NI-9202 Getting Started

• 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.

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

Connect the negative lead to COM through a 1 MΩ resistor to keep the signal source within the common-mode voltage range. The NI-9202 does not read data accurately if the signal source is outside of the common-mode voltage range.

Connect the ground signal to COM to keep the signal source within the common-mode voltage range.

• 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.

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.

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.