBU connector.
Note: The 20-pin cable connector is keyed for proper orientation during insertion and can only
go in one way. Before inserting into the connector, note the keyed orientation of this plug and
avoid forcing it into the connector upside down, as doing so may damage the connector and
battery circuitry.
Revision 1.2
Intel order number E59029-003
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