DSub Hi DSub
Request 1 49
Message 2 46
Input/Output 3 50
Reset 4 45
Acknowledge 5 44
Busy 6 43
Data Bus 0 8 26
Data Bus 3 10 29
Data Bus 5 11 31
Data Bus 6 12 32
Data Bus 7 13 33
Control/Data 15 48
Attention 17 41
Select 19 47
Data Parity 20 34
Data Bus 1 21 27
Data Bus 2 22 28
Data Bus 4 23 30
Termination Power 25 38
25 pin D-SUB male connector layout
25 pin D-SUB male connector
at the PC/Amiga/Mac
50 pin hi-density D-SUB male connector layout
50 pin hi-density D-SUB male connector
at the peripheral
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SCSI cable (D-Sub to Hi D-Sub) Ultra SCSI Single-ended visual pinout:
SCSI cable (D-Sub to Hi D-Sub) Ultra SCSI Single-ended diagram
click to enlarge
Source(s) of this and additional information: Hardware Book, 1) http://pinouts.ru/HD/ScsiExternalAmigaMac.shtml, 2) http://pinouts.ru/HD/ScsiExternalHiDSubDiff.shtml, 3) http://pinouts.ru/HD/ScsiExternalHiDSub.shtml
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