Description
The NI-9871 C Series Serial Interface Module is a robust piece of equipment designed for advanced serial communication. It comes with a variety of part numbers including 779892-01, 779892-02, and 779892-03, ensuring flexibility across different setups. This module is characterized by its 4-Port, RS485/RS422 ports, making it versatile for numerous applications.
One of the standout features of this module is its impressive maximum baud rate of 3.6864 Mbps, allowing for high-speed data transfer. Additionally, it boasts ±15 kV data line ESD protection, safeguarding the integrity of data transmission against electrostatic discharges. Furthermore, it supports a maximum cable length of 1.2 km (4,000 ft.), offering extended reach for various industrial environments.
Regarding power efficiency, the module operates at a maximum of 0.5 Watts in active mode and goes as low as 50 μWatts in standby/sleep mode. It also necessitates an external power supply of 3.5 Watts (max) from +8 to +28 VDC, ensuring reliable performance without excessive power consumption.
The module is designed with safety and durability in mind, featuring 60 VDC continuous port-to-earth ground isolation and the capability to withstand up to 1000 Vrms isolation, ensuring both the operator and device’s protection against potential electrical hazards. Its connectivity is facilitated through a four-position, female pigtail; DB-9 male front panel connector, providing easy and secure connections.
It is remarkably lightweight at just 5.4 oz., making it easy to handle and install. The module is built to operate within a temperature range of –40 to 70 °C and can be stored in temperatures ranging from –40 to 85 °C. It can withstand a humidity range of 10 to 90% RH operating and 5 to 95% RH non-condensing for storage, ensuring reliability in various environmental conditions. Lastly, it is capable of enduring vibrations of
| Specification | Detail |
|---|---|
| Part Numbers | 779892-01, 779892-02, 779892-03 |
| Module Type | NI-9871 C Series Serial Interface Module |
| 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 Mode | 0.5 Watts (max) |
| Power Consumption Standby/Sleep Mode | 50 μWatts (max) |
| External Power Supply | 3.5 Watts (max) from +8 to +28 VDC |
| Port-to-Earth Ground Isolation | 60 VDC continuous |
| Withstand Isolation | Up to 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 |
| Storage Temperature Range | –40 to 85 °C |
| Humidity Range (Operating and Storage) | 10 to 90% RH, 5 to 95% RH non-condensing |
| Vibrations (Operating) | 5 grms, 5 g (10 to 500 Hz) |
Question 1: What is the maximum baud rate of NI-9871?
Answer 1: 3.6864 Mbps
Question 2: Does NI-9871 support RS485 and RS422 interfaces?
Answer 2: Yes, it supports both.
Question 3: What is the ESD protection rating for NI-9871?
Answer 3: ±15 kV
Question 4: What is the max power consumption of NI-9871?
Answer 4: 0.5 Watts in active mode
Question 5: What is the operating temperature range for NI-9871?
Answer 5: –40 to 70 °C




