Description
The Part Number 779892-03 refers to an Industrial Communication Interface device, specifically the NI-9871 model. This device is a 4 Port RS 485/422 Serial Module that comes with a Conformal Coating for extra protection. It is designed to support 4-Port configurations for RS485/RS422 communication protocols. With a Maximum Baud Rate of 3.6864 Mbps, it ensures rapid data transmission rates for industrial applications.
This module is equipped with ±15 kV ESD Protection on data lines, offering robust protection against electrostatic discharge. It supports a Maximum Cable Length of up to 1.2 km (4,000 ft.), enabling extended reach within industrial environments. Regarding power, it has a Power Consumption (Active) of 0.5 Watts (max) and a Power Consumption (Standby/Sleep) of 50 µWatts (max). Additionally, it requires an External Power Supply of 3.5 Watts (max) from +8 to +28 VDC.
The module offers Isolation of 60 VDC continuous, port-to-earth ground, and can Withstand Isolation up to 1000 Vrms, ensuring safety and reliability in challenging industrial settings. The Connector Type includes a Four-position, female pigtail; DB-9 male front panel connector, providing versatile connection options.
| Specification | Detail |
|---|---|
| Part Number | 779892-03 |
| Category | Industrial Communication Interfaces |
| Model | NI-9871 |
| Description | 4 Port RS 485/422 Serial Module, Conformal Coating |
| Ports | 4-Port, RS485/RS422 |
| Maximum Baud Rate | 3.6864 Mbps |
| ESD Protection | ±15 kV data line |
| Maximum Cable Length | Up to 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 | Up to 1000 Vrms |
| Connector Type | Four-position, female pigtail; DB-9 male front panel connector |
| Weight |


