Description
The NI-9871 is a high-performance module designed for versatile applications. It is identified by part numbers 779892-01, 779892-02, and 779892-03. This module features an RS485/RS422 interface type, making it suitable for a broad range of industrial communications.
It is equipped with 4 ports, allowing multiple devices to be connected simultaneously. The NI-9871 supports a maximum baud rate of 3.6864 Mbps, ensuring high-speed data transmission. Additionally, it offers data line ESD protection of ±15 kV, safeguarding the device against electrostatic discharge damage.
The module can support a maximum cable length of 1.2 km (4,000 ft.), providing flexibility in device placement and network configuration. In terms of power, it has a low consumption rate of 0.5 Watts (max) in active mode and 50 µWatts (max) in standby/sleep mode. An external power supply of 3.5 Watts (max) from +8 to +28 VDC is also supported for enhanced power management.
For safety and durability, the NI-9871 features port-to-earth ground isolation of 60 VDC continuous and can withstand isolation of 1000 Vrms. The device utilizes a 4-position, female pigtail; DB-9 male front panel connector, ensuring easy and secure connections. With a weight of 5.4 oz., it is lightweight yet robust for industrial applications.
| Specification | Detail |
|---|---|
| Product Model | NI-9871 |
| Part Numbers | 779892-01, 779892-02, 779892-03 |
| Interface Type | RS485/RS422 |
| Number of Ports | 4 |
| Maximum Baud Rate | 3.6864 Mbps |
| Data Line ESD Protection | ±15 kV |
| 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 | 1000 Vrms |
| Connector Type | 4-position, female pigtail; DB-9 male front panel connector |
| Weight | 5.4 oz. |
| Operating Temperature Range |
Question 1: What is the max baud rate of the NI-9871? Question 2: What type of ESD protection does NI-9871 offer? Question 3: How many ports does the NI-9871 have? Question 4: What’s the max cable length supported by NI-9871? Question 5: What is the power consumption of NI-9871 in active mode? |
