Exchange 2013 Administration

Dear All,

I am having below scenario in my company,

1) abc.local (Parent Domain) in Site A.

2) SiteA.abc.local (Child Domain) in Site A.

3) SiteB.abc.local (Child Domain) in Site B.

In (Site A) we are using Exchange 2007 Sp3 responsible to receive emails for abc.com domain.

In (Site B) we are using Exchange 2010 Sp3 with Exchange 2013 Sp1 in a coexistence scenario responsible to receive emails for abc.ae domain.

Now what we are trying to achieve is to configure Exchange servers in Site B in a way that administrator in Site B can not modify any configuration related to Site A and Global configuration but can modify every settings for Exchange in Site B.

Basically we are looking for Split permissions can anyone please let me know how can we achieve this.

Your help will be highly appreciated.

Thanks & Regards,

ZB