SCSI External Centronics 50 (Differential)

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SCSI = Small Computer System Interface

50 PIN CENTRONICS FEMALE 50 PIN CENTRONICS FEMALE at the controller & devices

50 PIN CENTRONICS MALE 50 PIN CENTRONICS MALE at the cable

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

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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