# Connecting to a ServiceExtensionAbility from the FA Model


This topic describes how the three application components of the FA model connect to the ServiceExtensionAbility component of the stage model.


## PageAbility Accessing a ServiceExtensionAbility

A PageAbility accesses a ServiceExtensionAbility in the same way as it accesses a ServiceAbility.


```ts
import featureAbility from '@ohos.ability.featureAbility';

let want = {
    bundleName: "com.ohos.stage",
    abilityName: "com.ohos.stage.ServiceExtensionAbility"
};

let faConnect = {
    onConnect:function (elementName, proxy) {
        console.info("Faconnection onConnect called.");
    },
    onDisconnect:function (elementName) {
        console.info("Faconnection onDisconnect called.");
    },
    onFailed:function (code) {
        console.info("Faconnection onFailed code is: " + code);
    }
};
let connectionId = featureAbility.connectAbility(want, faConnect);
```


## ServiceAbility or DataAbility Accessing a ServiceExtensionAbility

A ServiceAbility or DataAbility accesses a ServiceExtensionAbility in the same way as it accesses a ServiceAbility.


```ts
import particleAbility from '@ohos.ability.particleAbility';

let want = {
    bundleName: "com.ohos.stage",
    abilityName: "com.ohos.stage.ServiceExtensionAbility"
};

let faConnect = {
    onConnect:function (elementName, proxy) {
        console.info("Faconnection onConnect called.");
    },
    onDisconnect:function (elementName) {
        console.info("Faconnection onDisconnect called.");
    },
    onFailed:function (code) {
        console.info("Faconnection onFailed code is: " + code);
    }
};
let connectionId = particleAbility.connectAbility(want, faConnect);
```