In terms of connecting one whole fence section to another (as in bought sections, not resected cuts) each fencing "bundle" comes with an extended connector wire that sticks out. It has special clips. Those clips can connect to your charger connections, or...as the directionsI've done the equine electric fences, which is why the smaller scale and multiple, linked lines of the poultry netting confuse me.
say- when connecting bundles, use the extended wire to hook up to the next section.
It that way it's just like Christmas tree lights.
If you are closing off a section, like making a giant circle, the end piece and the beginning piece do not need to touch. The fence in and of itself is a complete circuit. In that regard it is not like horse fence.
You can run your fence in a complete straight line and it will just as hot at the end as it is at the beginning (where the current comes from)