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SCSI Interface
Item
SCSI controller
Number of SCSI channel(s)
Support Peripheral Type
Support Speed
SCSI Connectors Pin-out( J7B1, J7A1)
Connector Contact No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Chapter 1
Adapted AIC-7899 Ultra 160
Two independent Ultra 160 SCSI channels:
SCSI Channel A: 1 SCSI connector (68-pin 16-bit Ultra 160 SCSI-3
connector on CN38)
SCSI Channel B: 1 SCSI connector (68-pin 16-bit Ultra 160 SCSI-3
connector on CN32)
Single ended and Low Voltage Differential (LVD) devices
Supporting up to 160MB/sec. SCSI transfers
Signal Name
+DB(12)
+DB(13)
+DB(14)
+DB(15)
+DB(P1)
+DB(0)
+DB(1)
+DB(2)
+DB(3)
+DB(4)
+DB(5)
+DB(6)
+DB(7)
+DB(P)
GROUND
GROUND
RESERVED
RESERVED
RESERVED
GROUND
+ATN
GROUND
+BSY
+ACK
+RST
+MSG
+SEL
+C/D
+REQ
+I/O
+DB(8)
Specification
Signal Name
-DB(12)
-DB(13)
-DB(14)
-DB(15)
-DB(P1)
-DB(0)
-DB(1)
-DB(2)
-DB(3)
-DB(4)
-DB(5)
-DB(6)
-DB(7)
-DB(P)
GROUND
GROUND
RESERVED
RESERVED
RESERVED
GROUND
-ATN
GROUND
-BSY
-ACK
-RST
-MSG
-SEL
-C/D
-REQ
-I/O
-DB(8)
Connector Contact No.
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
11
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