Afarai 7 SP5 fresh install iOS things

Hi,

I Have Afaria 7 SPF5 farm. I built it for android. But now we have to Manage iOS devices too.

Here is my brief:

I have Active Directory

I have Enterprise Subordinate CA which NDES role installed

I have two Afaria Server (Master and Slave) member of Active directory

I have two Relay Server on DMZ and not member of Active Directory

Now question:

My iOS clients dont interact with Active directory such as username or password. So , Can I install CA on my Master Afaria server? But nos as "Enterprise", can i install this CA as "Standalone" ?