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July 2025
779891-01
779891-01, C Series, RS232, 4 Ports, NI-9870 Serial Interface Module
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 779891-01 Serial interface module
The part number 779891-01 from National Instruments is the identifying part number for the NI-9870 Serial interface module. This module has four-ports that supports RS-232 communication standards. The 779891-01 module is designed to be supported by the CompactRIO platform. With the help of RS-232 standard, this module is able to perform high-speed communications over medium distances. The module has flexible baud rates of 921.6 kbps with a maximum module throughput of 1.28 Mbps and a maximum cable length of 250 pF equivalent, ensuring fast and reliable data transfer making it suitable for applications such as Data-logging.
The 779891-01is equipped with data line ESD protection with a voltage of up to 15kiloVolts (human body model) ensuring durability and reliability in demanding conditions. The module’s Mean Time Between Failures (MTBF) is 448,008 hours at 25 °C, highlighting its long-term reliability. The module features safety standards with a maximum RS232 receive signal voltage of 8 Volts continuous and a maximum 25 Volts. It also has isolation voltages of up to 60 Volts DC for port-to-earth ground and withstand voltages of 1000 V RMS up to 2000 meter altitude and 500 V RMS up to 5000 meters altitude, thus ensuring safe applications for various industrial applications.
The serial interface module is designed with an ingress protection rating IP30 and a pollution degree of 2. The 779891-01 has an operating temperature of -40 to 70 degrees celsius and a storage temperature of -40 to 85 degrees celsius, making it suitable for harsher industrial environments. This module is designed to withstand the humidity level ranging from 10% to 90% (non-condensing). This module is lightweight with a weight of 154 grams.
This module is engineered to withstand operating vibrations of 5 g RMS, 10 Hz to 500 Hz and operating shock of 30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations. This serial interface module consumes a maximum of 0.5 Watts in active mode and 50 µW maximum in sleep mode. It requires an external supply voltage range of +8 to +28 V DCwith a typical power consumption of 0.5 Watts.
| Model | 779891-01 |
|---|---|
| Part Number | 779891-01 |
| Model Name | NI-9870 |
| Part Type | Serial Interface Module |
| Maximum Baud Rate | 921.6 kbps |
| Data Line ESD Protection | ±15 kV |
| Maximum Cable Length | 250 pF equivalent |
| Power Consumption (Active mode) | 0.5 W max |
| Power Consumption (Sleep mode) | 50 µW max |
| Operating Temperature | -40 °C to 70 °C |
| Weight | 154 g |
Associated part numbers for 779891-01:
779891-01 PDF Manuals
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