Description
The device comes with part numbers 779892-01, 779892-02, 779892-03, designed to cater to a variety of needs. It features a 4-Port, RS485/RS422 interface, making it highly versatile for various communication requirements. With a maximum baud rate of 3.6864 Mbps, this device ensures rapid data transmission.
To safeguard against potential damage, it is equipped with ±15 kV ESD protection on the data line. The device supports a maximum cable length of 1.2 km (4,000 ft.), allowing for extensive reach across large setups. When it comes to power efficiency, the device demonstrates exceptional performance with a maximum active power consumption of 0.5 Watts and a standby/sleep power consumption of 50 μWatts.
It requires an external power supply of 3.5 Watts (max) from +8 to +28 VDC, ensuring flexibility in power sourcing. Safety is further enhanced through 60 VDC continuous isolation from port-to-earth ground and the ability to withstand isolation up to 1000 Vrms, providing an extra layer of protection against electrical shocks.
The device includes a four-position, female pigtail; DB-9 male front panel connector, offering convenient and versatile connectivity options. Weighing in at 5.4 oz., it is lightweight yet robust. It operates within a temperature range of –40 to 70 °C and can be stored in temperatures ranging from –40 to 85 °C, ensuring reliability in various environmental conditions.
| Specification | Detail |
|---|---|
| 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) |
| External Power Supply | 3.5 Watts (max) from +8 to +28 VDC |
| Isolation | 60 VDC continuous, port-to-earth ground |
| Withstand Isolation | 1000 Vrms |
| Connector | 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 |
| Question 1: What is the max baud rate of the NI-9871? Answer 1: 3.6864 Mbps Question 2: How much ESD protection does the NI-9871 offer? Question 3: What is the max cable length supported by NI-9871? Question 4: What power supply does the NI-9871 require? Question 5: What is the operating temperature range of the NI-9871? |




