MOXA NPort 5110 1-Port Serial Device Server - Compact RS232 Network

In this review the MOXA NPort 5110 is assessed as a compact, single-port serial device server aimed at engineers and integrators who need to connect RS232 devices to Ethernet. The bottom line: it is best for sites that require a small footprint and reliable legacy serial-to-TCP/IP conversion, because its Real COM/TTY drivers and multiple configuration options make integration into Windows and Linux systems straightforward. The review focuses on real-world setup, network management features, and where the device fits in modern industrial networks.

Key Features

• Small size for easy installation: The compact enclosure lets the device be mounted close to legacy equipment or inside control cabinets where space is limited.
• Real COM/TTY drivers: Native driver support for Windows and Linux provides a local COM port mapping that makes older applications work over Ethernet without code changes.
• Multiple configuration methods: Configuration by web browser, Telnet, or the Windows utility offers flexibility for headless setups and remote management.
• Standard TCP/IP interface: The device supports common TCP/IP modes so serial data can be tunneled or served to multiple networked hosts reliably.
• SNMP MIB-II support: Network managers can monitor device health and status through standard SNMP for integration into existing network management systems.
• Windows utility for bulk setup: An easy-to-use Windows configuration tool speeds deployment when several device servers must be prepared with consistent settings.

Who It's For

The MOXA NPort 5110 is well suited for industrial automation technicians, facilities engineers, and IT staff who must keep legacy RS232 instruments accessible on modern Ethernet networks. It is particularly useful where physical space is constrained and where a genuine COM port mapping is needed to avoid rewriting host software.

Conversely, buyers who need multiport aggregation, Wi-Fi connectivity, or built-in advanced protocol gateways should consider other products. For purely USB-to-network needs or high-density serial consolidation, a different device with more ports may be a better fit.

Pros & Cons

Pros

• Compact form factor that fits tight installation spaces without sacrificing functionality.
• Real COM/TTY drivers enable legacy applications on Windows and Linux to communicate over Ethernet transparently.
• Flexible configuration via web, Telnet, or Windows utility accommodates different deployment workflows.
• SNMP MIB-II support allows straightforward integration with existing network monitoring systems.

Cons

• Single serial port limits use where multiple serial devices must be aggregated into one unit.
• No wireless connectivity out of the box, so it requires wired Ethernet access at the installation point.

Specifications

Product	MOXA NPort 5110 1-Port Serial Device Server
Serial interface	RS232, DB9 male
Ethernet	10/100 Mbps
Driver support	Real COM/TTY drivers for Windows and Linux
Management	Web browser, Telnet, Windows utility, SNMP MIB-II
Operation modes	Standard TCP/IP interface with versatile modes

Our Verdict

The MOXA NPort 5110 is a solid, no-nonsense serial device server for environments that need a small, reliable RS232-to-Ethernet bridge. It offers excellent compatibility via Real COM/TTY drivers and flexible configuration paths, making it good value for integrators maintaining legacy equipment on modern networks. Buy it when you need trustworthy serial connectivity in a compact package.

Frequently Asked Questions

Can this device be configured remotely?
Yes, it can be configured via web browser or Telnet and managed through SNMP for remote monitoring.

Will my Windows application see a local COM port?
Yes, MOXA provides Real COM drivers so the serial port can be mapped to a local COM port in Windows.

Does it support multiple serial devices?
Not in a single unit; this model has one RS232 DB9 port, so use multiple units or a multiport model for several devices.