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

SCA=Single Connector Attachment

Drive connector: AMP Champ 557613-1 or AMP Champ 557114-5
Cable connector: AMP Champ 2-557103-1 or AMP Champ 2-557101-1

Pin | Name | Dir | Description
--- | --- | --- | ---
1 | 12V |  | +12 VDC
2 | 12V |  | +12 VDC
3 | 12V |  | +12 VDC
4 | 12V |  | +12 VDC
5 | 3.3V |  | +3.3 VDC
6 | 3.3V |  | +3.3 VDC
7 | -DB(11) |  | Data Bus 11
8 | -DB(10) |  | Data Bus 10
9 | -DB(9) |  | Data Bus 9
10 | -DB(8) |  | Data Bus 8
11 | -I/O |  | Input/Output
12 | -REQ |  | Request
13 | -C/D |  | Control/Data
14 | -SEL |  | Select
15 | -MSG |  | Message
16 | -RST |  | Reset
17 | -ACK |  | Acknowledge
18 | -BSY |  | Busy
19 | -ATN |  | Attention
20 | -P_CRCA | ? |
21 | -DB(7) |  | Data Bus 7
22 | -DB(6) |  | Data Bus 6
23 | -DB(5) |  | Data Bus 5
24 | -DB(4) |  | Data Bus 4
25 | -DB(3) |  | Data Bus 3
26 | -DB(2) |  | Data Bus 2
27 | -DB(1) |  | Data Bus 1
28 | -DB(0) |  | Data Bus 0
29 | -DB(P1) | ? |
30 | -DB(15) |  | Data Bus 15
31 | -DB(14) |  | Data Bus 14
32 | -DB(13) |  | Data Bus 13
33 | -DB(12) |  | Data Bus 12
34 | 5V |  | Ground (Signal)
35 | 5V |  | Ground (Signal)
36 | 5V CHARGE |  | Ground (Signal)
37 | SPINDLE SYNC | ? | Spindle Sync
38 | RMT_START | ? | Remote Start
39 | SCSI ID (0) |  | SCSI ID Bit 0
40 | SCSI ID (2) |  | SCSI ID Bit 2
41 | 12V GROUND |  | +12 VDC Ground
42 | 12V GROUND |  | +12 VDC Ground
43 | 12V GROUND |  | +12 VDC Ground
44 | MATED 1 | ? |
45 | 3.3V CHARGE |  | +3.3 VDC Charge
46 | DIFFSNS |  | Differential Sense
47 | +DB(11) |  | Data Bus 11
48 | +DB(10) |  | Data Bus 10
49 | +DB(9) |  | Data Bus 9
50 | +DB(8) |  | Data Bus 8
51 | +I/O |  | Input/Output
52 | +REQ |  | Request
53 | +C/D |  | Control/Data
54 | +SEL |  | Select
55 | +MSG |  | Message
56 | +RST |  | Reset
57 | +ACK |  | Acknowledge
58 | +BSY |  | Busy
59 | +ATN |  | Attention
60 | +P_CRCA | ? |
61 | +DB(7) |  | Data Bus 7
62 | +DB(6) |  | Data Bus 6
63 | +DB(5) |  | Data Bus 5
64 | +DB(4) |  | Data Bus 4
65 | +DB(3) |  | Data Bus 3
66 | +DB(2) |  | Data Bus 2
67 | +DB(1) |  | Data Bus 1
68 | +DB(0) |  | Data Bus 0
69 | +DB(P1) | ? |
70 | +DB(15) |  | Data Bus 15
71 | +DB(14) |  | Data Bus 14
72 | +DB(13) |  | Data Bus 13
73 | +DB(12) |  | Data Bus 12
74 | MATED 2 | ? |
75 | 5V GROUND |  | +5 VDC Ground
76 | 5V GROUND |  | +5 VDC Ground
77 | ACTIVE LED OUT | ? |
78 | DLYD_START | ? |
79 | SCSI ID (1) |  | SCSI ID Bit 1
80 | SCSI ID (3) |  | SCSI ID Bit 3

5: RESERVED/NC 6: RESERVED/NC 20: -DB(P0) 36: 5 VOLT 44: 12 V GROUND 45: RESERVED/NC 46: RESERVED/NC 74: 5 V GROUND

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

Contributor: | Joakim Ögren

Source: | SCA SFF-8015 Draft Rev 3.1

Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10