Configure Sattline for communicating through RS232 using SBSU

In sattline (v2.3) we currently communicate over sattbus. We need to upgrade the computers and can not use the internal Sattbus-cards anymore (no ISA-slots available).

I have virtualized the computers using VMware and now only have to get the sattline to reach the PLC:s which are communicating through sattbus.

I have found the SBSU sattbus to rs232 converter which sounds promising, but how does sattline know it should go throug the serial port and not the sattbus card?

Any suggestions are of great help. We are trying to keep the system running until we get a complete replacement of the control system in place.

/Mikael