This model represents a DC current distribution system, whose complexity depends on two parameters N and M. A voltage source is connected to primary resistive distribution line which is split into N segments, each with a resistance R_d1. At the end of each segment, a secondary distribution line is attached with M elements each of resistance R_d2. At the end of each secondary segment, a load resistor of resistance R_l is connected, which is grounded on the other side.