Seagate ST15150N Product Manual - Page 90

Table 17., Differential contact assignments P cable, for ST15150WD drives, Signal, Connector,

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80 ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D Table 17. Differential contact assignments (P cable) for ST15150WD drives Signal name DB (12) DB (13) DB (14) DB (15) DB (P1) GROUND Connector contact number 1 2 3 4 5 6 Connector contact number 35 36 37 38 39 40 Signal name −DB (12) −DB (13) −DB (14) −DB (15) −DB (P1) GROUND DB (0) 7 DB (1) 8 DB (2) 9 DB (3) 10 DB (4) 11 DB (5) 12 DB (6) 13 DB (7) 14 DB (P) 15 DIFFSENS 16 41 −DB (0) 42 −DB (1) 43 −DB (2) 44 −DB (3) 45 −DB (4) 46 −DB (5) 47 −DB (6) 48 −DB (7) 49 −DB (P) 50 GROUND TERMPWR 17 51 TERMPWR TERMPWR 18 52 TERMPWR RESERVED 19 ATN 20 GROUND 21 53 RESERVED 54 −ATN 55 GROUND BSY 22 ACK 23 RST 24 MSG 25 SEL 26 C/D 27 REQ 28 I/O 29 GROUND 30 DB (8) 31 DB (9) 32 DB (10) 33 DB (11) 34 56 −BSY 57 −ACK 58 −RST 59 −MSG 60 −SEL 61 −C/D 62 −REQ 63 −I/O 64 GROUND 65 −DB (8) 66 −DB (9) 67 −DB (10) 68 −DB (11) Notes: 1. The hyphen preceding a signal name indicates that signal is active low. 2. Eight-bit devices that connect to the P cable should leave the following signals open: −DB(12), −DB(13), −DB(14), −DB(15), −DB(P1), −DB(8), −DB(9), −DB(10), −DB(11), DB(12), DB(13), DB(14), DB(15), DB(P1), DB(8), DB(9), DB(10), and DB(11). All other signals should be connected as defined.

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80
ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
Table 17.
Differential contact assignments (P cable)
for ST15150WD drives
Signal
Connector
Connector
Signal
name
contact number
contact number
name
DB (12)
1
35
-
DB (12)
DB (13)
2
36
-
DB (13)
DB (14)
3
37
-
DB (14)
DB (15)
4
38
-
DB (15)
DB (P1)
5
39
-
DB (P1)
GROUND
6
40
GROUND
DB (0)
7
41
-
DB (0)
DB (1)
8
42
-
DB (1)
DB (2)
9
43
-
DB (2)
DB (3)
10
44
-
DB (3)
DB (4)
11
45
-
DB (4)
DB (5)
12
46
-
DB (5)
DB (6)
13
47
-
DB (6)
DB (7)
14
48
-
DB (7)
DB (P)
15
49
-
DB (P)
DIFFSENS
16
50
GROUND
TERMPWR
17
51
TERMPWR
TERMPWR
18
52
TERMPWR
RESERVED
19
53
RESERVED
ATN
20
54
-
ATN
GROUND
21
55
GROUND
BSY
22
56
-
BSY
ACK
23
57
-
ACK
RST
24
58
-
RST
MSG
25
59
-
MSG
SEL
26
60
-
SEL
C/D
27
61
-
C/D
REQ
28
62
-
REQ
I/O
29
63
-
I/O
GROUND
30
64
GROUND
DB (8)
31
65
-
DB (8)
DB (9)
32
66
-
DB (9)
DB (10)
33
67
-
DB (10)
DB (11)
34
68
-
DB (11)
Notes:
1.
The hyphen preceding a signal name indicates that signal is active low.
2.
Eight-bit devices that connect to the P cable should leave the following
signals open:
-
DB(12),
-
DB(13),
-
DB(14),
-
DB(15),
-
DB(P1),
-
DB(8),
-
DB(9),
-
DB(10),
-
DB(11), DB(12), DB(13), DB(14), DB(15), DB(P1),
DB(8), DB(9), DB(10), and DB(11). All other signals should be connected
as defined.