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ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D 83 Table 19. SCA contact assignments for ST15150DC drives Signal name Connector Connector Signal contact number contact number name 12 VOLT 1 12 VOLT 2 12 VOLT 3 12 VOLT 4 RESERVED/NC 5 RESERVED/NC 6 − DB (11) 7 − DB (10) 8 − DB (9) 9 − DB (8) 10 − I/O 11 − REQ 12 − C/D 13 − SEL 14 − MSG 15 − RST 16 − ACK 17 − BSY 18 − ATN 19 − DB (P0) 20 − DB (7) 21 − DB (6) 22 − DB (5) 23 − DB (4) 24 − DB (3) 25 − DB (2) 26 − DB (1) 27 − DB (0) 28 − DB (P1) 29 − DB (15) 30 − DB (14) 31 − DB (13) 32 − DB (12) 33 5 VOLT 34 5 VOLT 35 5 VOLT 36 SYNC 37 RMT_START 38 SCSI ID(0) 39 SCSI ID(2) 40 41 12V GROUND 42 12V GROUND 43 12V GROUND 44 12V GROUND 45 RESERVED/NC 46 DIFF SENSE 47 + DB (11) 48 + DB (10) 49 + DB (9) 50 + DB (8) 51 + I/O 52 + REQ 53 + C/D 54 + SEL 55 + MSG 56 + RST 57 + ACK 58 + BSY 59 + ATN 60 + DB (P0) 61 + DB (7) 62 + DB (6) 63 + DB (5) 64 + DB (4) 65 + DB (3) 66 + DB (2) 67 + DB (1) 68 + DB (0) 69 + DB (P1) 70 + DB (15) 71 + DB (14) 72 + DB (13) 73 + DB (12) 74 5V GROUND 75 5V GROUND 76 5V GROUND 77 ACTIVE LED OUT 78 DLYD_START 79 SCSI ID(1) 80 SCSI ID(3) Note: 1. The hyphen preceding a signal name indicates that signal is active low.

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ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
83
Table 19.
SCA contact assignments for ST15150DC drives
Signal
Connector
Connector
Signal
name
contact number
contact number
name
12 VOLT
1
41
12V GROUND
12 VOLT
2
42
12V GROUND
12 VOLT
3
43
12V GROUND
12 VOLT
4
44
12V GROUND
RESERVED/NC
5
45
RESERVED/NC
RESERVED/NC
6
46
DIFF SENSE
-
DB (11)
7
47
+ DB (11)
-
DB (10)
8
48
+ DB (10)
-
DB (9)
9
49
+ DB (9)
-
DB (8)
10
50
+ DB (8)
-
I/O
11
51
+ I/O
-
REQ
12
52
+
REQ
-
C/D
13
53
+
C/D
-
SEL
14
54
+
SEL
-
MSG
15
55
+
MSG
-
RST
16
56
+
RST
-
ACK
17
57
+
ACK
-
BSY
18
58
+
BSY
-
ATN
19
59
+
ATN
-
DB (P0)
20
60
+
DB (P0)
-
DB (7)
21
61
+
DB (7)
-
DB (6)
22
62
+
DB (6)
-
DB (5)
23
63
+
DB (5)
-
DB (4)
24
64
+
DB (4)
-
DB (3)
25
65
+
DB (3)
-
DB (2)
26
66
+
DB (2)
-
DB (1)
27
67
+
DB (1)
-
DB (0)
28
68
+
DB (0)
-
DB (P1)
29
69
+
DB (P1)
-
DB (15)
30
70
+
DB (15)
-
DB (14)
31
71
+
DB (14)
-
DB (13)
32
72
+
DB (13)
-
DB (12)
33
73
+
DB (12)
5 VOLT
34
74
5V GROUND
5 VOLT
35
75
5V GROUND
5 VOLT
36
76
5V GROUND
SYNC
37
77
ACTIVE LED OUT
RMT_START
38
78
DLYD_START
SCSI ID(0)
39
79
SCSI ID(1)
SCSI ID(2)
40
80
SCSI ID(3)
Note:
1.
The hyphen preceding a signal name indicates that signal is active low.