| Number | X-pin, colour | Description |
|---|---|---|
| X3442 | 10-pin, Black | Plug connector RTK-6 operating unit |
| X3443 | 1-pin, Black | Plug connector RTK-6 operating unit |
| X3444 | 5-pin, Black | Plug connector RTK-6 operating unit |
| X3445 | 15-pin, Black | Plug connector RTK-6 operating unit |
| X3446 | 15-pin, Black | Plug connector RTK-6 operating unit |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Voltage supply terminal 30 | Fuse F64 |
| 2 | M | Ground | Ground point |
| 3 | Not used | ||
| 4 | A | Signal, terminal 84 | Connector, terminal 84 |
| 5 | Not used | ||
| 6 | E | Voltage supply terminal R | Fuse, officials F04 |
| 7 | Not used | ||
| 8 | A | Horn signal | Horn connector X10061 |
| 9 | E | Voltage supply terminal R | Fuse, officials F04 |
| 10 | A | Signal, tone sequence | Connector, tone sequence |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Signal, operating unit | All-round sound combination RTK-6 |
| 2 | E | Signal, operating unit | All-round sound combination RTK-6 |
| 3 | E | Signal, operating unit | All-round sound combination RTK-6 |
| 4 | E | Signal, operating unit | All-round sound combination RTK-6 |
| 5 | M | Shield | Radio shield |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Shield | Radio shield |
| 2 | Not used | ||
| 3 | Not used | ||
| 4 | A | Signal, radio | Connection, radio set |
| 5 | A | Signal, radio | Connection, radio set |
| 6 | A | Signal, radio | Connection, radio set |
| 7 | M | Ground | RTK-6 operating unit |
| 8 | Not used | ||
| 9 | A | Signal, radio | Connection, radio set |
| 10 | A | Signal, radio | Connection, radio set |
| 11 | Not used | ||
| 12 | A | Signal, radio | Connection, radio set |
| 13 | A | Signal, radio | Connection, radio set |
| 14 | Not used | ||
| 15 | M | Ground | RTK-6 operating unit |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| 2 | Not used | ||
| 3 | Not used | ||
| 4 | A | Signal, radio | Connection, handheld telephone |
| 5 | A | Signal, radio | Connection, handheld telephone |
| 6 | A | Signal, radio | Connection, handheld telephone |
| 7 | A | Signal, microphone | Connector, sub D (31) |
| 8 | A | Signal, microphone | Connector, sub D (31) |
| 9 | A | Signal, radio | Connection, handheld telephone |
| 10 | Not used | ||
| 11 | Not used | ||
| 12 | A | Signal, radio | Connection, handheld telephone |
| 13 | A | Signal, radio | Connection, handheld telephone |
| 14 | Not used | ||
| 15 | M | Ground | Connector, sub D (31) |