SCSI External D-Sub

25 PIN D-SUB FEMALE (at the controller)
25 PIN D-SUB MALE (at the cable)

25 PIN D-SUB FEMALE at the controller.
25 PIN D-SUB MALE at the cable.

Pin	Name	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