The key things to do is to "forward" or "map" the port 9080 to the XServer which in your case the IP address is 192.168.200.27". This you have to do it at your router.
We are not familiar with SMC, but in Linksys and DLink that we tried, you typically do a Port Forwarding configuration in the "Application" link. Once you have configured it you should be able to login to XServer from TRiLOGI using the public IP address.
This has also been described in details in the TRiLOGI programmer's reference guide.