Webinar: Legacy serial (RS-232 and RS-485) modem to IP broadband migration

March 28th 2019 | English | Tech skill level: Medium


How to ensure continued reliable operation of legacy modem connections.

The way we use digital communications to support industrial control systems is continually changing. This is driven by many factors including the need for 24/7/365 visibility, digitization of processes, IIoT and new regulations. The way we communicate over longer distances is also changing. Not so long ago we used dial up modems over land lines and 2G networks or modems over leased lines.

Today, the increased need for broadband communications is sweeping away these old methods and technologies, with the Internet becoming the new media of choice and IP the method of transmitting data. But there is still a huge number of legacy serial devices that have a long service life ahead of them. The cost of replacing all these devices with an IP equivalent would be astronomic and largely unnecessary.

In this short webinar Westermo’s Network Technology Director Ray Lock explains how to migrate legacy serial devices from dial up or leased line modems communications to serial over IP broadband.

The following topics are covered

  • Differences between streaming (modems) and packetised (IP)
  • How the conversion from serial to IP works
  • How ATD dialup over IP works
  • Leased lines/dialup over broadband
  • Migrating RS-485 multidrop to IP
  • Potential issue and their mitigation
  • Scaling up, how to migrate large serial leased line or dialup modem system
  • Serial over UDP or TCP, what’s best for your application
  • Increased resilience when using IP broadband

Duration: 51 minutes.

Jennifer Mooney-Perrotta

Customer service, Westermo North America

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