NI-9423 Specifications
- Updated2024-11-25
- 3 minute(s) read
NI-9423 Specifications
NI-9423
Nomenclature
In this article, the NI-9423 with screw terminal and NI-9423 with spring terminal are referred to inclusively as the NI-9423. The information in this document applies to all version of the NI-9423 unless otherwise specified.
Definitions
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.
Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.
- Typical specifications describe the performance met by a majority of models.
- Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
Specifications are Typical unless otherwise noted.
Conditions
Specifications are valid for the range -40 °C to 70 °C unless otherwise noted.
NI-9423 Pinout
Signal | Description |
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COM | Common reference connection to isolated ground |
DI | Digital input signal connection |
NC | No connection |
LED
Indicators
Each channel has an LED that indicates the state of the channel, as the following table describes. The LEDs are disabled when the chassis is in sleep mode.
LED Pattern | Indication |
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Solid | The channel has been programmed to be in the ON state. |
Off | The channel has been programmed to be in the OFF state. |
Input Characteristics
Number of channels | 8 digital input channels | ||||||||||||||||||
Input type | Sinking | ||||||||||||||||||
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Input delay time | 1 μs maximum | ||||||||||||||||||
MTBF | 979,623 hours at 25 °C; Bellcore Issue 2, Method I, Case 3, Limited Part Stress Method |
Safety Voltages
Connect only voltages that are within the following limits:
Channel-to-COM | 30 V maximum | ||||||||||||
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Measurement Category II
Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe.
Environmental Characteristics
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Ingress protection | IP40 | ||||||||||||
Pollution Degree | 2 | ||||||||||||
Maximum altitude | 2,000 m | ||||||||||||
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To meet these shock and vibration specifications, you must panel mount the system.
Power Requirements
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Physical Characteristics
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