BBU Connector Pin-out
I2C Connector Pin-Out
Intel® RAID Controller RS25DB080 Hardware User's Guide
Table 3. BBU Connector Pin-out
Pin #
1
P12V
2
GND
3
BATT_PRSNT
4
GND
5
P1V8
6
GND
7
P3V3
8
GND
9
VBB_DDR_MEM
10
GND
11
P3V3_STBY
12
GND
13
SCL
14
GND
15
SDA
16
PFAIL_L
17
GND
18
BBE
19
BBSTROBE
20
BBSTATUS
Table 4. I2C Connector Pin-Out
Pin Number
1
2
3
Name
Description
12V Power
Ground
Battery Present
Ground
1.8V Power
Ground
3.3V Power
Ground
DDR/DDRII Power
Ground
3.3V auxiliary power
Ground
I2C Clock
Ground
I2C Data
Power Fail
Ground
Battery Backup Enabled
Battery Backup Strobe
Battery Backup Status
Description
SMB_SAS_SES_SDA
GND
SMB_SAS_SES_SCL
21
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