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SCSI-II External Hi D-Sub (Differential) connector

pinout

50 pin hi-density D-SUB female connector layout
50 pin hi-density D-SUB female connector  at the controller & devices
Pin Name Dir Description
01GND---Ground
02+DB0<->+Data Bus 0
03+DB1<->+Data Bus 1
04+DB2<->+Data Bus 2
05+DB3<->+Data Bus 3
06+DB4<->+Data Bus 4
07+DB5<->+Data Bus 5
08+DB6<->+Data Bus 6
09+DB7<->+Data Bus 7
10+DBP<->+Data Bus Parity (odd Parity)
11DIFFSENS????
12res-Reserved
13TERMPWR<->Termination Power
14res-Reserved
15+ATN<--+Attention
16GND---Ground
17+BSY<->+Bus is busy
18+ACK<--+Acknowledge
19+RST<->+Reset
20+MSG-->+Message
21+SEL<->+Select
22+C/D-->+Control or Data
23+REQ-->+Request
24+I/O-->+In/Out
25GND---Ground
26GND---Ground
27-DB0<->-Data Bus 0
28-DB1<->-Data Bus 1
29-DB2<->-Data Bus 2
30-DB3<->-Data Bus 3
31-DB4<->-Data Bus 4
32-DB5<->-Data Bus 5
33-DB6<->-Data Bus 6
34-DB7<->-Data Bus Parity7
35-DBP<->-Data Bus Parity (odd Parity)
36GND---Ground
37res-Reserved
38TERMPWR<->Termination Power
39res-Reserved
40-ATN<---Attention
41GND---Ground
42-BSY<->-Bus is busy
43-ACK<---Acknowledge
44-RST<->-Reset
45-MSG-->-Message
46-SEL<->-Select
47-C/D-->-Control or Data
48-REQ-->-Request
49-I/O-->-In/Out
50GND---Ground

Note: Direction is Device relative Bus (other Devices)

50 pin hi-density D-SUB male connector diagram
50 pin hi-density D-SUB male connector  at the cable

Source:www.pinouts.ru


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