Why do you think that you need 110 ohm? Did FWB use a simple set of isolated or bussed resistors rather than a termination network? Were you able to read the part number off of an existing termination resistor pack?
If you simply took measurements on the pins of an existing termination network, I calculate that a 220/330 termination network will have a resistance of about 100 (98.5) between each of the center pins for a 10 pin network and 120 ohms between each of the center pins for an 8 pin network. Both of those are close enough to 110 ohms that you could probably get 110 ohm measurements, given the tolerances.
See page 2 of this document for the different diagrams:
http://www.bourns.com/data/global/pdfs/4300R.pdf
If you simply took measurements on the pins of an existing termination network, I calculate that a 220/330 termination network will have a resistance of about 100 (98.5) between each of the center pins for a 10 pin network and 120 ohms between each of the center pins for an 8 pin network. Both of those are close enough to 110 ohms that you could probably get 110 ohm measurements, given the tolerances.
See page 2 of this document for the different diagrams:
http://www.bourns.com/data/global/pdfs/4300R.pdf