Optional Equipment; Power Considerations For The Ni Usb-4350 - National Instruments NI 435 Series User Manual

Chapter 1 Introduction

Optional Equipment

Power Considerations for the NI USB-4350

Note When the NI USB-4350 powers off, any data acquisition in progress is aborted and
the data is lost.
Note Refer to the NI-DAQ function
documentation or to the Set DAQ Device Information (Device Setting VI) in the LabVIEW
VI, Function, & How-to Help to change the settings that determine the behavior of the
NI USB-4350 during suspend mode. The default setting is to remain fully powered.
NI 435x User Manual
NI offers a variety of products to use with the NI 435x, including cables,
connector blocks, terminal blocks, and other accessories, as follows:
• Cables and adapters with thermocouple miniconnectors
• Connector blocks including isothermal connector blocks
• Cables and cable accessories, shielded and ribbon
For more specific information about these products, refer to the NI catalog
or Web site at
ni.com
The NI USB-4350 is designed to remain powered only when the USB cable
connects it to the host PC, and the PC is powered on.
The NI USB-4350 is designed to run in a stand-alone mode, drawing power
only from the USB cable. There are circumstances when the NI USB-4350
may require more power than the USB power supply can safely deliver. If
the NI USB-4350 tries to draw more than the allowed current from the USB
power supply, internal protection circuitry turns off most of the circuitry in
the NI USB-4350 to protect the USB supply. This over-current condition
makes the LED blink in the power supply overload pattern described in
Table 1, LED Patterns for the NI USB-4350 States, of the Where to Start
with the NI 435x document.
The host computer has the ability to go into a power-saving suspend mode
and, during this time, the NI USB-4350 also can either go into a low-power
mode or remain in a fully-powered, static state. This low-power mode is
important if you are using a laptop or if power consumption is a concern.
In the powered, static state of the NI USB-4350, all digital outputs are static
at a fixed voltage.
Set_DAQ_Device_Info
or call the office nearest you.
1-8
in the Traditional NI-DAQ
ni.com