General
Number of serial ports	4 Stück
Air humidity	5–95 % (nicht kondensierend)
Data bits	5–8 -

The Moxa NPort 5450I is a 4-port device server that integrates serial devices with RS-232, RS-422 or RS-485 interfaces into an Ethernet network. It serves as a bridge between legacy serial devices and modern IP-based networks, enabling communication over TCP/IP. The device is designed for industrial applications and features a robust metal housing construction along with galvanic isolation of 2 kV, ensuring high immunity to interference and protection against voltage surges. The serial ports are individually configurable and support various operating modes such as TCP Server, TCP Client, Real COM, UDP, Pair Connection, Reverse Telnet, and Ethernet Modem. This flexibility allows adaptation to different network architectures and application scenarios.

Applications

The NPort 5450I is suitable for industrial environments where serial devices such as sensors, controls, printers, or measuring instruments need to be integrated into an IP network. It is particularly suited for applications in manufacturing, energy supply, transportation, and the maritime sector, where certification according to DNV is relevant. The support for DNV-compliant applications at an operating voltage of 24 VDC also makes it suitable for shipboard installations. The operating temperature range of 0 to 55 °C for standard models and -40 to 75 °C for wide-temperature models extends its use in demanding climatic environments.

Functions and Features in Detail

The device features four serial ports, which are equipped with DB9 male connectors or terminal blocks depending on the model. The serial interfaces support RS-232, RS-422, and RS-485 standards, with RS-485 featuring automatic data direction control (ADDC) and an integrated 120 Ohm terminator. Baud rates can be set from 50 bps to 921.6 kbps, with configurable data bits (5–8), stop bits (1, 1.5, 2), and parities (None, Even, Odd, Mark, Space). Flow control is supported via RTS/CTS, DTR/DSR, or XON/XOFF. The serial ports are individually configurable, allowing each port to perform different functions.

Technology Explained Simply

The NPort 5450I operates as a serial-to-Ethernet adapter, converting serial data packets into IP packets and transmitting them over the network. Communication occurs via an RJ45 port with 10/100BaseT(X) Ethernet support, equipped with 1.5 kV magnetic isolation. Configuration is performed via web interface (HTTP/HTTPS), Telnet, or a Windows utility software. Network functions include protocols such as ARP, BOOTP, DHCP, DNS, SNMP v1/v2c/v3, ICMP, LLDP, and SMTP. For integration with various operating systems, drivers are available for Windows (COM driver), Linux (TTY driver), and macOS (TTY support).

Compatibility and Accessories

The NPort 5450I is compatible with a wide range of serial devices communicating via RS-232, RS-422, or RS-485. Support for various operating modes enables flexible integration into existing networks. The serial ports can be configured independently, enabling a wide range of application scenarios. The devices are designed for mounting on a tabletop, DIN rail (optional), or on a wall. The delivery includes a power supply cable (CBL-PJTB-10), a wall mounting kit, a quick start guide, and a warranty card.

Mounting and Installation

Installation is performed by securing the device to a tabletop, DIN rail (optional), or wall. The metal housing is equipped with mounting eyes to ensure secure installation. Power supply is provided via a 3-pole terminal block and a power supply socket, supporting dual DC power supply. Configuration can be done via the integrated LCD display (available only on standard-temperature models) or via web interface, Telnet, or Windows utility. IP address, operating modes, and other network settings can be adjusted directly on the device using the display and control buttons.

Operational Advantages

The NPort 5450I offers high reliability through galvanic isolation of 2 kV, which protects against interference and voltage surges. Support for various operating modes and protocols enables flexible integration into existing networks. Configuration via web interface, Telnet, or Windows utility is user-friendly and allows for centralized management. Certification according to EN 55032/35, CISPR 32, FCC Part 15B Class A, and IEC 61000-4 standards for ESD, Surge, and EFT ensures high electromagnetic compatibility. Safety certification according to UL 62368-1 and DNV approval for maritime applications enhance operational safety. The MTBF is up to 1,213,993 hours, indicating a long service life. The 5-year manufacturer's warranty underscores the quality of the device.