If they are Bactalk controllers then they are Bacnet and will pull right into the Jace, if you have the Bacnet MS/TP Driver. When you discover the points, you will notice that they pull in as the AV or BV as SysControl stated, Unless someone has done their job and added descriptions to the points. They probably did not.
If this project is Ibex controllers, but has a BCM_Eth, and BCM_Tux added, you can also pull these into the Jace via BacnetIP.
I can probably help you with the points list if you need assistance. Most use the Alerton files for common units and the points are all the same. Let me know if i can be of assistance.