Appendix A. Connector Pin Assignments
SCSI 50-pin Connector
1
2
50
49
Figure 7. SCSI 50-pin Connector
This connector is a 50-pin, shrouded berg strip located on the system board.
Table 41. Pin Assignments for the SCSI 50-pin Connector
Pin Signal Name I/O Pin Signal Name I/O
1 Ground NA 2 DB0# I/O
3 Ground NA 4 DB1# I/O
5 Ground NA 6 DB2# I/O
7 Ground NA 8 DB3# I/O
9 Ground NA 10 DB4# I/O
11 Ground NA 12 DB5# I/O
13 Ground NA 14 DB6# I/O
15 Ground NA 16 DB7# I/O
17 Ground NA 18 DBP# I/O
19 Ground NA 20 Ground NA
21 Ground NA 22 Ground I
8
23 Ground NA 24 Ground NA
25 Not connected NA 26 TERM PWR NA
27 Ground NA 28 Ground NA
29 Ground NA 30 Ground NA
31 Ground NA 32 ATN# I/O
33 Ground NA 34 Ground NA
35 Ground NA 36 BSY# I/O
37 Ground NA 38 ACK# I/O
39 Ground NA 40 RST# I/O
41 Ground NA 42 MSG# I/O
43 Ground NA 44 SEL# I/O
45 Ground NA 46 C/D# I/O
47 Ground NA 48 REQ# I/O
49 Ground NA 50 I/O# I/O
8
This pin is used to detect an attached cable.
44 Technical Information Manual
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