I have customer that wants to put a PRI into their FX. I have never installed one... I've worked on them in the past, but never from scratch.

Anything major I should look for? I will probably have to pull the CO card to make room. So I'm not sure how long the downtime will be.

Depends on the cards in the system. You may need a synch chip, or a clock that mounts on an interface board plus the PRI board. I have all available and can help with the install if needed. You can PM me for more info.