General
Number of serial ports	4 Stück
Input voltage	12–48 VDC
Air humidity	5–95 % (nicht kondensierend)
MTBF	467.777 Stunden

The Moxa NPort 5450AI-M12-CT is a serial device server specifically developed for use in railway applications and other harsh environments. It enables the integration of serial RS-232/422/485 devices into Ethernet networks, with compliance to standards EN 50155 and EN 50121-4 ensuring that the device meets requirements for rail transport. The robust metal housing with IP40 protection rating and M12 connectors ensures a vibration-resistant and reliable connection, even under temperature fluctuations and electromagnetic interference.

Applications

The NPort 5450AI-M12-CT is primarily designed for use in railway systems, industrial automation systems, and other environments with high demands for reliability and environmental resistance. Conformity with EN 50155 makes it particularly suitable for vehicles and infrastructure components in rail transport. The M12 connectors provide a mechanically stable connection that remains intact even under vibration and mechanical stress.

Functions and Features in Detail

The device features four serial DB9 ports supporting RS-232, RS-422, and RS-485. The serial interfaces are equipped with galvanic isolation of 2 kV, providing high immunity to interference and protection against voltage surges. The baud rate can be set up to 921,600 bps, enabling high data transfer rates. RS-485 data direction control is automatic (ADDC), simplifying configuration. The serial ports support various data formats, including 5 to 8 data bits, 1, 1.5, or 2 stop bits, and parity types such as none, even, odd, Space, and Mark. Flow control methods such as RTS/CTS, DTR/DSR, and XON/XOFF (RS-232 only) are also integrated.

Technology Explained Simply

The NPort 5450AI-M12-CT operates as a device server that connects serial devices to Ethernet. It enables communication between legacy systems and modern network infrastructures. Configuration is performed via a web interface (HTTP/HTTPS), Telnet, DSU, Windows Utility, or MCC. Network functions include TCP/IP, UDP, ARP, BOOTP, DHCP, DNS, SNMPv1/v2c/v3, LLDP, and SMTP. Support for IGMP filters (v1/v2) enables efficient multicast management. Security features include local user management, HTTPS encryption (TLS 1.2), AES-128, RSA-1024, SHA-1, and SHA-256, protecting data transmission.

Compatibility and Accessories

The device is compatible with a wide range of operating systems, including Windows 95 to Windows 11, Windows Server 2000–2022, Linux Kernel 2.4–5.x, macOS 10.12–10.15, various UNIX systems (SCO, QNX, Solaris, FreeBSD, AIX, HP-UX), Android API from version 3.1, as well as Windows CE 5.0/6.0 and XP Embedded. Power supply is via an M12 A-coded, 5-pin connector with an input voltage of 12 to 48 VDC. The power supply is EN 50155-compliant at 24/48 VDC. The model designation -CT indicates optional protective coating, providing additional protection against corrosion and environmental influences.

Mounting and Installation

Installation is performed via the integrated web interface, which enables a 3-step configuration, allowing commissioning in under 30 seconds. The M12 connectors simplify mechanical mounting and ensure a secure connection. The devices are designed for use in harsh environments and require no special mounting tools. Physical dimensions are 80 × 216.6 × 52.9 mm, and the weight is 686 g.

Operational Advantages

The NPort 5450AI-M12-CT offers high operational reliability through features such as COM port grouping, UDP multicast, SNMP monitoring, and alarm notifications via email or trap. The integrated watchdog function, buzzer, and RTC (Real-Time Clock) enhance reliability. The MTBF (Mean Time Between Failures) is 467,777 hours according to Telcordia Standard TR/SR, indicating high longevity and low failure probability. The operating temperature of the standard model ranges from -25 to 55 °C, and the storage temperature ranges from -40 to 85 °C. Humidity is 5–95 % (non-condensing). Certifications include railway (EN 50155, EN 50121-4), safety (UL 60950-1), EMI/ESD/vibration (IEC 61000-4-x, IEC 60068-2-6, CISPR 32, FCC), and environmental standards (RoHS, CRoHS, WEEE). The warranty is 5 years.

Scope of Delivery

The scope of delivery includes 1 × NPort 5000AI-M12 device server, 1 × quick start guide, and 1 × warranty card.