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Welcome to the RS-485 / RS-422 Transceivers E2E page!
Listed below are a variety of resources to assist with the implementation of RS-485 and RS-422!
Note that many RS-485 resources also apply to RS-422
RS-485 / RS-422 Basics:
- RS-485 Video Series
- RS-422 and RS-485 Standards Overview and System Configurations
- The RS-485 Design Guide
- Mitigating UART receiver glitches while switching modes
Frequently Asked Questions (FAQ):
- Why are termination resistors necessary? How do I terminate an RS-485 system?
- Is 54 Ohm termination recommended? What is the difference between 120 Ohm and 54 Ohm?
- What is external fail-safe? Why is fail-safe helpful?
- How old of a date code is too old? Do ICs expire?
- Are 3.3V and 5V RS-485 transceivers compatible?
- Can galvanic isolation be used in RS-485 with a transformer?
- What is the difference between RS-422 and RS-485?
- How to calculate power consumption for RS-485?
- What are some recommended RS-485 transceivers?
IEC ESD, EFT, and Surge Information:
- How do I protect RS-485 from IEC ESD, EFT, and Surge?
- What devices does TI have with integrated surge protection?
- High EMC Immunity RS-485 Reference Design
- What are some recommend devices for IEC ESD protection in RS-485?
- What is an EFT? Part 1
- What is an EFT? Part 2
- What are the IEC 61000 4-2, 4-4, and 4-5 standards?
- What are the differences between Human Body Model (HBM) and IEC 61000 4-2?
Special Functions of Select RS-485 devices:
- What is Auto-direction? Why is it useful?
- Flexible RS-485: Simplified Multi-System Design
- Multiprotocol Transceivers with THVD44xx
- Receiver Equalization for extending RS-485 distance and data rate
Power Line Communication Using Powerbus (OOK modulated RS-485):
