HP 743 Series Technical Reference Manual For Oems page 106

Table 5-13 identifies the single-ended SCSI connector pins.
Table 5-13 Single-Ended SCSI Connector Pinouts
Number
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
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Pin
Signal
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Pin
Signal
Number
26 DATA 0
27 DATA 1
28 DATA 2
29 DATA 3
30 DATA 4
31 DATA 5
32 DATA 6
33 DATA 7
34 Data Parity
35 GND
36 GND
37 GND
38 Term_Pwr
39 GND
40 GND
41 ATN
42 GND
43 BSY
44 ACK
45 RST
46 MSG
47 SEL
48 CD
49 REQ
50 IO
Electrical Information
5-17