Die Datenautomatik ist ausgeschaltet.

German very often combines nouns into a single compound noun.

So Datenautomatik = Daten + Automatik.

This is extremely normal in German. English often writes similar ideas as separate words, but German usually joins them:

• Handyvertrag = mobile phone contract
• Datenschutz = data protection
• Autobahnauffahrt = motorway entrance

The last part of the compound is the main noun, and the earlier part(s) describe it.

In German compounds, the grammatical gender is determined by the last noun.

Here, the last noun is Automatik, which is feminine: die Automatik.

So the whole compound is also feminine:

• die Automatik
• die Datenautomatik

This is a very useful rule for compound nouns in German.

Daten is the plural of Datum in the sense of data.

In compounds, German often uses a noun stem or a plural-looking form as the first element. So Daten- here means something like data-related.

Compare:

• Datenschutz = data protection
• Datenvolumen = data volume
• Datenautomatik = automatic data feature/system

You do not need to analyze it as a separate plural noun inside the sentence. In the compound, Daten- just functions as the first building block.

Ausgeschaltet is the past participle of ausschalten, which means to switch off, turn off, or disable, depending on context.

Forms:

• infinitive: ausschalten
• present: ich schalte aus
• past participle: ausgeschaltet

In this sentence, ausgeschaltet describes the state of the Datenautomatik: it is switched off / turned off / disabled.

Because German often uses sein + past participle to describe a resulting state.

So:

• Die Datenautomatik ist ausgeschaltet. = The data automatic feature is in the state of being switched off.

This focuses on the current condition, not the action itself.

Compare:

• Die Datenautomatik ist ausgeschaltet.
  = It is off / disabled now.
• Die Datenautomatik wird ausgeschaltet.
  = It is being switched off.
• Jemand schaltet die Datenautomatik aus.
  = Someone switches it off.

Because ausgeschaltet is not being used directly before a noun here. It is part of the predicate after ist.

Compare:

1. Predicate use

   • Die Datenautomatik ist ausgeschaltet.
     No adjective ending.

2. Before a noun

   • die ausgeschaltete Datenautomatik
     Here you need an adjective ending because it comes before the noun.

So after sein, ausgeschaltet stays in the basic form.

It is originally a verb form: the past participle of ausschalten.

But in sentences like this, it behaves very much like an adjective describing a state.

That is why learners often think of forms like ausgeschaltet, geöffnet, geschlossen, verheiratet as somewhere between verb and adjective depending on context.

In Die Datenautomatik ist ausgeschaltet, it is best understood as a state description: is switched off / is disabled.

Because German main clauses normally follow the verb-second rule.

Here the sentence begins with the subject:

• Die Datenautomatik = position 1

Then comes the finite verb:

• ist = position 2

Then the rest:

• ausgeschaltet

So the structure is:

• Die Datenautomatik | ist | ausgeschaltet.

This is standard German word order for a simple main clause.

Yes, but the normal neutral order is:

• Die Datenautomatik ist ausgeschaltet.

Other word orders are possible for emphasis, for example:

• Ausgeschaltet ist die Datenautomatik.

But that sounds marked or stylistically special. A learner should use the standard version unless there is a reason to emphasize something.

Yes, ausschalten is a separable verb.

In a simple present-tense main clause, it splits:

• Ich schalte das Handy aus.

But in the past participle, it appears as one word:

• ausgeschaltet

So in this sentence:

• ist ausgeschaltet

That is completely normal for separable verbs.

Sometimes yes, but the nuance can change.

• ausgeschaltet = switched off, turned off
• abgeschaltet = shut off, disconnected, cut off
• deaktiviert = deactivated, disabled

In a technical or mobile-network context, ausgeschaltet sounds natural if the feature is simply off.
Deaktiviert can sound a bit more formal or technical.
Abgeschaltet can suggest something stronger, like being cut off or discontinued.

So ausgeschaltet is a very natural choice here.

Because it is a noun, and all German nouns are capitalized.

Also, since Datenautomatik is one compound noun, only the first letter of the whole compound is capitalized:

• die Datenautomatik

You do not write:

• Daten Automatik

It is one noun, so it is one word.

The main stress is usually on the first part: DA-ten-automatik.

A rough English-style guide would be:

• DAH-ten ow-toh-mah-TEEK

Some details:

• Daten has a long a
• au sounds like the ow in now
• the final -ik in Automatik is stressed as a secondary strong point

You do not need perfect pronunciation right away, but it helps to say it as one smooth compound word, not as two separate words.