
Chapter 6. Connector pin-outs
6.1 Ethernet port
This is a standard 6-pin military-specification bayonet plug, conforming to MIL-DTL-26482 (formerly MIL-C-26482). A typical part-number is 02E-10-06P although the initial “02E” varies with manufacturer. Suitable mating connectors have part-numbers like ***-10-06S and are available from Amphenol, ITT Cannon and other manufacturers. |
Pin | Function |
A | not connected |
B | Data transmit +ve (8P8C pin 1) |
C | Data receive +ve (8P8C pin 3) |
D | Data receive –ve (8P8C pin 6) |
E | Data transmit –ve (8P8C pin 2) |
F | not connected |
Wiring details for the compatible socket, ***-10-06S, as seen from the cable end (i.e. when assembling). |
6.2 RS232 port
This is a standard DE9F (TIA-574) sub-miniature (D-sub) chassis socket, conforming to DIN 41652 and MIL-DTL-24308. They are very widely available, as are suitable mating connectors. |
The pin-out is reversed relative to the standard, allowing you to connect a straight-through serial cable between the connector and a standard RS232 serial port.
Pin | Function |
1 | not connected |
2 | RS232 transmitted data |
3 | RS232 received data |
4 | not connected |
5 | Ground |
6 | not connected |
7 | not connected |
8 | not connected |
9 | not connected |
Wiring details for the compatible plug, DE9M, as seen from the cable end (i.e. during assembly). |
6.3 RS422 port
This is a standard DE9F (TIA-574) sub-miniature (D-sub) chassis socket, conforming to DIN 41652 and MIL-DTL-24308. They are very widely available, as are suitable mating connectors. |
The pin-out is reversed relative to the standard, allowing you to connect a straight-through serial cable between the connector and a standard RS422 serial port.
Pin | Function |
1 | Ground |
2 | not connected |
3 | not connected |
4 | +TxD – Data transmit +ve |
5 | -TxD – Data transmit -ve |
6 | not connected |
7 | not connected |
8 | +RxD – Data receive +ve |
9 | -RxD – Data receive -ve |
Wiring details for the compatible plug, DE9M, as seen from the cable end (i.e. during assembly). |
6.4 DATA IN port
Thes is a standard 10-pin military-specification bayonet socket, conforming to MIL-DTL-26482 (formerly MIL-C-26482). A typical part-number is 02E-12-10S although the initial “02E” varies with manufacturer. Suitable mating connectors have part-numbers like ***-12-10P and are available from Amphenol, ITT Cannon and other manufacturers. |
Pin | Function |
A | Power 0V |
B | Power +ve input – 10 to 35 Volts, DC |
C | RS232 CTS / RS422 Transmit -ve |
D | RS232 RTS / RS422 receive -ve |
E | not connected |
F | not connected |
G | RS232 ground |
H | not connected |
J | RS232 receive / RS422 receive +ve |
K | RS232 transmit / RS422 transmit +ve |
Wiring details for the compatible plug, ***-12-10P, as seen from the cable end (i.e. when assembling). |
6.5 Auxiliary port
This is a standard DE9M (TIA-574) sub-miniature (D-sub) chassis plug, conforming to DIN 41652 and MIL-DTL-24308. They are very widely available, as are suitable mating connectors. |
The pin-out is reversed relative to the standard, allowing you to connect a straight-through serial cable between the connector and a standard RS232 serial port.
Pin | Function |
1 | not connected |
2 | RS232 transmitted data |
3 | RS232 received data |
4 | not connected |
5 | Ground |
6 | not connected |
7 | not connected |
8 | not connected |
9 | not connected |
Wiring details for the compatible socket, DE9F, as seen from the cable end (i.e. during assembly). |