| Number | X-pin, color | Description |
|---|---|---|
| X10525 | 26-pin, gray | Component connector Transceiver, telephone |
| X547 | 12-pin, natural | Component connector Transceiver, telephone |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Signal, data IN | Telephone drawer |
| 2 | A | Signal, supply ON | Telephone drawer |
| 3 | M | Shielding | Telephone drawer |
| 4 | E | Telephone ON signal | Telephone drawer |
| 5 | Not occupied | ||
| 6 | Not occupied | ||
| 7 | Not occupied | ||
| 8 | Not occupied | ||
| 9 | Not occupied | ||
| 10 | Not occupied | ||
| 11 | Not occupied | ||
| 12 | Not occupied | ||
| 13 | E | Supply, terminal 30 | Fuse F79 |
| 14 | E | Reset signal | Telephone drawer |
| 15 | A | Signal, data OUT | Telephone drawer |
| 16 | E | Signal, SIM card | Telephone drawer |
| 17 | A/E | Signal, CAN-bus | Phoneboard |
| 18 | A/E | Signal, CAN-bus | Phoneboard |
| 19 | Not occupied | ||
| 20 | Not occupied | ||
| 21 | Not occupied | ||
| 22 | Not occupied | ||
| 23 | Not occupied | ||
| 24 | Not occupied | ||
| 25 | Not occupied | ||
| 26 | M | Ground | Ground point |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Shielding | Microphone |
| 2 | Not occupied | ||
| 3 | Not occupied | ||
| 4 | Not occupied | ||
| 5 | Not occupied | ||
| 6 | Not occupied | ||
| 7 | E | Signal, microphone | Microphone |
| 8 | E | Signal, microphone | Microphone |
| 9 | Not occupied | ||
| 10 | Not occupied | ||
| 11 | Not occupied | ||
| 12 | Not occupied | ||