NI-9411 Specifications

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. All voltages are relative to COM unless otherwise noted.

NI 9411 Pinout



Table 1. DSUB Connector Signal Descriptions
Signal Description
COM Common reference connection to isolated ground
DIa and DIb Digital input signal connections
Supply (+5 Vout) 5 V power output connection for external devices
Table 2. Screw-Terminal Connector Signal Descriptions
Signal Description
COM Common reference connection to isolated ground
Vsup Voltage supply connection

Input Characteristics

Number of channels

6 digital input channels

Input type

Differential or single-ended

Digital logic levels
Differential (DIa and DIb)

Input high range

300 mV to 24 V

Input low range

-300 mV to -24 V

Common-mode voltage

-7 V to 12 V

Single-ended

Input high range

2 V to 24 V

Input low range

0 V to 0.8 V

Input current

At 5 V

±1 mA per channel

At 24 V

±4 mA per channel

Input impedance

8.4 kΩ

I/O protection

Input voltage (channel-to-COM)

30 V maximum

Input current

±4 mA, internally limited

Input delay time

500 ns maximum

MTBF

800,319 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method

Power Requirements

Power consumption from chassis

Active mode

340 mW maximum

Sleep mode

1.1 mW maximum

Thermal dissipation (at 70 °C)

Active mode

1.4 W maximum

Sleep mode

1.1 W maximum

Physical Characteristics

Dimensions

Visit ni.com/dimensions and search by module number.

Screw-terminal wiring

Gauge

0.05 mm2 to 1.5 mm2 (30 AWG to 14 AWG) copper conductor wire

Wire strip length

6 mm (0.24 in.) of insulation stripped from the end

Temperature rating

90 °C minimum

Torque for screw terminals

0.22 N · m to 0.25 N · M (1.95 lb · in. to 2.21 lb · in.)

Wires per screw terminal

One wire per screw terminal; two wires per screw terminal using a 2-wire ferrule

Ferrules

0.25 mm2 to 1.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

Weight

136 g (4.8 oz)

Safety Voltages

Connect only voltages that are within the following limits.

Channel-to-COM or Vsup-to-COM

30 V maximum, Measurement Category I

Isolation

Channel-to-channel

None

Channel-to-earth ground

Continuous

30 V RMS, 42.4 Vpk, 60 V DC

Withstand

400 V RMS, verified by a 5 s dielectric withstand test

Measurement Category I

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

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.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Environmental Characteristics

Temperature

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Ingress protection

IP40

Pollution Degree

2

Maximum altitude

2,000 m

Shock and Vibration
Operating vibration

Random

5 g RMS, 10 Hz to 500 Hz

Sinusoidal

5 g, 10 Hz to 500 Hz

Operating shock

30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations

To meet these shock and vibration specifications, you must panel mount the system.