SCSI External D-Sub (PC/Amiga/Mac)

Pinout

25 PIN D-SUB FEMALE at the controller.

25 PIN D-SUB MALE at the cable.

Pin	Name	Dir	Description
1	/REQ	→	Request
2	/MSG	→	Message
3	I/O	→	Input/Output
4	/RST	↔	Reset
5	/ACK	←	Acknowledge
6	BSY	↔	Busy
7	GND	─	Ground
8	DB0	↔	Data Bus 0
9	GND	─	Ground
10	DB3	↔	Data Bus 3
11	DB5	↔	Data Bus 5
12	DB6	↔	Data Bus 6
13	DB7	↔	Data Bus 7
14	GND	─	Ground
15	C/D	→	Control/Data
16	GND	─	Ground
17	/ATN	←	Attention
18	GND	─	Ground
19	/SEL	↔	Select
20	PARITY	↔	Data Parity
21	DB1	↔	Data Bus 1
22	DB2	↔	Data Bus 2
23	DB4	↔	Data Bus 4
24	GND	─	Ground
25	TMPWR	↔	Termination Power

Note: Direction is Device relative Bus (other Devices).