We've been working with Mac's and a 710 with an older Pactor PTC-11E (pre usb) and a Keyspan USB adaptor.

Using a Mac we run Sailmail through Parallels and have had no problem with sending and receiving with that configuration (Parallels, Pactor 2E and a Keyspan serial to USB adaptor)

Our problem is that we have just added a 'frequency control cable' to the mix. Since it's a pre USB Pactor modem the cable runs from the back of the 710 directly to the computer. That means that we now have 2 Keyspan adaptors ( one connected directly to the Pactor and a second directly to the 710 ). I am having trouble configuring the 2 USB ports on the computer to recognize both Keyspan adaptors separately.

I believe that i have configured Sailmail to recognize both pieces of equipment but can only get one Keyspan adaptor to work at a time.

Any help appreciated. Anyone with a PC using Sailmail with a non USB Pactor and a 710 that can shed some light on the Sailmail config. for 2 separate cables connected to the computer please come back also.