General
Number of serial ports	4 Stück
Air humidity	5–95 % (nicht kondensierend)
Data bits	5–8 -
Railway certification	EN 50121-4, EN 50155 -
MTBF	789.341 Stunden

The Moxa NPort 5450AI-M12-T is an industrial Device-Server from the NPort 5000AI-M12 series, specifically developed for use in rail vehicles and other mobile environments with high requirements for reliability and environmental resistance. It enables the connection of serial RS-232/422/485 devices to Ethernet networks, allowing legacy systems to be integrated into modern network infrastructures. The devices are designed for operation under harsh conditions, including vibrations, temperature fluctuations, and electromagnetic interference, and comply with standards EN 50155 and EN 50121-4, which apply to rail applications.

Applications

The NPort 5450AI-M12-T is suitable for industrial applications in the field of rail and vehicle technology, where stable and secure communication between serial end devices and an Ethernet network is required. Examples include monitoring of vehicle systems, control of sensors, or integration of communication devices in trains. Its robust design and certification according to EN 50155 make it particularly suitable for use in moving vehicles.

Functions and Equipment in Detail

The device features four serial ports in DB9 format, supporting RS-232, RS-422, and RS-485. The serial interfaces offer a data transfer rate of 50 bps to 921.6 kbps, with configurable data bits (5–8), stop bits (1, 1.5, 2), and parity (None, Even, Odd, Mark, Space). A 2-kV isolation protects the interfaces from electrical disturbances. The serial ports can be flexibly used via COM port grouping and multicast functions. For network communication, a 10/100BaseT(X) Ethernet port is available, implemented via an M12 D-coded (4-pole, female) connector.

Technology Explained Simply

The Device-Server acts as a bridge between serial devices and an Ethernet network. It enables communication via TCP/IP and UDP protocols, allowing serial data packets to be transmitted over the network. Configuration is performed via a web interface (HTTP/HTTPS), Telnet, or a Windows utility, with the 3-step web configuration enabling quick commissioning within minutes. Integrated support for Real COM/TTY drivers for Windows, Linux, and macOS ensures compatibility with various operating systems. For network monitoring and fault diagnosis, SNMPv1/v2c/v3 is integrated.

Compatibility and Accessories

The NPort 5450AI-M12-T is compatible with a wide range of serial devices supporting RS-232/422/485 interfaces. Network integration is achieved via standard Ethernet, making connection to existing network infrastructures straightforward. The devices are designed for use in rail vehicles and meet the required standards for this sector. The use of M12 connectors ensures a secure and robust connection suitable for industrial applications.

Mounting and Installation

The device is housed in a metal housing with IP40 protection, protecting against dust and splashing water. Dimensions are 80 × 216.6 × 52.9 mm, allowing integration into standardized mounting surfaces. Power supply is via an M12 A-coded (5-pole, male) connector with a voltage range of 12 to 48 VDC. The operating voltage is EN 50155-compliant at 24/48 VDC. Power consumption is up to 440 mA at 12 VDC. Installation is performed via the web interface, with the 3-step configuration enabling quick commissioning.

Operational Advantages

The NPort 5450AI-M12-T offers high reliability with an MTBF of up to 789,341 hours. Integrated functions such as Watchdog, RTC, and acoustic alarm support fault diagnosis and enhance operational safety. Security features include HTTPS (TLS 1.2), AES-128 encryption, RSA-1024, and SHA-1/256, as well as local user management. Certification according to EN 50155 and EN 50121-4 ensures operation under harsh environmental conditions. The warranty period is 5 years.

Scope of Delivery

The scope of delivery includes the device NPort 5450AI-M12-T, a quick start guide, and a warranty card.

Environmental Conditions

The device is designed for operating temperatures of -40 to 75 °C (Wide Temp.), with the standard version supporting -25 to 55 °C. Storage is at -40 to 85 °C. Humidity is 5–95 % (non-condensing). Certifications include rail (EN 50121-4, EN 50155), safety (UL 60950-1), EMC (EN 55032/35, CISPR 32, FCC Part 15B), as well as ESD (up to 8 kV) and Surge (up to 2 kV).