# Production (V1) Carrier Board Connectors

The NXP reference board design production version units have a slightly different connector set than what has tradionally been included in the standard V6X design and also the Holybro V6X-RT units.\
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The key differentiators are:\
 \- No separate IO processor required. All PWMs including redundant coming from RT1176

* Three CAN ports
* 100BaseT1 two wire ethernet
* Additional SE05x secure element on the base board in addition to the FMUMRT1176
  * NFC antenna interface to secure element
* DSM and AUX RC ports in addition to "RC IN"

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<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FEozGPWSh5C65zAwEXBoM%2Fimage.png?alt=media&#x26;token=ca541533-e84d-4957-aa0a-87ae3868a7c6" alt=""><figcaption><p>12 RC-PWM outputs are available </p></figcaption></figure>

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2Fp6uZmuV9FnayV1snv9xk%2Fimage.png?alt=media&#x26;token=9b169049-8ba9-4178-9723-d150e8b74fe2" alt=""><figcaption><p>Dual redundant power inputs. </p></figcaption></figure>

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FHWUaW95daJtaZVVsf2PR%2Fimage.png?alt=media&#x26;token=8ec919be-0b18-47a2-a7b8-fcf4439654cb" alt=""><figcaption><p>Right side view interfaces</p></figcaption></figure>

## Right side interfaces&#x20;

They include:

* AD\@I/0 Analog and GPIO
* CAN1, CAN2: Dual CAN-FD interfaces employing CAN-SIC (Signal Improvement) CAN phys.
* I2C interface
* USB-C interface and USB on JST-GH pins. (parallel pin connections not independent)<br>

![](https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FZtRnthxia4qjjNxcFxRo%2Fimage.png?alt=media\&token=aa4fdc27-0b1d-44c9-a2cc-b03354e8611d)

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FWTi87Myl7LZawmMhGbSj%2Fimage.png?alt=media&#x26;token=4a7a1d68-5e18-4a74-93b5-7cbcf99c8575" alt=""><figcaption></figcaption></figure>

## Left Side Connections

* CAN3: (extra additional ) CAN-FD interfaces employing CAN-SIC (Signal Improvement) CAN phys.
* T1-ETH: 100BaseT1 Two wire 100MBPS Ethernet&#x20;
* TELEM1/2/3: 3x Telemetry ports with Hardware handshaking
* UART\&I2C: 4th UART, no hardware handshake, I2C, NFC\_GPIO included
* Debug interface compliant to Pixhawk-DEBUG-FULL standard (aka DCD-F), including SWD and Console access.\
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  \ <br>

  <figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FzJtdTRHgdf3O8QYjlj3I%2Fimage.png?alt=media&#x26;token=8740b2b9-80b8-40c9-9afc-ce0a142f9987" alt=""><figcaption><p>Front connectors</p></figcaption></figure>

## Front side connectors

* DSM: DSM RC radio input
* NFC: NFC connection to carrier board Secure Element. (interface may be accessible even when not powered?)
* GPS1: PX4 full GPS connector including Arming Button interface, beeper, magnetometer and RGB LED&#x20;
* GPS2: Aux GPS, reduced pinout on connector.
* SPI: External SPI interface including two hardware chip selects, nSYNC, DRDY1/2 and SPI\_nRST

## PWM and SBUS IBUS RC input

![](https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FWoR3NMuXBoCvPBF8Ctkn%2Fimage.png?alt=media\&token=53bb9e98-7583-499c-84c9-6f3d1f5d529c)  ![](https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FDbRpNbkKNazMOp5UZ1Ad%2Fimage.png?alt=media\&token=82652c54-9258-40a2-ade4-a11946a9772b)

Typical connection for SBUS/IBUS  input  from RC remote controller. (note: Alternative RC interfaces possible)

## Debugger and serial console connection

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FVZpnAJYMujEq7WdsK9pT%2Fimage.png?alt=media&#x26;token=a8bb9674-4bf7-43d3-bf4c-4ea94a4172f0" alt=""><figcaption><p>Use Cognipilot Neural probe or DCD-LZ-ADAPT or similar adapter to connect a debugger or serial console to the Pixhawk-debug-full port (AKA DCD-F)</p></figcaption></figure>

Use Cognipilot Neural probe or DCD-LZ-ADAPT or similar adapter to connect a debugger or serial console to the Pixhawk-debug-full port (AKA DCD-F)\
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<https://docs.px4.io/main/en/debug/swd_debug.html>\ <br>

## Indicator LEDs

Note the legend for the LEDs is actually shown above the 4 led holes in the enclosure.

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FlMnWVHwXxO04abla3TGi%2Fimage.png?alt=media&#x26;token=8bd3c6ca-e86a-48db-9a97-5829800ef1a1" alt=""><figcaption><p>LED indicators show Ethernet connection and activity, Power supply present, and the staus of the ANALOG pin input setting. (see schematics for ASEL usage)</p></figcaption></figure>

### ASEL analog input select indicator

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FTmEDKNtfQePuAPUgqjWC%2Fimage.png?alt=media&#x26;token=1d5cd74e-1e4e-4030-b1a1-1f7389c606d9" alt=""><figcaption><p>Schematic showing alternative function. D5 = ASEL LED.<br></p></figcaption></figure>

Schematic showing alternative function. D5 = ASEL LED.\
J14 pin 7 'ADC1\_6v6\_Aux', can be selected to connect either 'ADC1\_6v6' or  Vdd Servo rail to the ADC to read the voltage. \ <br>

<figure><img src="https://2727163534-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCjtagJvJqLjd2arsEF0L%2Fuploads%2FeoO8BeBx4N1qXDekAxhF%2Fimage.png?alt=media&#x26;token=d197adb3-4238-4634-aac3-369d15981457" alt=""><figcaption><p>PWM labelling on side indicates the ground pin (Brown or Black wire) and the Signal/PWM pin (orange, white or blue)</p></figcaption></figure>