Exchange 2010 - Exclude a client

Is there a way to exclude an entire client server from an Exhchange Dag backup?  We have Dag01, but the Network/Exchange admins have added a DR server to the mix at our offsite location and do not want it backed up.  Can we exclude it?  We ARE NOT using GRT.   BTW, we have not installed the NetBackup client on it, not sure if that needs to be done for the exchange agent to see an exclude, we can install if need be.

NetBackup 7.5.0.4

Master - Redhat

Media Servers - Redhat