6 80-pin sca2 hard disk drive connectors – Intel SR6850HW4 User Manual
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Intel® Server Platform SR6850HW4 TPS
Cables and Connectors
Revision 1.0
Intel order number D23151-001
41
Connector Pin
Signal Name
Connector Pin
Signal Name
26 SCSI(A:B)_MSG_P
60
SCSI(A:B)_MSG_N
27 SCSI(A:B)_SEL_P
61
SCSI(A:B)_SEL_N
28 SCSI(A:B)_CD_P
62
SCSI(A:B)_CD_N
29 SCSI(A:B)_REQ_P
63
SCSI(A:B)_REQ_N
30 SCSI(A:B)_IO_P
64
SCSI(A:B)_IO_N
31 SCSI(A:B)_DB_P8
65
SCSI(A:B)_DB_N8
32 SCSI(A:B)_DB_P9
66
SCSI(A:B)_DB_N9
33 SCSI(A:B)_DB_P10
67
SCSI(A:B)_DB_N10
34 SCSI(A:B)_DB_P11
68
SCSI(A:B)_DB_N11
4.2.6 80-pin SCA2 Hard Disk Drive Connectors
The Server Platform SR6850HW4 SCSI Backplane Board has ten SCA2 connectors.
1
40
41
80
Figure 19. SCA2 80-Pin SCSI Connector
Table 15. SCA2 Drive Connector Pinout
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
1 +12V
21 LVD_DB7_N
41 GND
61 LVD_DB7_P
2 +12V
22 LVD_DB6_N
42 GND
62 LVD_DB6_P
3 +12V
23 LVD_DB5_N
43 GND
63 LVD_DB5_P
4 +12V
24 LVD_DB4_N
44 SCSI_MATED
64 LVD_DB4_P
5 NC
25 LVD_DB3_N
45 NC
65 LVD_DB3_P
6 NC
26 LVD_DB2_N
46 DIFFSENSE 66 LVD_DB2_P
7 LVD_DB11_N
27 LVD_DB1_N
47 LVD_DB11_P
67 LVD_DB1_P
8 LVD_DB10_N
28 LVD_DB0_N
48 LVD_DB10_P
68 LVD_DB0_P
9 LVD_DB9_N
29 LVD_DBP1_N
49 LVD_DB9_P 69 LVD_DBP1_P
10 LVD_DB8_N
30 LVD_DB15_N
50 LVD_DB8_P 70 LVD_DB15_P
11 LVD_IO_N 31 LVD_DB14_N
51 LVD_IO_P 71 LVD_DB14_P
12 LVD_REQ_N
32 LVD_DB13_N
52 LVD_REQ_P
72 LVD_DB13_P
13 LVD_CD_N 33 LVD_DB12_N
53 LVD_CD_P 73 LVD_DB12_P
14 LVD_SEL_N 34 +5V
54 LVD_SEL_P 74 SCSI_MATED
15 LVD_MSG_N
35 +5V
55 LVD_MSG_P
75 GND