Description
The product comes with part numbers 779892-01, 779892-02, and 779892-03, ensuring a range of options for specific requirements. It features a 4-Port, RS485/RS422 configuration, making it versatile for various communication needs. With a maximum baud rate of 3.6864 Mbps, it offers high-speed data transfer capabilities.
To protect against electrical surges, the device is equipped with ±15 kV ESD protection on the data line. It supports a maximum cable length of 1.2 km (4,000 ft.), allowing for extended reach across installation sites. The power consumption is highly efficient, with a maximum of 0.5 Watts (max) during active use and only 50 μWatts (max) during standby/sleep mode.
It requires an external power supply of 3.5 Watts (max) from +8 to +28 VDC, providing flexibility in power sourcing. The device offers significant isolation of 60 VDC continuous, port-to-earth ground; with a 1000 Vrms withstand capability, ensuring safety and reliability in various environments.
The connector type is a four-position, female pigtail; with a DB-9 male front panel, which facilitates easy and secure connections. Weighing in at 5.4 oz., it is a lightweight yet robust device. It is designed to operate within a temperature range of -40 to 70 °C and can be stored in temperatures ranging from -40 to 85 °C. Lastly, it is built to withstand a humidity range of 10 to 90% RH (non-condensing), making it suitable for a wide array of operating and storage conditions.
| Specification | Details |
|---|---|
| Part Numbers | 779892-01, 779892-02, 779892-03 |
| Ports | 4-Port, RS485/RS422 |
| Baud Rate (Max) | 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) |
| External Power Supply | 3.5 Watts (max) from +8 to +28 VDC |
| Isolation | 60 VDC continuous, port-to-earth ground; 1000 Vrms withstand |
| Connector | Four-position, female pigtail; DB-9 male front panel |
| 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 (non-condensing),
Question 1: How many ports does the NI-9871 have? Question 2: What is the NI-9871’s max baud rate? Question 3: What ESD protection does the NI-9871 offer? Question 4: What is the NI-9871’s operating temperature range? Question 5: How much power does the NI-9871 consume during use? |



