The Moxa NPort 5210 is a 2-port RS-232 device server designed to connect legacy RS-232 devices to Ethernet for reliable network access. With a 0 to 55°C operating temperature range, it’s a strong option for typical industrial indoor environments where you want stable RS-232-to-IP connectivity in a compact form.

Why We Love This Product

• Two RS-232 ports—ideal for small installations with multiple serial devices
• 0 to 55°C operating range fits most control cabinet and equipment room environments
• Permanent, manageable alternative to temporary USB-to-serial approaches
• Good balance of footprint, capacity, and simplicity

How Our Customers Use It

• Connecting RS-232 instruments and controllers into Ethernet networks
• Remote access for maintenance teams supporting serial-based assets
• Reducing serial infrastructure sprawl by consolidating two ports in one unit
• Incremental upgrades where replacement of serial equipment isn’t justified

Choosing Tips

• Choose NPort 5210 when you want a 2-port RS-232 device server with 0 to 55°C rating
• If you need the higher 0 to 60°C rating, choose the NPort 5210A variant
• If you need RS-422/485 support, the NPort 5250A is the better fit