Seriously newbie ignorant question. If that offends you, read no further.
I'm asking for help in verifying that my basic grasp of 66/110 blocks is corrrect.
A 66 block has metal contacts arranged in 4 columns. The outer pairs of columns are connected across. To connect ("terminate" just doesn't set off the right thoughts in my brain) wires you punch them down on the outer columns. To connect wires in the block horizontally you use small metal clips on the inner columns. To connect them vertically you punch down jumper wires right on top of the original wires.
A 110 block is just a piece of plastic with grooves/receptacles for clips, in two columns or rows. You attach/make ready wires by punching them down into the block. To make electrical contact to the wires available you punch down clips on top of the wires, either with a special tool or with multiple impacts of the simple punchdown tool you used originally. To make any connections between wires in the block, horizontal or vertical, you punch down jumpers on top of the clips.
Thanks for the help.