Measurement Computing USB-1208FS - Manual (Page 6)

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Chapter 1
Introducing the USB-1208FS
The USB-1208FS-Plus is an analog input and digital I/O data acquisition device that provides the following
features:
 Eight analog input channels that are software-selectable for either eight 11-bit single-ended inputs or four
12-bit differential inputs
 Two 12-bit analog output channels
 16 digital I/O channels that are independently-selectable as input or output in two 8-bit ports
 32-bit event counter input for counting TTL pulses
 External digital trigger input
 Bidirectional terminal for external clocking or multi-unit synchronization
 Screw terminals for field wiring connections
The USB-1208FS is powered by the 5 volt USB supply from your computer. No external power is required.
All I/O connections are made to the device screw terminals.
USB-1208FS block diagram
USB-1208FS functions are illustrated in the block diagram shown here.
Figure 1. USB-1208FS functional block diagram