NI-9202 Getting Started

NI-9202 Nomenclature

In this article, the NI-9202 with spring terminal and NI-9202 with DSUB are referred to inclusively as the NI-9202.

NI-9202 Block Diagram

Figure 1. NI-9202 Block Diagram


  • Input signals on each channel are buffered, conditioned, and then sampled by an ADC.
  • Each AI channel provides an independent signal path and ADC, enabling you to sample all channels simultaneously.

NI-9202 Pinout

Figure 2. NI-9202 Pinout


Table 1. Signal Descriptions
Signal Description
AI+ Positive analog input signal connection
AI- Negative analog input signal connection
COM Common reference connection to isolated ground
NC No connection

NI-9202 Grounded Differential Connections

Figure 3. NI-9202 Grounded Differential Connections Diagram


NI-9202 Floating Differential Connections

Figure 4. NI-9202 Floating Differential Connections Diagram


Connect the negative lead of the signal source (AI-) to COM through a 1 MΩ resistor to keep the signal source (AI±) within the maximum input voltage range. The NI-9202 does not read data accurately if the signal source (AI±) is outside of the maximum input voltage range.

NI-9202 Single-Ended Connections

Figure 5. NI-9202 Single-Ended Connections Diagram


Connect the ground signal to COM to keep the signal source (AI±) within the maximum input voltage range.

NI-9202 Differential Connections with Common Mode Voltage

Figure 6. NI-9202 Differential Connections with Common Mode Voltage Diagram


NI-9202 Connection Guidelines

  • Make sure that devices you connect to the NI-9202 are compatible with the module specifications.
  • You must use 2-wire ferrules to create a secure connection when connecting more than one wire to a single terminal on the NI-9202 with spring terminal.
  • For the NI-9202 with spring terminal, push the wire into the terminal when using a solid wire or a stranded wire with a ferrule.
  • For the NI-9202 with spring terminal, open the terminal by pressing the push button when using stranded wire without a ferrule.

High-Vibration Application Connections

If your application is subject to high vibration, NI recommends that you use the cRIO-9940 backshell kit to protect connections to the NI-9202 with spring terminal.

Conformal Coating

The NI-9202 is available with conformal coating for additional protection in corrosive and condensing environments, including environments with molds and dust.

In addition to the environmental specifications listed in the NI-9202 Safety, Environmental, and Regulatory Information, the NI-9202 with conformal coating meets the following specification for the device temperature range. To meet this specification, you must follow the appropriate setup requirements for condensing environments. Refer to Conformal Coating and NI RIO Products for more information about conformal coating and the setup requirements for condensing environments.

Operating humidity (IEC 60068-2-30 Test Db) 80 to 100% RH, condensing