NI-9476 and sbRIO-9476 Specifications
- Updated2024-11-25
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NI-9476 and sbRIO-9476 Specifications
NI-9476
Nomenclature
In this article, the NI-9476 with spring terminal and NI-9476 with DSUB are referred to inclusively as the NI-9476. The information in this document applies to all versions of the NI-9476 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-9476 Pinout
Signal | Description |
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COM | Common reference connection |
DO | Digital output signal connection |
Vsup | Voltage supply input connection |
Output Characteristics
Number of channels | 32 digital output channels | ||||||
Output type | Sourcing | ||||||
Output Voltage | Vsup - (I0 * R0) | ||||||
Power-on output state | Channels off | ||||||
External power supply voltage range (Vsup-to-COM) | 6 V DC to 36 V DC | ||||||
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Output impedance (R0) | 0.3 Ω maximum | ||||||
Continuous overvoltage protection (Vsup) | up to 40 V maximum | ||||||
Reversed-voltage protection | None | ||||||
Current limiting | None | ||||||
Short-circuit protection | Indefinitely protected when a channel is shorted to COM or to a voltage up to Vsup | ||||||
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Vsup current consumption | 28 mA maximum | ||||||
Maximum update rate | 40 μs maximum | ||||||
Propagation delay | 500 μs maximum | ||||||
MTBF | 1,091,425 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method |
NI-9476 with Spring Terminal Safety Voltages
Connect only voltages that are within the following limits.
Vsup-to-COM | 40 V DC maximum | ||||||||||||
DO | VCOM ≤ VDO ≤ Vsup | ||||||||||||
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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.
NI-9476 with DSUB Safety Voltages
Connect only voltages that are within the following limits.
Vsup-to-COM | 40 V DC maximum | ||||||||||||
DO | VCOM ≤ VDO ≤ Vsup | ||||||||||||
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Measurement Category I
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.
Environmental Characteristics
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Ingress protection | IP40 | ||||||||||||
Pollution Degree | 2 | ||||||||||||
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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
If you need to clean the module, wipe it with a dry towel.
Dimensions | Visit ni.com/dimensions and search by module number. | ||||||||||||
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