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# AWS::IoTFleetWise::SignalCatalog Node
<a name="aws-properties-iotfleetwise-signalcatalog-node"></a>

A general abstraction of a signal. A node can be specified as an actuator, attribute, branch, or sensor.

## Syntax
<a name="aws-properties-iotfleetwise-signalcatalog-node-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-iotfleetwise-signalcatalog-node-syntax.json"></a>

```
{
  "[Actuator](#cfn-iotfleetwise-signalcatalog-node-actuator)" : Actuator,
  "[Attribute](#cfn-iotfleetwise-signalcatalog-node-attribute)" : Attribute,
  "[Branch](#cfn-iotfleetwise-signalcatalog-node-branch)" : Branch,
  "[Sensor](#cfn-iotfleetwise-signalcatalog-node-sensor)" : Sensor
}
```

### YAML
<a name="aws-properties-iotfleetwise-signalcatalog-node-syntax.yaml"></a>

```
  [Actuator](#cfn-iotfleetwise-signalcatalog-node-actuator): 
    Actuator
  [Attribute](#cfn-iotfleetwise-signalcatalog-node-attribute): 
    Attribute
  [Branch](#cfn-iotfleetwise-signalcatalog-node-branch): 
    Branch
  [Sensor](#cfn-iotfleetwise-signalcatalog-node-sensor): 
    Sensor
```

## Properties
<a name="aws-properties-iotfleetwise-signalcatalog-node-properties"></a>

`Actuator`  <a name="cfn-iotfleetwise-signalcatalog-node-actuator"></a>
 Information about a node specified as an actuator.  
An actuator is a digital representation of a vehicle device.
*Required*: No  
*Type*: [Actuator](aws-properties-iotfleetwise-signalcatalog-actuator.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Attribute`  <a name="cfn-iotfleetwise-signalcatalog-node-attribute"></a>
 Information about a node specified as an attribute.  
An attribute represents static information about a vehicle.
*Required*: No  
*Type*: [Attribute](aws-properties-iotfleetwise-signalcatalog-attribute.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Branch`  <a name="cfn-iotfleetwise-signalcatalog-node-branch"></a>
 Information about a node specified as a branch.  
A group of signals that are defined in a hierarchical structure.
*Required*: No  
*Type*: [Branch](aws-properties-iotfleetwise-signalcatalog-branch.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Sensor`  <a name="cfn-iotfleetwise-signalcatalog-node-sensor"></a>
 An input component that reports the environmental condition of a vehicle.  
You can collect data about fluid levels, temperatures, vibrations, or battery voltage from sensors.
*Required*: No  
*Type*: [Sensor](aws-properties-iotfleetwise-signalcatalog-sensor.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)