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What is a LabJack?

 

LabJacks are USB/Ethernet/WiFi based measurement and automation devices which provide analog inputs/outputs, digital inputs/outputs, and more. LabJacks provide an easy to use interface between computers and the physical world.

LabJack USB/Ethernet/Wireless 802.11b/g DAQ Devices

LabJack U3 USB Digital and Analog Input Output Device
LabJack U6 USB Digital and Analog Input Output Device
LabJack UE9 USB Ethernet Digital and Analog Input Output Device
LabJack T7 USB Ethernet Wireless 802.11b/g WiFi Digital and Analog Input Output Device
LabJack U12 USB Digital and Analog Input Output Device

2 comments

" . . .which provide analog inputs/outputs . . ."

The question is so fundamental you thought it was understood.

Provides I/O to what?

Do these devices only communicate with computers running monitor/control software? Or can they exchange data among themselves without computer supervision?

Can I plug one of these devices to my ethernet jack in room A and another to my ethernet jack in room B? And have unit B respond to the stimulus from room A? And vice versa?

They provide a link between the real world and software running on some host computer.  The U12/U3/U6/UE9 cannot do what you describe by themselves, as without software on a computer somewhere they do very little.

A way to do what you describe would be to take a Linux SBC such as the TS-7500 and connect it to a U3.  This gives you a networkable and programmable Linux computer with real-world I/O.