Description
The National Instruments NI-9871E RS-485/RS-422 Serial Module, with its part number 198851A-02L, is a versatile communication module that boasts four ports for interfacing with serial devices. Each port adheres to the ANSI/EIA/TIA-485 standard, ensuring compatibility with a broad range of equipment, and utilizes RJ-50 connectors for reliable connections.
An external power supply is required to operate the module, which powers the RS-485/RS-422 transceivers. The module’s power connections are clearly labeled as 1) VSUP, 2) VSUP, 3) COM, and 4) COM, allowing for straightforward installation. In terms of energy efficiency, the NI-9871E is designed to consume a maximum of 0.5 W in active mode and drops to an impressive 50 µW in sleep mode, contributing to a lower operational cost and heat output.
The module’s thermal dissipation is capped at 1.5 W when active, even at temperatures as high as 70°C, and it’s minimized to 55 mW during sleep mode, which is beneficial for maintaining a cooler system environment. Despite the announcement of its obsolete status by National Instruments, the NI-9871E remains available for purchase and service through Apex Waves, ensuring continued support for users relying on this module.
| Specification | Detail |
|---|---|
| Product Name | National Instruments NI-9871E RS-485/RS-422 Serial Module |
| Part Number | 198851A-02L |
| Number of Ports | 4 |
| Standard Compatibility | ANSI/EIA/TIA-485 |
| Connector Type | RJ-50 |
| External Power Supply Required | Yes |
| Connection Names | 1) VSUP, 2) VSUP, 3) COM, 4) COM |
| Power Consumption (Active) | 0.5 W maximum |
| Power Consumption (Sleep Mode) | 50 µW maximum |
| Thermal Dissipation (Active at 70°C) | 1.5 W maximum |
| Thermal Dissipation (Sleep Mode) | 55 mW maximum |
| Obsolete Status | Announced by National Instruments, available from Apex Waves |
Question 1: What are the thermal dissipation values for the National Instruments NI-9871E RS-485/RS-422 Serial Module during active and sleep modes, respectively?
Answer 1: The National Instruments NI-9871E RS-485/RS-422 Serial Module has a thermal dissipation value of 1.5 W during active mode and 55 mW during sleep mode.
Question 2: What is the power consumption of the National Instruments NI-9871E RS-485/RS-422 Serial Module in active and sleep mode?
Answer 2: The National Instruments NI-9871E RS-485/RS-422 Serial Module employs RJ-50 connectors for establishing reliable connections with serial devices.
Question 3: What are the specifications and continuing support options for the National Instruments NI-9871E RS-485/RS-422 Serial Module with part number 198851A-02L?
Answer 3: The National Instruments NI-9871E RS-485/RS-422 Serial Module, part number 198851A-02L, features four ports with RJ-50 connectors adhering to the ANSI/EIA/TIA-485 standard, requires an external power supply, consumes a maximum of 0.5 W in active mode and 50 µW in sleep mode, with thermal dissipation limited to 1.5 W when active and 55 mW in sleep mode, and despite
Question 4: What are the power requirements and thermal dissipation characteristics of the National Instruments NI-9871E RS-485/RS-422 Serial Module, with part number 198851A-02L, and what is its status regarding availability and support?
Answer 4: The National Instruments NI-9871E RS-485/RS-422 Serial Module consumes a maximum of 0.5 W in active mode and reduces to 50 µW in sleep mode.
Question 5: What type of connectors does the National Instruments NI-9871E RS-485/RS-422 Serial Module employ for establishing reliable connections with serial devices?
Answer 5: The National Instruments NI-9871E RS-485/RS-422 Serial Module, part number 198851A-02L, requires an external power supply and consumes a maximum of 0.5 W in active mode and 50 µW in sleep mode, with thermal dissipation capped at 1.5 W when active and minimized to 55 mW in sleep mode; despite being declared obsolete by National Instruments, it remains available for purchase and service through Apex Waves, ensuring ongoing
