Service Reference Guide

Service Reference Guide A–5
Connector Pin Assignments
SATA
Connector
Pin Signal Pin Usage Pin Usage
data
cable
power
cable
power
cable
S-1 Ground P-1 3.3 V power P-8 5 V power
S-2* A+ P-2 3.3 V power P-9 5 V power
S-3* A- P-3 3.3 V power P-10 Ground
S-4 Ground P-4 Ground P-11 Reserved
S-5** B- P-5 Ground P-12 Ground
S-6** B+ P-6 Ground P-13 12 V power
S-7 Ground P-7 5 V power P-14 12 V power
* S2 and S3 differential signal pair
**S5 and S6 differential signal pair
P-15 12 V power
Ultra SCSI
Connector and Icon
Pin Signal Pin Signal Pin Signal Pin Signal
1-11
12
13
14
Ground
Reserved
Open
Reserved
29
30
31
32
DB3
DB4
DB5
DB6
37
38
39
40
Reserved
TERMPWR
Reserved
Ground
45
46
47
48
RST #
MSG #
SEL #
C/D
15-25
26
27
28
Ground
DB0
DB1
DB2
33
34
35
36
DB7
DBP
Ground
Ground
41
42
43
44
ATN #
Ground
BSY #
ACK #
49
50
REQ #
Input/Output