quick overview :

16 Channel Data Acquisition System Description They are voltage output USB 2.0 full-speed modules. Each module provides 4, 8, or 16 voltage outputs. All modules provide synchronous and concurrent voltage updates. All Series modules provide eight digital I/O lines and one 32-bit event counter and are powered by the 5V USB supply from the computer. Analog Output All Series modules provide either 4, 8, or 16 channels of 16-bit analog output. Each channel is software-selectable for either a bipolar voltage output range of ±10 V or unipolar range of 0 to 10V. Channel outputs can be updated individually or simultaneously.