Powering up a Foundation Fieldbus Transmitter

I had my first "hands on" experience with FF today. We had to calibrate several FF pressure transmitters in the calibration shop. I thought I would need two FF terminators that would be connected at either end of our temporary network to power up and establish FF communication. I asked a colleague to help us as we didn't have any terminators (I am on a HART project) and he brought a pepperl + fuchs field barrier unit. This causes me to raise two questions, the second being very specific.

(1) Was I correct in assuming that in order to power and enable FF communication, that you need two terminators in your network?

(2) Does the pepperl + fuchs field barrier unit have two terminators built in? If so this would raise another question. Why? I thought the DCS would have one terminator and the second would be in the field barrier.

Any thoughts on these would be GREATLY appreciated!