NI-9222 Getting Started
- Updated2023-03-27
- 2 minute(s) read
NI-9222 Getting Started
Connector Types
The NI-9222 has more than one connector type: NI-9222 with screw terminal and NI-9222 with BNC. Unless the connector type is specified, NI-9222 refers to all connector types.
NI-9222 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-9222
Pinout
Signal | Description |
---|---|
AI+ | Positive analog input signal connection |
AI- | Negative analog input signal connection |
Grounded Connections
Make sure the voltage on the AI+ and AI- connections are in the channel-to-earth safety voltage range to ensure proper operation.
Floating Connections
NI-9222 Connection Guidelines
- Make sure that devices you connect to the NI-9222 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-9222 with screw terminal.
Wiring for High-Vibration Applications
If your application is subject to high vibration, NI recommends that you follow these guidelines to protect connections to the
NI-9222 with screw
terminal:
- Use ferrules to terminate wires to the detachable connector.
- Use the NI-9971 backshell kit.
Cable Requirements for EMC Compliance
Select and install cables for the NI-9222 with screw terminal in accordance with the following requirements:
- Connect the cable shield to the chassis ground (grounding screw of the chassis) using the shortest length of wire possible.
- Use shielded, twisted-pair cables (Belden 9451 or equivalent).