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Ultra320 SCSI Connector: SCSI 1 (Optional)
SCSI (Small Computer System Interface) is a hardware interface that allows
for connection of up to 15 peripheral devices. The mainboard provides one SCSI
channel (SCSI 1) for you to connect SCSI devices such as SCSI hard disks.
35
1
SCSI 1
68-Pin Ultra320 SCSI Connector
Pin
Description
1
+DB(12)
2
+DB(13)
68
3
+DB(14)
34
4
+DB(15)
5
+DB(P1)
6
+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
GROUND
16
DIFFSENS
17
TERMPWR
18
TERMPWR
19
RESERVED
20
GROUND
21
+ATN
22
GROUND
23
+BSY
24
+ACK
25
+RST
26
+MSG
27
+SEL
28
+C/D
29
+REQ
30
+I/O
31
+DB(8)
32
+DB(9)
33
+DB(10)
34
+DB(11)
Mainboard Hardware
Pin
Description
35
-DB(12)
36
-DB(13)
37
-DB(14)
38
-DB(15)
39
-DB(P1)
40
-DB(0)
41
-DB(1)
42
-DB(2)
43
-DB(3)
44
-DB(4)
45
-DB(5)
46
-DB(6)
47
-DB(7)
48
-DB(P)
49
GROUND
50
GROUND
51
TERMPWR
52
TERMPWR
53
RESERVED
54
GROUND
55
-ATN
56
GROUND
57
-BSY
58
-ACK
59
-RST
60
-MST
61
-SEL
62
-C/D
63
-REQ
64
-I/O
65
-DB(8)
66
-DB(9)
67
-DB(10)
68
-DB(11)
3-13
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