IBM xSeries 150 User Reference Manual page 72

Table 9. 68-pin SCSI connector pin-number assignments
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IBM® xSeries 150 : User's Reference
34
68
Pin Signal
1 +Data 12
2 +Data 13
3 +Data 14
4 +Data 15
5 +Data P1
6 +Data 0
7 +Data1
8 +Data 2
9 +Data 3
10 +Data 4
11 +Data 5
12 +Data 6
13 +Data 7
14 +Data P
15 Ground
16 DIFFSENS
17 Term power
18 Term power
19 Reserved
20 Ground
21 +Attention
22 Ground
23 +Busy
24 +Acknowledge
25 +Reset
26 +Message
27 +Select
28 +Control/Data
29 +Request
30 +Input/Output
31 +Data 8
32 +Data 9
1
35
Pin Signal
35 -Data 12
36 -Data 13
37 -Data 14
38 -Data 15
39 -Data P1
40 -Data 0
41 -Data 1
42 -Data 2
43 -Data 3
44 -Data 4
45 -Data 5
46 -Data 6
47 -Data 7
48 -Data P
49 Ground
50 Ground
51 Term power
52 Term power
53 Reserved
54 Ground
55 -Attention
56 Ground
57 -Busy
58 -Acknowledge
59 -Reset
60 -Message
61 -Select
62 -Control/Data
63 -Request
64 -Input/Output
65 -Data 8
66 -Data9