Introducing the usb-2404-10, Overview: usb-2404-10 features, Usb-2404-10 block diagram – Measurement Computing USB-2404-10 User Manual
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Chapter 1
Introducing the USB-2404-10
Overview: USB-2404-10 features
This user's guide contains all of the information you need to connect the USB-2404-10 to your computer and to
the signals you want to measure.
The USB-2404-10 is a USB 2.0 high-speed device that is supported under popular Microsoft
®
Windows
®
operating systems. The USB-2404-10 is fully compatible with both USB 1.1 and USB 2.0 ports.
The USB-2404-10 provides four channels of 24-bit simultaneous analog inputs.
The maximum sampling rate is 50 kS/s per channel, and the input voltage range is ±10 V, nominal.
An anti-alias filter removes noise that may be present in the signals prior to conversion. A 250 Vrms channel-
to-channel and channel-to-ground isolation protects the device and computer from ground spikes, and ensures a
reliable data stream. An on-board LED indicates the status of the device.
Field connections are made to four 2-position detachable screw terminals. Ten additional two-position
connectors are available with the optional ACC-102 connector kit.
The USB 2.0 high-speed driver transfers data at rates up to 480 Mbps. The USB-2404-10 is powered by the
+5 volt USB supply from your computer. No external power is required.
USB-2404-10 block diagram
USB-2404-10 functions are illustrated in the block diagram shown here.
Figure 1. USB-2404-10 functional block diagram
USB
Microcontroller
USB
Hi-Speed
USB 2.0
Compliant
Interface
USB
CH0+
0-
CH
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolation barrier
CH1+
1-
CH
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolation barrier
CH2+
2-
CH
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolation barrier
CH3+
3-
CH
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter
Isolated
ADC
Amplifier
Overvoltage
Protection
+
-
Prefilter