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25 pin D-SUB female connector layout
25 pin D-SUB female connector
at the controller
25 pin D-SUB male connector layout
25 pin D-SUB male connector
at the cable
Pin Name Dir Description
1/REQ-->Request
2/MSG-->Message
3I/O-->Input/Output
4/RST<->Reset
5/ACK<--Acknowledge
6BSY<->Busy
7GND---Ground
8DB0<->Data Bus 0
9GND---Ground
10DB3<->Data Bus 3
11DB5<->Data Bus 5
12DB6<->Data Bus 6
13DB7<->Data Bus 7
14GND---Ground
15C/D-->Control/Data
16GND---Ground
17/ATN<--Attention
18GND---Ground
19/SEL<->Select
20PARITY<->Data Parity
21DB1<->Data Bus 1
22DB2<->Data Bus 2
23DB4<->Data Bus 4
24GND---Ground
25TMPWR<->Termination Power
Note: Direction is Device relative Bus (other Devices). Total length of all SCSI cables should not exceed 20 feet (6 meters).
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Pinouts.ru > HDD connectors pinouts > Pinout of SCSI External D-Sub (PC/Amiga/Apple Macintosh) and layout of 25 pin D-SUB female connector and 25 pin D-SUB male connector
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