# Interfaces

## Interface Function Map

<figure><img src="https://752643261-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M1Ot9F_Ob2Aboz1SKNK%2Fuploads%2FNxshhNuVuktd3D040QP7%2FScreenshot%202025-07-09%20110308.png?alt=media&#x26;token=8055003f-f3aa-432a-bcb1-0b6f57ac8d18" alt=""><figcaption><p>XBLink 4G R2 - Interfaces</p></figcaption></figure>

## Connectors

<table data-header-hidden><thead><tr><th width="141">ID</th><th>Name</th><th>Connector</th><th>Description</th></tr></thead><tbody><tr><td><strong>ID</strong></td><td><strong>Name</strong></td><td><strong>Connector</strong></td><td><strong>Description</strong></td></tr><tr><td>J1</td><td>USB</td><td>USB Type-C</td><td>External Hardware (Coral AI, Payload, Microhand, Ethernet...)</td></tr><tr><td>J2</td><td>USB</td><td>USB Type-C</td><td>External Hardware (Coral AI, Payload, Microhand, Ethernet...)</td></tr><tr><td>J3</td><td>COM1/AUX</td><td>JST GH 6pin</td><td>Connect Flight controller or extend payload</td></tr><tr><td>J4</td><td>CTRL</td><td>JST GH 7pin</td><td>Sony Camera or other USB devices)</td></tr><tr><td>J5</td><td>GPS</td><td>JST GH 6pin</td><td><p>Connect to GPS, Trigger GPS and</p><p>UART 3</p></td></tr><tr><td>J6</td><td>UPGR</td><td>Micro USB</td><td>Upgrade Firmware</td></tr><tr><td>J7</td><td>ETH</td><td>JST GH 5pin</td><td>Ethernet 100 Base-T</td></tr><tr><td>J9</td><td>Power</td><td>Micro-Lock Plus 4pin</td><td>Power Input</td></tr><tr><td>J10</td><td>COM2</td><td>JST GH 4pin</td><td>Custom Winch port</td></tr></tbody></table>

## Pinout

#### COM1/AUX (J3)

| **Pin** | **Description**   |
| ------- | ----------------- |
| 1       | VBUS 5V 2A        |
| 2       | UART1\_RX (ttyS0) |
| 3       | UART1\_TX (ttyS0) |
| 4       | Pixhawk\_Trigger  |
| 5       | Hotshow\_Out      |
| 6       | GND               |

#### CTRL (J4)

<table data-header-hidden><thead><tr><th width="131.33333333333331">Pin</th><th width="287">Description</th><th></th></tr></thead><tbody><tr><td><strong>Pin</strong></td><td><strong>Description</strong></td><td><strong>Meaning</strong></td></tr><tr><td>1</td><td>VBUS 5V 2A</td><td>Power supply for Camera - 2A</td></tr><tr><td>2</td><td>Cam_Hotshoe</td><td>Control Camera</td></tr><tr><td>3</td><td>Cam_Trigger</td><td>Control Camera</td></tr><tr><td>4</td><td>Cam_PWR</td><td>Control Camera</td></tr><tr><td>5</td><td>D_N</td><td>USB D-</td></tr><tr><td>6</td><td>D_P</td><td>USB D+</td></tr><tr><td>7</td><td>GND</td><td>Ground</td></tr></tbody></table>

#### GPS (J4)

<table data-header-hidden><thead><tr><th width="163.33333333333331">Pin</th><th width="287">Description</th><th></th></tr></thead><tbody><tr><td><strong>Pin</strong></td><td><strong>Description</strong></td><td><strong>Meaning</strong></td></tr><tr><td>1</td><td>VBUS 5V 2A</td><td>Power supply for Camera - 2A</td></tr><tr><td>2</td><td>D_N</td><td>USB D-</td></tr><tr><td>3</td><td>D_P</td><td>USB D+</td></tr><tr><td>4</td><td>GPS_Trigger</td><td>For Mapping</td></tr><tr><td>5</td><td>GPS_TimePulse</td><td>For Mapping</td></tr><tr><td>6</td><td>GND</td><td>Ground</td></tr></tbody></table>

#### ETH(J4) - Ethernet 100 Base-T

| **Pin** | **Description** | **Item** |
| ------- | --------------- | -------- |
| 1       | TRD0\_P         | TX+      |
| 2       | TRD0\_N         | TX-      |
| 3       | Ground pin6     | GND      |
| 4       | TRD0\_P         | RX+      |
| 5       | TRD0\_N         | RX-      |

**Note:** An Ethernet standard that transmits at 100 Mbps.

#### Power(J8)

| **Pin** | **Description** |
| ------- | --------------- |
| 1       | GND             |
| 2       | GND             |
| 3       | 7-30V Input     |
| 4       | 7-30V Input     |

#### COM2(J10)

|         | Description         |
| ------- | ------------------- |
| **Pin** | **Description**     |
| 1       | VBUS 5V 2A          |
| 2       | UART2\_RX (ttyAMA4) |
| 3       | UART2\_TX (ttyAMA4) |
| 4       | GND                 |