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