| Pin | Pin Name |
Description |
| 1 | GND (black) | Ground signal for power and data |
| 2 | VCC +5V (red) | Power supply voltage to GPS +5V |
| 3 | Data TTL Rx (blue) | Data to GPS, TTL levels |
| 4 | Data RS-232 RX (white) | Data to GPS, RS-232 levels |
| 5 | Data RS-232 TX (green) | Data from GPS, RS-232 levels |
| 6 | Data TTL TX (yellow) | Data from GPS, TTL levels |
Please note that numbering in some official sources is different!
NaviLock GPS cable pinout, 4800bps, no parity, no flow control
For Navilock NL-303p: pin 6 = nc, pin 3 = shield

