RS-232 to RS-485 Converter
Part 7 of the Industrial Networking: Serial to Ethernet training series
RS-485 can be connected in a 2 or 4-wire configuration depending on the hardware of the device. Electrical noise causes problems when sending over long distances so grounded wire shielding and termination resistors are necessary.
Long-time automation trainer Doug Bell, Interconnecting Automation, covers the basics of Industrial Networking with AutomationDirect’s Chris Harris. This video is produced by CFE Media to be noncommercial and educational. Runtime is approximately 5 minutes.