@digitalpersona/devices/dist/api/docs/devices.cardsreader.oncommunicationfailed.md

DigitalPersona Security Devices support library

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[Home](./index.md) &gt; [@digitalpersona/devices](./devices.md) &gt; [CardsReader](./devices.cardsreader.md) &gt; [onCommunicationFailed](./devices.cardsreader.oncommunicationfailed.md)

## CardsReader.onCommunicationFailed property

An event handler for the [CommunicationFailed](./devices.communicationfailed.md) event. This is a unicast subscription, i.e. only one handler can be registered at once.

<b>Signature:</b>

```typescript
onCommunicationFailed: Handler<CommunicationFailed>;
```