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Connector pinout: SCSI External Centronics 50 (Differential)


SCSI External Centronics 50 (Differential)

At the controller & devices



At the cable



pinnamedirectiondescriptioncolor
1GND------Ground
2+DB0IN/OUT+Data Bus 0
3+DB1IN/OUT+Data Bus 1
4+DB2IN/OUT+Data Bus 2
5+DB3IN/OUT+Data Bus 3
6+DB4IN/OUT+Data Bus 4
7+DB5IN/OUT+Data Bus 5
8+DB6IN/OUT+Data Bus 6
9+DB7IN/OUT+Data Bus 7
10+DBPIN/OUT+Data Bus Parity (odd Parity)
11DIFFSENS????
12res-Reserved
13TERMPWRIN/OUTTermination Power
14res-Reserved
15+ATNIN+Attention
16GND------Ground
17+BSYIN/OUT+Bus is busy
18+ACKIN+Acknowledge
19+RSTIN/OUT+Reset
20+MSGOUT+Message
21+SELIN/OUT+Select
22+C/DOUT+Control or Data
23+REQOUT+Request
24+I/OOUT+In/Out
25GND------Ground
26GND------Ground
27-DB0IN/OUT-Data Bus 0
28-DB1IN/OUT-Data Bus 1
29-DB2IN/OUT-Data Bus 2
30-DB3IN/OUT-Data Bus 3
31-DB4IN/OUT-Data Bus 4
32-DB5IN/OUT-Data Bus 5
33-DB6IN/OUT-Data Bus 6
34-DB7IN/OUT-Data Bus Parity7
35-DBPIN/OUT-Data Bus Parity (odd Parity)
36GND------Ground
37res-Reserved
38TERMPWRIN/OUTTermination Power
39res-Reserved
40-ATNIN-Attention
41GND------Ground
42-BSYIN/OUT-Bus is busy
43-ACKIN-Acknowledge
44-RSTIN/OUT-Reset
45-MSGOUT-Message
46-SELIN/OUT-Select
47-C/DOUT-Control or Data
48-REQOUT-Request
49-I/OOUT-In/Out
50GND------Ground