Linking two Digi Portservers together?

Hi, I have a serial device on two independent networks that I need to link together.
There is one server and Digi on each network - I have the virtual COM port setup on both sides.
Can I connect port 1 on Digi#1 to port 1 on Digi#2 with no special config? Using a normal lan or crossover cable?
Thanks for any advice