Figure 4From: Development of a multi-electrode array for spinal cord epidural stimulation to facilitate stepping and standing after a complete spinal cord injury in adult ratsSchematic of the multiplexer circuit board. Multiplexer circuit schematic. The 9 lines on the left along with the 3 power lines (12Â V, 5Â V, and Gnd, not shown) represent the 12 control lines used to interface the array and EMG wires with the external electronics. Black tags represent the spinal cord electrodes and EMG wire pairs.Back to article page