IBM 8479 Hardware Maintenance Manual - Page 84
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Table 15. 68-pin SCSI connector pin-number assignments (continued) Pin Signal Pin Signal 19 Reserved 53 Reserved 20 Ground 54 Ground 21 +Attention 55 -Attention 22 Ground 56 Ground 23 +Busy 57 -Busy 24 +Acknowledge 58 -Acknowledge 25 +Reset 59 -Reset 26 +Message 60 -Message 27 +Select 61 -Select 28 +Control/Data 62 -Control/Data 29 +Request 63 -Request 30 +Input/Output 64 -Input/Output 31 +Data 8 65 -Data 8 32 +Data 9 66 -Data9 33 +Data 10 67 -Data 10 34 +Data 11 68 -Data 11 76 xSeries 200 Type 8479 and xSeries 200VL Type 8481: Hardware Maintenance Manual
Table
15.
68-pin
SCSI
connector
pin-number
assignments
(continued)
Pin
Signal
Pin
Signal
19
Reserved
53
Reserved
20
Ground
54
Ground
21
+Attention
55
-Attention
22
Ground
56
Ground
23
+Busy
57
-Busy
24
+Acknowledge
58
-Acknowledge
25
+Reset
59
-Reset
26
+Message
60
-Message
27
+Select
61
-Select
28
+Control/Data
62
-Control/Data
29
+Request
63
-Request
30
+Input/Output
64
-Input/Output
31
+Data
8
65
-Data
8
32
+Data
9
66
-Data9
33
+Data
10
67
-Data
10
34
+Data
11
68
-Data
11
76
xSeries
200
Type
8479
and
xSeries
200VL
Type
8481:
Hardware
Maintenance
Manual