Measurement Computing USB-1608FS-Plus - Manual (Page 6)

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Chapter 1
Introducing the USB-1608FS-Plus
The USB-1608FS-Plus is an analog input and digital I/O data acquisition device providing the following
features:
 Eight 16-bit single-ended (SE) analog input channels
Each input channel has a dedicated A/D converter for simultaneous sampling.
Software-selectable analog input ranges of ±10 V, ±5 V, ±2 V, and ±1 V
 Eight individually configurable digital I/O channels
 One 32-bit event counter
 One external digital trigger input
 Bidirectional external clock for synchronous operation with more than one device.
 Screw terminals for field wiring connections
The device is powered by the +5V USB supply from the computer, requiring no external power.
The USB-1608FS-Plus is compatible with both USB 1.1 and USB 2.0 ports. The speed of the device may be
limited when using a USB 1.1 port due to the difference in transfer rates on the USB 1.1 versions of the
protocol (low-speed and full-speed).
Functional block diagram
USB-1608FS-Plus functions are illustrated in the block diagram shown here.
Figure 1. Functional block diagram