Get wired!  

pinout (распиновка)

SCSI Internal (Single-ended) connector

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SCSI=Small Computer System Interface. Based on an original design by Shugart Associates. SCSI was ratified in 1986.


50 pin IDC MALE connector  at the controller & harddisk
Pin Name Dir Description
2 DB0 <-> Data Bus 0
4 DB1 <-> Data Bus 1
6 DB2 <-> Data Bus 2
8 DB3 <-> Data Bus 3
10 DB4 <-> Data Bus 4
12 DB5 <-> Data Bus 5
14 DB6 <-> Data Bus 6
16 DB7 <-> Data Bus 7
18 PARITY <-> Data Parity (odd Parity)
20 GND --- Ground
22 GND --- Ground
24 GND --- Ground
26 TMPWR <-> Termination Power
28 GND --- Ground
30 GND --- Ground
32 /ATN <-- Attention
34 GND --- Ground
36 /BSY <-> Busy
38 /ACK <-- Acknowledge
40 /RST <-> Reset
42 /MSG --> Message
44 /SEL <-> Select
46 /C/D --> Control/Data
48 /REQ --> Request
50 /I/O --> Input/Output

50 pin IDC FEMALE connector  at the cable

Note: Direction is Device relative Bus (other Devices).
All odd-numbered pins, except pin 25, are connected to ground. Pin 25 is left open.

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