Chapter 1 Introduction; Features - Omega Engineering USB-4761 User Manual

8 channel relay/isolated di usb data acquisition module

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Chapter 1 Introduction

Thank you for buying the USB-4761 data acquisition module. The USB-

4761 is a powerful data acquisition (DAS) module for the USB port. It

features a unique circuit design and complete functions for data

acquisition and control.

USB-4761 has the most requested measurement & control functions:

• 8 relay output (Form C) and 8 isolated digital input channels

• LED indicators to show activated relays

• High-voltage isolation on input channels (2,500 VDC)

• High ESD protection (2,000 VDC)

• Wide input range (5 ~ 30 VDC)

• Interrupt handling capability

• Bus-powered

• Wiring terminal on Modules

Note:

USB-4761 User Manual

You can install up to sixteen USB-4761's to a

system because of the restriction of device

BoardID

The power output of an USB port is 500 mA,

while the USB-4761 requires 400mA (Max.). This

means that if an USB hub is used, it will need an

external power supply to support more than one

USB-4761 device.

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