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SCSI-III External Hi D-Sub (Single-ended) connector

pinout

68 pin hi-density D-SUB female connector layout
68 pin hi-density D-SUB female connector  at the controller & devices
Pin Name Dir Description
1-16GND---Ground
17TERMPWR<->Termination Power
18TERMPWR<->Termination Power
19res<->reserved
20-34GND---Ground
35DB12<->Data Bus 12
36DB13<->Data Bus 13
37DB14<->Data Bus 14
38DB15<->Data Bus 15
39DPB1<->Data Parity (odd Parity)
40DB0<->Data Bus 0
41DB1<->Data Bus 1
42DB2<->Data Bus 2
43DB3<->Data Bus 3
44DB4<->Data Bus 4
45DB5<->Data Bus 5
46DB6<->Data Bus 6
47DB7<->Data Bus 7
48DPB<->Data Parity (odd Parity)
49GND---Ground
50GND---Ground
51TERMPWR<->Termination Power
52TERMPWR<->Termination Power
53res---reserved
54GND---Ground
55/ATN<--Attention
56GND---Ground
57/BSY<->Busy
58/ACK<--Acknowledge
59/RST<->Reset
60/MSG-->Message
61/SEL<->Select
62/C/D-->Control/Data
63/REQ-->Request
64/I/O-->Input/Output
65DB8<->Data Bus 8
66DB9<->Data Bus 9
67DB10<->Data Bus 10
68DB11<->Data Bus 11

Note: Direction is Device relative Bus (other Devices)

68 pin male connector diagram
68 pin male connector  at the cable

Source:www.pinouts.ru