#

The drawing shows two parallel lines measuring a length of delta z are placed horizontally between nodes. The two nodes at either end of the top wire are marked positive, while the two nodes at either end of the bottom wire are marked negative. The two parallel wires are connected by a vertical crosswire, drawn between nodes located their midpoints. The left node on the top wire is labeled N, while the middle node is labeled N plus 1. These two nodes are connected by a resistor, R-prime delta z in series with an inductor, L-prime delta z. The vertical cross-wire shows a parallel connection of a resistor, G-prime delta z and a capacitor, C-prime delta z.

The voltage across the two left nodes of the two wires is labeled v (z, t), while the voltage at the output nodes on the right is labeled v (z plus delta z, t). A rightward current, i (z, t) flows from Node N to Node N plus 1, while another rightward current, i (z plus delta z, t) flows from Node N plus 1 towards right node on top wire.