3 Keys for Great Serial-to-Ethernet Reliability

The Importance of Reliable Serial-to-Ethernet Communications

In today's increasingly competitive global environment, leveraging the right technologies is more important than ever for your business to stay ahead of the competition. Although serial device servers allow users to retain their legacy RS-232/422/485 devices and interface directly with a future-proof Ethernet networks, ensuring high reliability and data integrity requires more than simple hardware.


For 20 years, Moxa has led the world in providing serial device servers to connect legacy serial field devices to an Ethernet LAN/WAN. As your trusted serial partner, Moxa understands the need for high reliability and strives to provide advanced solutions to quickly and easily connect serial devices to Ethernet networks, and integrate enterprise data for automation.

3 Keys for Great Serial-to-Ethernet Reliability

Host Reliability
Minimize Downtime with Multi-Host Support

Do you need multiple hosts for backup?

A backup host to keep your network online if your primary host crashes. However, most backup hosts cannot automatically synchronize and manage a network.

Do you need multiple hosts for distributed control?

If your network has two (or more) hosts for redundancy or management of remote sites, you might end up sending two (or more) commands at the same time. However, serial field devices cannot handle more than one command at a time.

Network Reliability
Increase Reliability with Redundant Networks

Do you need network redundancy in a single LAN architecture?

Networks that operate in harsh environments sometimes need communication redundancy to ensure fast recovery time for non-stop operation.

Do you need network redundancy for dual LANs?

Alternatively, you can set up dual LANs for network redundancy. However, most of the solutions that rely on firmware to detect network status increase the response time, and also require additional programming effort and time.

Device Reliability
Eliminate Data Loss with Local Device Intelligence

Do you need backup serial devices?

Sometimes, in order to ensure stable operation of the device layer, backup serial devices also need to be deployed. However, for these newly added devices, engineers need to modify the settings of existing software to transmit data simultaneously to both the primary serial devices and the redundant devices, affecting system reliability.

Do you need a way to avoid data overflow?

Besides backup devices, you'll also need to ensure accurate and precise data, and prevent data overflow.

Application in Factory Automation

Reliability is the main consideration in factory automation; any network disconnection might cause the increasing of productivity cost. Therefore, network redundancy is one of a factor. Secondly, most of the enterprises located factory in another regions to decrease cost, therefore, in the system, they not only require local control site for promptly reaction and control, but also need to also transmits data to remote site for data storage, of course it also support remote control. But in the past, these requirements two hosts in the same system might cause the confusion of local site if remote host send the command at the same time. To avoid the challenges that shown as above, Moxa's NPort serial device servers can help customers accomplish high reliability.

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