Lemo connector
This is a 7-pin 0-shell Lemo connector.
                                                                 
                                                            
| Pin | Usage | 
|---|---|
| 1 | RS-232 signal GND | 
| 2 | GND | 
| 3 | RS-232 serial data out | 
| 4 | CAN- | 
| 5 | CAN+ | 
| 6 | DC power In | 
| 7 | RS-232 serial data in |