background image

Table 1. NI PXIe-7846R Signal Descriptions (Continued)

Signal

Description

 

 

DIO

Digital input/output signal connection

DGND

Ground reference for the digital signal

EXTCLKIN

External clock input source that can be used for source synchronous
acquisitions. The provided clock source must be stable and glitch-free.

GND

Ground connection

Supply (+5 Vout) 5 V power output connection for external devices

NC

No connection

The NI PXIe-7846R is protected from overvoltage and overcurrent conditions.

Note

 

Refer to the device specifications, available at 

ni.com/manuals

 for more

information.

Connectivity Options

Use the following connection accessories and cables to access the signals on the I/O
connectors.

Table 2. Connection Accessories and Cables

Connector

Type

Accessory

Description

NI Part

Number

 

 

 

 

DIO

NI SCB-68 HSDIO

Shielded 68-Pin Connector

Block for R Series DIO and

HSDIO Products

782914-01

NI SHC68-C68-RDIO2

Shielded R Series High Speed

Digital Cable (1 m)

156166-01

Shielded R Series High Speed

Digital Cable (2 m)

156166-02

MIO

NI SCB-68A

Noise Rejecting, Shielded I/O

Connector Block

782536-01

NI SHC68-68-RMIO

RMIO Shielded Cable, 68 pin

D-Type to 68 pin VHDCI (1 m)

189588-01

RMIO Shielded Cable, 68 pin

D-Type to 68 pin VHDCI (2 m)

189588-02

NI PXIe-7846R User Manual

  | 

© National Instruments

  | 

3

Summary of Contents for PXIe-7846R

Page 1: ...e 7846R Hardware Overview The following high level block diagram represents the NI PXIe 7846R Figure 1 NI PXIe 7846R Block Diagram Device Temperature 100 MHz OSC NI ASIC Kintex 7 FPGA NI PXIe 7846R Fl...

Page 2: ...AIGND0 AI0 5V DGND DGND DGND DGND DGND DGND DGND DGND DIO8 DIO10 DIO12 DIO14 AOGND7 AOGND6 AOGND5 AOGND4 AOGND3 AOGND2 AOGND1 AOGND0 NC AI7 AIGND7 AI6 AI5 AIGND5 AI4 AI3 AIGND3 AI2 AI1 AIGND1 AI0 68 3...

Page 3: ...com manuals for more information Connectivity Options Use the following connection accessories and cables to access the signals on the I O connectors Table 2 Connection Accessories and Cables Connecto...

Page 4: ...he specified range Figure 2 Connecting Referenced Single Ended Signals to the NI PXIe 7846R PGIA ADC AI NI PXIe 7846R Connection Accessory AISENSE AIGND V1 Overvoltage Protection AI Overvoltage Protec...

Page 5: ...ion To connect floating differential signals to the NI PXIe 7846R you must connect the negative and positive signals to AI GND through 1 M resistors to keep the voltage within the common mode voltage...

Page 6: ...ectable logic levels that you can configure as 1 2 V 1 5 V 1 8 V 2 5 V or 3 3 V You can configure each channel as input or output Figure 7 Connecting to the DIO Channels NI PXIe 7846R Power FPGA Conne...

Page 7: ...shielded twisted pair wires to connect AI signals to the device With this type of wire the signal attached to the positive and negative inputs are twisted together and then covered with a shield You...

Page 8: ...he United States create your service request at ni com support or dial 1 866 ASK MYNI 275 6964 For telephone support outside the United States visit the Worldwide Offices section of ni com niglobal to...

Reviews: