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July 20, 2008
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RS-485 and RS-422
RS-232
Protecting Ports with Isolation and Surge Protection
Ethernet
Glossary
Current Loop
Fiber Optics
Software Tools
Wireless
Other

 
Home > Tech Notes

Technical Library

RS-485 and RS-422
 

Technical Articles
•   RS-422/485 Application Note
•   B&B Converters for the Industrial World
•   Basics of the RS-485 Standard
•   Cable Selection for RS-422 and RS-485 Systems
•   Getting From Here to There: Serial Communications Systems
•   Polarities for Differential Pair Signals (RS-422 and RS-485)
•   Port Powered Serial Converter FAQ
•   Tips for Using Port Powered Converters
•   RS-485 Problem Solver - Trouble Shooting Guide Walks You Step by Step
•   RS-485 Quick Guide - Just the Essentials on a Single Piece of Paper
•   System Design With Port Powered Converters
•   Troubleshooting an RS-232 to RS-485 Interface Converter
•   RS-485 Q&A
•   Industrial Bus Compatibility Chart
•   An RS-485 Tale of Woe

Illustrations
•   RS-422 Converter to 422 Device (Illustration)
•   RS-422 Loopback Connections
•   RS-485 2-Wire Converter to 2-Wire 485 Devices
•   RS-485 4-Wire Converter to 4-Wire 485 Devices
•   RS-485 Star Network With Repeaters
•   RTS Control
•   Send Data Control
•   Using RS-422 to Extend RS-232 Connections
•   4W RS485 to Fiber Connections - FOSTCDR
•   4W to 2W Connections
•   485OPDR Isolation Between Buildings
•   485 Port Power Powered Converter T/S Flow Chart
•   485LDRC9 Troubleshooting Illustration
•   485OPDRI Switch Illustration

FAQ
•   232/422 Converter Connections for Extending RS-232?
•   485LDRC9 - Extending RS232 Connections
•   How Can I Check My 2-Wire RS-485 Port or Converter To Verify Operation?
•   How Can I Check My 4-Wire RS-485 Port or Converter To Verify Operation?
•   How Can I Check My RS-422 Port or Converter? - Loopback Test
•   RS-422 Connections
•   RS-485 Connections
•   What Terminals are used when connecting the 485LDRC9 for RS-485 or RS-422?
•   Connections for RS-485 or RS-422 to the 4WSD9OTB or 4WSD25OTB Converters?
•   Performing USB and Serial Converter Loopback Test
 

RS-232
 

Technical Articles
•   Options for Adding Serial Ports
•   Tips for Using Port Powered Converters
•   Externally Powering Port Converters
•   Automatic Serial Data Collection
•   Getting From Here to There: Serial Communications Systems
•   Serial Ports and Windows 95
•   System Design With Port Powered Converters
•   Quick Reference Card - RS-232 DB9/DB25 pinouts/levels ASCII table
•   COM4 Address Conflicts
•   Carry a Palm PDA Instead of a Laptop
•   Create Palm Software to Communicate with Your Serial Devices

Illustrations
•   Using RS-422 to Extend RS-232 Connections
•   RS-232 DTE/DCE Cables (includes Loopback & DB9/DB25 Connections)
•   Connector Types (Rear Panel) Desktop

FAQ
•   RS-232 Connections That WORK! - DTE/DCE
•   How Can I Check My RS-232 Port? - Performing A Loopback Test
•   How Can I Extend the RS-232 Connections for a Casio QT-2100
•   Performing USB and Serial Converter Loopback Test
 

Protecting Ports with Isolation and Surge Protection
 
 

Ethernet
 
 

Glossary
 
•   Glossary
 

Current Loop

 
 

USB
 
 

Fiber Optics
 
 

Software Tools
 
 

Wireless
 
 

Other
 
 
   


 

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