We confirmed this morning that EPIC currently does not have any security options for their tcp-ip connections so we would not be able to use the ssl options on our tcp-ip threads. They consider those types of interfaces behind a firewall.
HTTPS(Epic Interconnect) appears to be the only transport method with additional security available with Epic for real time hl7 message handling that is intended for transmission outside of the firewall.
We are still investigating if all of the interface types in Epic can use Interconnect.