General
Serial ports	4
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2
MTBF	467.777 Stunden

The Moxa NPort 5450AI-M12 is a Device-Server of the NPort 5000AI-M12 series, specifically developed for use in rail applications and other industrial environments with high vibration loads. The device enables the integration of serial devices into Ethernet networks, making legacy systems accessible over IP networks. Its robust design with M12 connectors ensures a reliable connection under harsh operating conditions. Compliance with standards EN 50155 and EN 50121-4 makes the device suitable for use in railway vehicles, where high requirements for protection against shock, vibration, and environmental conditions exist.

Applications
The NPort 5450AI-M12 is suitable for use in rail systems, such as in trains, subways, or trams, where serial sensors, control devices, or communication modules must be connected via Ethernet. It can also be used in other industrial environments with high mechanical loads, such as in manufacturing or mining. Support for RS-232, RS-422, and RS-485 enables connection to various serial peripheral devices. Automatic switching between these standards reduces configuration complexity.

Functions and Features in Detail
The device features four serial ports, each connected via a DB9 male connector. The serial interfaces support baud rates from 50 to 921.600 bps, data bits from 5 to 8, stop bits 1, 1.5, or 2, and parities including None, Even, Odd, Space, and Mark. Flow control is supported via RTS/CTS, DTR/DSR, or XON/XOFF (RS-232 only). For RS-485, automatic direction control (ADDC) is integrated. The serial signals are protected with 2 kV isolation, providing high immunity to interference and safety against potential differences.

Technology Explained Simply
The NPort 5450AI-M12 acts as a bridge between serial devices and an Ethernet network. Connection to the network is made via the integrated 10/100BaseT(X) Ethernet port with an M12 D-coded, 4-pin female connector. Configuration is performed via a web interface (HTTP/HTTPS), a Windows utility, DSU, or Telnet. Network functions include TCP/IP, UDP, DHCP, ARP, BOOTP, SNMPv1/v2c/v3, LLDP, SMTP, DNS, and IGMP. Support for SNMPv3 enables secure network management. Configuration is simplified through a 3-step web configuration, allowing for quick commissioning.

Compatibility and Accessories
The Device-Server supports a wide range of operating systems, including Windows 95 to 11, Server 2003 to 2022, Linux (kernel 2.4.x to 5.x), macOS 10.12 to 10.15, various UNIX systems such as SCO, QNX, Solaris, FreeBSD, AIX, HP-UX, Android API from 3.1, as well as embedded systems like CE 5.0/6.0 and XP Embedded. Driver support includes Real COM and TTY drivers, facilitating integration into existing systems. Operating modes include Real COM, TCP Server/Client, UDP, Pair Connection, Ethernet Modem, Terminal, and Reverse Terminal, providing flexible communication options.

Mounting and Installation
The device is delivered in a metal housing with protection rating IP40. Dimensions are 80 × 216.6 × 52.9 mm, and weight is 686 g. Power supply is via an M12 A-coded, 5-pin male connector with an input voltage of 12 to 48 VDC. Power consumption is 440 mA. Installation typically occurs at a suitable location within the vehicle or industrial facility, with mechanical stresses handled by the M12 connectors and robust housing.

Operational Advantages
High reliability is supported by a Watchdog Timer (WDT), RTC (Real-Time Clock), and a beeper for status notifications. The MTBF (Mean Time Between Failures) is 467,777 hours, highlighting high operational safety. Security features include a local user database, HTTPS (TLS 1.2), AES-128, RSA-1024, and SHA-1/256 encryption. Certifications include UL 60950-1, EN 55032/35, FCC, IEC 60068-2-6 for shock and vibration, and ESD 6 kV (contact), 8 kV (air). Surge protection values are 2 kV (signal) and 0.5 kV (power). Environmental conditions include an operating temperature of -25 to 55 °C (standard) and -40 to 75 °C (wide temp.), with a storage temperature of -40 to 85 °C. Humidity is 5 to 95 %, non-condensing. Green compliance includes RoHS, CRoHS, and WEEE. Warranty is 5 years.

Scope of Delivery
The device is delivered with a quick start guide and a warranty card. Delivery includes a single unit ready for immediate operation.