Measurement Computing USB-1608HS-2AO - Manual (Page 8)

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Chapter 1
Introducing the USB-1608HS-2AO
This user's guide contains all of the information you need to connect the USB-1608HS-2AO to your computer
and to the signals you want to measure.
The USB-1608HS-2AO is a USB 2.0 high-speed device supported under popular Microsoft ® Windows ®
operating systems. The USB-1608HS-2AO is fully compatible with both USB 1.1 and USB 2.0 ports.
The USB-1608HS-2AO features the following:
 With one A/D converter per channel, the USB-1608HS-2AO offers true simultaneous-sampling of up to
eight channels of 16-bit single-ended or differential analog input at 250 kHz per channel.
Each channel can be independently-configured with software for either single-ended or differential input.
The input range of each channel can also be configured independently with software.
 Two independent 16-bit analog output channels can be configured with a remote sensing option to
compensate for voltage drop errors that may occur at the field device.
 Eight digital input lines and eight digital output lines.
The digital output lines are driven low on power up and reset. Each digital line has an associated LED
indicator that lights for the logic 1 (high) state. You can disable all input or output LEDs with a jumper–one
jumper disables all input LEDs. A second jumper disables all output LEDs.
 A 32-bit counter capable of counting TTL pulses.
 A 5 V, 2 A, AC adapter (MCC p/n PS-5V2AEPS) powers the USB-1608HS-2AO. This adapter ships with
the device.
 A synchronization input line (SYNC_IN) allows you to provide an external sampling clock for the analog
inputs. A synchronization output line (SYNC_OUT) lets you output the internal or external sampling clock
of the USB-1608HS-2AO analog inputs.
 An analog trigger lets you start analog input conversions based on the value of a digital or analog signal.
The USB-1608HS-2AO is shown in Figure 1. I/O connections are made to the screw terminals on the device.
Figure 1. USB-1608HS-2AO