Useful Links
Disclaimer: Advanced Relay provides these links as useful resources. We cannot assume any liability regarding the accuracy of their contents. We do not necessarily endorse these products.
Standard Organizations
- International Telecommunications Union (ITU)
- International Organization for Standardization (ISO)
- Internet RFC/STD/FYI/BCP Archives
- American National Standards Institute (ANSI)
- IEEE Standards Association
Protocol Analyzers
Communications Theory On-line
- Protocol Directory
- Free On-line Dictionary of Computing
- Global Engineering Documents
- RAD University
- Connected: Internet Encyclopedia
- Cisco’s Internetworking Technology Handbook
- Pinouts for Serial Interfaces
- Basics of RS-422 and RS-485 Comms
- RS-232, RS-422, RS-485 TI Video
ITU Recommendations Downloads
[Last updated February 14th, 2024]