Scsi Connectors; Table C-8 Wide Scsi Pinouts - Digital Equipment AlphaStation 500 Series User Information

Technical Specifications

SCSI Connectors

There is one SCSI port that exits the AlphaStation 500 Series system unit:
•
A 68-pin high-density, wide port that is terminated at the I/O subsystem module A 68-
pin high-density, wide port that is terminated at the I/O subsystem module. See Table
C-8 for the SCSI pin assignments.
•
A narrow adapter (68 to 50 pin) is available for use with a CD-ROM .(Part number is
17-04009-01) See Table C-8 for the SCSI pin assignments.

Table C-8 Wide SCSI Pinouts

Signal Name
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
TERMPWR
TERMPWR
RESERVED
GROUND
GROUND
C-6 AlphaStation 500 Series User Information
Connector Cable
Contact Conductor
Number Number
1 1 2
2 3 4
3 5 6
4 7 8
5 9 10
6 11 12
7 13 14
8 15 16
9 17 18
10 19 20
11 21 22
12 23 24
13 25 26
14 27 28
15 29 30
16 31 32
17 33 34
18 35 36
19 37 38
20 39 40
21 41 42
Connector Signal
Contact Name
Number
35 -DB(12)
36 -DB(13)
37 -DB(14)
38 -DB(15)
39 -DB(P1)
40 -DB(0)
41 -DB(1)
42 -DB(2)
43 -DB(3)
44 -DB(4)
45 -DB(5)
46 -DB(6)
47 -DB(7)
48 -DB(P)
49 GROUND
50 GROUND
51 TERMPWR
52 TERMPWR
53 RESERVED
54 GROUND
55 -ATN