SCSI Physical Characteristics
Chapter 5
Technical Reference Manual
Page 59
Interface Pin Assignments
The pin assignments for the interface connector are shown below:
Table 5-13
Interface Signal Definitions
Pin
Signal
Pin
Signal
01
GND
02
-DB0
03
GND
04
-DB1
05
GND
06
-DB2
07
GND
08
-DB3
09
GND
10
-DB4
11
GND
12
-DB5
13
GND
14
-DB6
15
GND
16
-DB7
17
GND
18
-DBP
19
GND
20
GND
21
GND
22
GND
23
RESERVED
24
RESERVED
25
OPEN
26
TERMPWR
27
RESERVED
28
RESERVED
29
GND
30
GND
31
GND
32
-ATN
33
GND
34
GND
35
GND
36
-BSY
37
GND
38
-ACK
39
GND
40
-RST
41
GND
42
-MSG
43
GND
44
-SEL
45
GND
46
-C/D
47
GND
48
-REQ
49
GND
50
-I/O
Notes:
1. The minus sign (-) indicates active low.
2. All odd pins except pin 25 must be connected to ground. Pin 25 is left open.
3. Pins marked Reserved are connected to ground.
