# SCSI-III External Hi D-Sub (Differential)

(at the controller & devices).
(To the cable).

68 PIN HI-DENSITY D-SUB FEMALE at the controller & devices.
68 PIN HI-DENSITY D-SUB MALE at the cable.

Pin | Name | Dir | Description
--- | --- | --- | ---
1 | +DB12 |  | Data Bus 12
2 | +DB13 |  | Data Bus 13
3 | +DB14 |  | Data Bus 14
4 | +DB15 |  | Data Bus 15
5 | +DPB1 |  | Data Parity (odd Parity)
6 | GND |  | Ground
7 | +DB0 |  | Data Bus 0
8 | +DB1 |  | Data Bus 1
9 | +DB2 |  | Data Bus 2
10 | +DB3 |  | Data Bus 3
11 | +DB4 |  | Data Bus 4
12 | +DB5 |  | Data Bus 5
13 | +DB6 |  | Data Bus 6
14 | +DB7 |  | Data Bus 7
15 | +DPB |  | Data Parity (odd Parity)
16 | DIFFSENSE | ? | Diff Sense?
17 | TERMPWR |  | Termination Power
18 | TERMPWR |  | Termination Power
19 | res |  | reserved
20 | +ATN |  | Attention
21 | GND |  | Ground
22 | +BSY |  | Busy
23 | +ACK |  | Acknowledge
24 | +RST |  | Reset
25 | +MSG |  | Message
26 | +SEL |  | Select
27 | +C/D |  | Control/Data
28 | +REQ |  | Request
29 | +I/O |  | Input/Output
30 | GND |  | Ground
31 | +DB8 |  | Data Bus 8
32 | +DB9 |  | Data Bus 9
33 | +DB10 |  | Data Bus 10
34 | +DB11 |  | Data Bus 11
35 | -DB12 |  | Data Bus 12
36 | -DB13 |  | Data Bus 13
37 | -DB14 |  | Data Bus 14
38 | -DB15 |  | Data Bus 15
39 | -DPB1 |  | Data Parity (odd Parity)
40 | GND |  | Ground
41 | -DB0 |  | Data Bus 0
42 | -DB1 |  | Data Bus 1
43 | -DB2 |  | Data Bus 2
44 | -DB3 |  | Data Bus 3
45 | -DB4 |  | Data Bus 4
46 | -DB5 |  | Data Bus 5
47 | -DB6 |  | Data Bus 6
48 | -DB7 |  | Data Bus 7
49 | -DPB |  | Data Parity (odd Parity)
50 | GND |  | Ground
51 | TERMPWR |  | Termination Power
52 | TERMPWR |  | Termination Power
53 | res |  | reserved
54 | -ATN |  | Attention
55 | GND |  | Ground
56 | -BSY |  | Busy
57 | -ACK |  | Acknowledge
58 | -RST |  | Reset
59 | -MSG |  | Message
60 | -SEL |  | Select
61 | -C/D |  | Control/Data
62 | -REQ |  | Request
63 | -I/O |  | Input/Output
64 | GND |  | Ground
65 | -DB8 |  | Data Bus 8
66 | -DB9 |  | Data Bus 9
67 | -DB10 |  | Data Bus 10
68 | -DB11 |  | Data Bus 11

Note: Direction is Device relative Bus (other Devices).

Contributor: Joakim Ögren

Source:
SCSI 68 Pin Differential pinout at The Pin-Out directory

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-07