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# HummingBoard CBi RS485 and CANBus pin mapping

#### Introduction

The following sections describes the pin mapping of the HummingBoard CBi RS485 and CANBus interfaces.

In both those two interfaces Phoenix Contact part number 1757255 connector is being used.

#### RS485

The pin mapping on the HummingBoard CBi RS485 connector is as follows;

![Pasted-into-HummingBoard-CBi-RS485-pin-mapping.png](/files/zZScqbphYQmRWQWlCQGS)

#### CANBus interface

![Pasted-into-HummingBoard-CBi-RS485-and-CANBus-pin-mapping.png](/files/gOzhI7N5WS4YERD7jopF)

{% hint style="info" %}
**More information** For more information please reference the board schematics [HummingBoard CBi Quick Start Guide](/nxp/imx6/sbc-platform/hummingboard-imx6-sbc-quick-start-guide/hummingboard-cbi-quick-start-guide.md) .
{% endhint %}


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