General
Power consumption	1,5 W
SDRAM memory	1 MB
MTBF	290.276 Std.

The Moxa NE-4110S is a compact embedded device server that integrates existing serial devices with RS-232 interface into Ethernet networks. It serves as a bridge between analog serial communication devices and modern IP-based networks, enabling network capability of legacy systems without hardware modifications. The device is specifically designed for space-critical OEM applications, as it measures 57 × 40 mm, smaller than half a credit card. The low power consumption of 1.5 W at 5 VDC makes it an energy-efficient solution for embedded systems.

Applications

The NE-4110S is suitable for industrial and embedded applications where serial devices such as sensors, controls, or measuring instruments need to be connected to a local or higher-level network. Typical use cases include networking machines in manufacturing, integrating HVAC systems or security systems into building management systems, and use in mobile or space-limited environments such as vehicles or small control boxes. The support for operating temperatures from 0 to 55 °C makes the device suitable for standard industrial environments, with an extended temperature range version (–40 to 75 °C) also available.

Features and Specifications in Detail

The device features a serial interface with RS-232 protocol, supporting baud rates from 110 bps to 230.4 kbps. Configuration of serial parameters such as data bits (5–8), stop bits (1, 1.5, 2), and parity (None, Even, Odd, Space, Mark) is done via software. Flow control options include RTS/CTS, DTR/DSR, XON/XOFF, and the option without flow control. Additionally, the NE-4110S offers a TTL console interface for diagnostic and configuration purposes. The Ethernet interface is implemented via an 8-pin RJ45 connector and supports 10/100 Mbps with Auto MDI/MDI-X, enabling flexible cabling without additional cable reconfiguration.

Technology Explained Simply

The NE-4110S is based on a 16-bit MCU platform with 2 MB Flash and 1 MB SDRAM memory. The integrated networking functionality includes support for TCP/IP, UDP, ARP, DHCP, ICMP, HTTP, SNMPv1/v2c, and SMTP. Configuration is performed via a web console (HTTP), a Windows utility, Telnet, or serial interface. The software supports various operating modes: Real COM, TCP Server, TCP Client, and UDP, allowing flexible integration into different network environments. SNMP Traps and email notifications for events support remote monitoring and fault diagnosis. The magnetic isolation of 1.5 kV protects the device from electrical disturbances and enables safe communication in industrial environments.

Compatibility and Accessories

The NE-4110S is compatible with a wide range of operating systems, including Windows (95 to Windows 11, server versions), Linux (kernel 2.4 to 5.x), macOS, UNIX, and Android (API from 3.1). Driver support for these systems enables seamless integration into existing IT infrastructures. The serial interface supports signals TxD, RxD, RTS, CTS, DTR, DSR, DCD, and GND, ensuring connection to a broad range of RS-232 devices. The Ethernet interface complies with standards IEEE 802.3, 802.3u, and 802.3x. Certifications according to EN 55032/24, FCC, CISPR 32, as well as ESD/Surge according to IEC 61000-4-2 to -4-8 ensure EMC compliance. The device also complies with environmental regulations RoHS, CRoHS, and WEEE.

Installation and Mounting

Installation involves connecting the serial device to the RS-232 interface of the NE-4110S and connecting the Ethernet port via an RJ45 cable to the network. Configuration can be done via the web console in a browser, a Windows utility, or Telnet. Power supply is via 5 VDC with a current consumption of 290 mA. Mounting is simple due to the compact dimensions and does not require special tools. The device can be installed in equipment enclosures, controls, or other closed housings.

Operational Advantages

The NE-4110S offers a reliable and low-maintenance solution for networking serial devices. The low power consumption and compact design reduce space requirements and operating costs. Support for SNMP and email notifications enables proactive monitoring and quick response to faults. The long MTBF (Mean Time Between Failures) of 290,276 hours (Telcordia SR332) highlights the high reliability of the device. The 5-year manufacturer’s warranty provides additional security for operation in critical applications.