SCSI 68 pin differential

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SCSI = Small Computer System Interface

SCSI-3 External Hi D-Sub (Differential)

Image:connector_dsubhi68f.png 68 pin hi-density D-SUB female connector at the controller and devices.

Image:connector_dsubhi68m.png 68 pin hi-density D-SUB male connector at the cable.

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

Notes

  • Direction is Device relative Bus (other Devices).
  • For more informations, references and sources go to SCSI Technology

References

Category:Buses Connectors

 

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