Scsi Port Connector - HP Digital AlphaStation 255 Family User Information

SCSI Port Connector

The external SCSI connector is a 50-pin high-density connector. Table B–10 lists the pin
assignments.
Table B–10: SCSI Port Pinouts
Pin Signal
1 gnd
2 gnd
3 gnd
4 gnd
5 gnd
6 gnd
7 gnd
8 gnd
9 gnd
10 gnd
11 gnd
12 reserved
13 open
14 reserved
15 gnd
16 gnd
17 gnd
18 gnd
19 gnd
20 gnd
21 gnd
22 gnd
23 gnd
24 gnd
25 gnd
Technical Specifications
Pin Signal
26 –DB (0)
27 –DB (1)
28 –DB (2)
29 –DB (3)
30 –DB (4)
31 –DB (5)
32 –DB (6)
33 –DB (7)
34 –DB (P)
35 gnd
36 gnd
37 reserved
38 TERMPWR
39 reserved
40 gnd
41 –ATN
42 gnd
43 –BSY
44 –ACK
45 –RST
46 –MSG
47 –SEL
48 –CD
49 –REQ
50 –I/O
B–7