Features The Model 7012 is a low voltage, two-pole, quad, 1 x 10 multiplexer card. Some of the key features include: Low contact potential and offset current for minimal effects on low-level signals. The connector board detaches from the relay board allowing easy access to the screw terminals (Model 7012-S) and jumpers. Easy jumper configuration of one, two, three or four multiplexer banks. Backplane jumpers. Cutting jumpers disconnects multiplexer bank outputs from the Model 7001 analog backplane.