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Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 57
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Table 11.6.3-1c. Single ended, 80 pin cable pin assignments (Non-shielded connector)
Signal
Pin number
Signal
Pin number
+12 V
1
12 V GND
41
+12 V
2
12 V GND
42
+12 V
3
12 V GND
43
+12 V
4
12 V GND
44
NC
5
NC
45
NC
6
NC
46
NC
7
GND
47
NC
8
GND
48
NC
9
GND
49
NC
10
GND
50
-IO
11
GND
51
-REQ
12
GND
52
-CO
13
GND
53
-SEL
14
GND
54
-MSG
15
GND
55
-RST
16
GND
56
-ACK
17
GND
57
-BSY
18
GND
58
-ATN
19
GND
59
-DBP
20
GND
60
-DB7
21
GND
61
-DB6
22
GND
62
-DB5
23
GND
63
-DB4
24
GND
64
-DB3
25
GND
65
-DB2
26
GND
66
-DB1
27
GND
67
-DB0
28
GND
68
NC
29
GND
69
NC
30
GND
70
NC
31
GND
71
NC
32
GND
72
NC
33
GND
73
+5 V
34
5 V GND
74
+5 V
35
5 V GND
75
+5 V
36
5 V GND
76
SYNC
[1]
37
LEDC
[2]
77
MTRON [3]
38
DLYDST [4]
78
SCSIAO [5]
39
SCSIA1
[5]
79
SCSIA2
[5]
40
SCSIA3
[5]
80
Notes: Signals [1] thru [5] are used in place of installing jumpers and cables on option select connectors J2,
J5 and J6. See also notes following Figure 10.1-1.
[1] Synchronous spindle synchronizing signal, generated by either host or drive.
[2] Front panel LED signal; indicates drive activity for host front panel hard drive activity indicator.
[3] Asserted by host to enable Motor Start option (starts motor via SCSI bus command).
[4] Asserted by host to enable Delayed Motor Start option (motor starts at power on or after a delay
of 12 seconds times drive ID. This and [3] above are mutually exclusive options.
[5] Binary code on A3, A2, A1 and A0 asserted by host to set-up SCSI bus ID in drive.
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