Description
The National Instruments NI-9871 C Series Serial Interface Module is a robust and versatile addition to any CompactRIO system, offering a quartet of RS485/RS422 ports and supporting a maximum baud rate of 3.6864 Mbps for efficient serial communications. This module is uniquely identified by its part numbers, specifically 779892-01, 779892-02, and 779892-03, catering to different application needs with options like conformal coating for moisture protection and included cables.
Engineered to ensure data integrity, the NI-9871 is equipped with ±15 kV data line ESD protection and allows for an extensive cable reach of up to 1.2 km (4,000 ft.), ensuring reliable long-distance connections. Its power efficiency is evident with a modest consumption of 0.5 Watts (max) during active use and a mere 50 μWatts (max) in standby or sleep mode, drawing power from an external supply ranging from +8 to +28 VDC.
The module’s design incorporates 60 VDC continuous port-to-earth ground isolation and has been rigorously tested for up to 1000 Vrms withstand isolation, providing an extra layer of safety and device longevity. Connectivity is made simple with a four-position, female pigtail, and a DB-9 male front panel connector, ensuring compatibility with a wide array of devices.
Despite its extensive capabilities, the NI-9871 maintains a lightweight profile at just 5.4 oz., and is built to perform reliably across a broad operating temperature range of –40 to 70 °C, making it suited for challenging industrial environments.
| Specification | Detail |
|---|---|
| Product | National Instruments NI-9871 C Series Serial Interface Module |
| Part Numbers | 779892-01, 779892-02, 779892-03 |
| Ports | 4-Port, RS485/RS422 |
| Maximum Baud Rate | 3.6864 Mbps |
| ESD Protection | ±15 kV data line |
| Maximum Cable Length | 1.2 km (4,000 ft.) |
| Power Consumption (Active) | 0.5 Watts (max) |
| Power Consumption (Standby/Sleep) | 50 μWatts (max) |
| Power Supply | +8 to +28 VDC external, 3.5 Watts (max) |
| Isolation | 60 VDC continuous, port-to-earth ground |
| Withstand Isolation | 1000 Vrms |
| Connector Type | Four-position, female pigtail; DB-9 male front panel connector |
| Weight | 5.4 oz. |
| Operating Temperature Range | –40 to 70 °C |
Question 1: What are the features and specifications that make the National Instruments NI-9871 C Series Serial Interface Module suitable for industrial applications in challenging environments?
Answer 1: The National Instruments NI-9871 C Series Serial Interface Module is associated with part numbers 779892-01, 779892-02, and 779892-03, each catering to different application needs; these may include options such as conformal coating for moisture protection and the inclusion of different types of cables for connectivity.
Question 2: Considering the different application needs for various environments, which specific part numbers are associated with the National Instruments NI-9871 C Series Serial Interface Module, and what additional features do these part numbers offer?
Answer 2: The National Instruments NI-9871 C Series Serial Interface Module offers features such as four RS485/RS422 ports with a maximum baud rate of 3.6864 Mbps, ±15 kV data line ESD protection, the ability to support cable lengths up to 1.2 km, and low power consumption with a maximum of 0.5 Watts during active use. For safety and longevity, it provides 60 VDC continuous port-to-earth ground isolation, 1000 Vrms
Question 3: What are the key features and protection mechanisms that contribute to the reliability and versatility of the National Instruments NI-9871 C Series Serial Interface Module in industrial environments?
Answer 3: The National Instruments NI-9871 C Series Serial Interface Module is suitable for industrial applications requiring robust long-distance serial communications due to its four RS485/RS422 ports with a maximum baud rate of 3.6864 Mbps, ±15 kV data line ESD protection, the capability to maintain reliable connections over distances up to 1.2 km, power efficiency with a maximum consumption of 0.5 Watts, 60 VDC continuous port-to-earth ground isolation, 1000 V
Question 4: What features make the National Instruments NI-9871 C Series Serial Interface Module suitable for industrial applications requiring robust long-distance serial communications?
Answer 4: The National Instruments NI-9871 C Series Serial Interface Module boasts key features such as four RS485/RS422 ports with a high maximum baud rate of 3.6864 Mbps, options for conformal coating, and included cables for varied application needs. It ensures reliability with protection mechanisms like ±15 kV data line ESD protection, extensive cable reach of up to 1.2 km for long-distance connections, 60 VDC continuous port-to-earth ground isolation, and 1000
Question 5: What are the specific features and protections offered by the National Instruments NI-9871 C Series Serial Interface Module to ensure reliability and safety in industrial environments?
Answer 5: The National Instruments NI-9871 C Series Serial Interface Module is well-suited for industrial applications in challenging environments due to its four RS485/RS422 ports, high maximum baud rate of 3.6864 Mbps for efficient serial communications, ±15 kV ESD protection, long-distance cable reach capability of up to 1.2 km, low power consumption with both active and standby modes, 60 VDC continuous port-to-earth ground isolation, 1000 Vrms withstand isolation for
