Hi,
Possible! You can use the parameter "--satip_xml" to add manually your server. Example:
TVH_ARGS=" --satip_xml http://192.168.1.36:8080/desc.xml"
However, if the server is in a routed network, you need to confirm that the RTP stream can traverse your routers. If you use NAT routers, you need to add some forwarding roules. Also, you need to remember that RTP uses UDP, that it's unreliable.
My suggestion: Install a local TVHeadend in the remote Datacenter, and one in your house. And use other protocols for streaming between both headends.