| Number | X-pin, color | Description |
|---|---|---|
| X1958 | 12-pin, Black | Connector GPS receiver |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Navigation control module |
| 2 | E/A | Communication line data link TXD | Navigation control module |
| 3 | E/A | Communication line data link TXDN | Navigation control module |
| 4 | E/A | Communication line data link RXDN | Navigation control module |
| 5 | E/A | Communication line data link RXD | Navigation control module |
| 6 | E | Terminal R | Navigation control module |
| 7 | E | Terminal 30 | Navigation control module |
| 8 | Not used | ||
| 9 | Not used | ||
| 10 | Not used | ||
| 11 | Not used | ||
| 12 | Not used | ||