General
Number of serial ports	4
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2
Air humidity	5–95 % nicht kondensierend

The Moxa NPort 5430I is a Device-Server of the NPort 5400 series, specifically developed for use in industrial environments. It enables the connection of up to four serial devices to an Ethernet network and serves as a bridge between legacy serial systems and modern network infrastructures. The devices are designed for operation in harsh environments and offer 2 kV isolation, ensuring high immunity to interference and protection against electrical overvoltage. The serial ports support the standards RS-422 and RS-485, making them particularly suitable for applications in automation technology, manufacturing, and intelligent transport systems. The serial communication can be configured with baud rates from 50 to 921.6 kbps, with data bits, stop bits, parity, and flow control methods (RTS/CTS, DTR/DSR, XON/XOFF) individually adjustable. RS-485 control is managed via ADDC, and resistors are configurable (120 Ohm terminator, Pull High/Low: 1 kΩ or 150 kΩ). The serial connections are made via terminal block, ensuring a robust and industrial-grade connection.

Applications include industrial automation, manufacturing processes, intelligent transport systems, and any applications requiring integration of serial devices such as sensors, controls, or measuring instruments into a network. The devices are designed for use in environments with high demands on reliability and immunity to interference. The operating temperature of the NPort 5430I ranges from 0 °C to 55 °C, with a storage temperature up to 75 °C. The humidity level must not exceed 5–95 % non-condensing. The devices are intended for indoor use, with a metallic housing construction providing high mechanical stability.

Functions and features in detail include an integrated LCD control panel with buttons, enabling local configuration and status display. Configuration is possible via various interfaces: Telnet, web browser (HTTP/HTTPS), or via the Windows Utility. Network functions include support for TCP/IP, UDP, SNMPv1/v2c/v3, LLDP, SMTP, and Rtelnet. IGMP v1/v2 filter support enables efficient multicast management. Security features include authentication via a local database, encryption via HTTPS (TLS 1.2), AES-128, RSA-1024, and SHA-1/256, as well as SNMPv3. The devices are designed for operation with various operating systems, including Windows 95 to 11, Windows Server up to 2022, Linux (kernel 2.4 to 6.x), macOS (10.12–11.x), various UNIX systems, and virtualization environments such as VMware, Parallels, and Fusion. Support for Android API from 3.1.x expands application possibilities.

Technology explained simply shows that the NPort 5430I functions as a device server connecting serial devices via Ethernet. The 2 kV isolation protects against electrical interference and voltage spikes, which is especially important in industrial environments. The RS-422/RS-485 interfaces enable reliable data transmission over long distances and in interference-sensitive environments. The dual power supply via terminal block and hollow pin connector increases availability, as a backup input is available. Power supply is 12–48 VDC, with 24 VDC DNV-compliant voltage also supported. Power consumption is 430 mA. The network connection is via an RJ45 port with 10/100BaseT(X), enabling flexible integration into existing networks.

Compatibility and accessories include use with serial devices supporting RS-422 or RS-485. Configuration is possible via various protocols and tools, with SNMP and HTTPS support facilitating integration into network management systems. The devices are supplied with a wall mounting kit and a power cable (CBL-PJTB-10), supporting installation in various environments. Mounting is possible on a table, wall, or optionally on DIN rail. The certifications include EMC standards (EN 55032/35, FCC, CISPR), immunity according to IEC 61000-4-x, safety according to UL 62368-1, and marine approval according to DNV. The MTBF (Mean Time Between Failures) at 25 °C is 718,600 hours, indicating high reliability.

Mounting and installation is done using the included wall mounting kit or optionally on DIN rail. The devices are compact (181 × 103 × 33 mm with holder, 158 × 103 × 33 mm without) and made of metal, ensuring a robust mechanical structure. Power supply is via two inputs (terminal block and hollow pin connector), enabling redundant power supply. Configuration can be done locally via the LCD control panel or remotely via web browser, Telnet, or Windows Utility.

Operational advantages lie in high reliability, easy configuration, and flexibility in integrating into existing networks. Support for various operating modes (TCP-Server, TCP-Client, Real COM) allows individual adaptation to specific applications. Extended security features and network management options (SNMP, HTTPS) simplify monitoring and maintenance. The high MTBF and robust construction ensure long-term operation without failure. The devices are designed for industrial environments, where reliability and immunity to interference are critical.