General
Number of serial ports	16 Stück
Ethernet isolation	1.5 kV
Dual-host redundancy	ja -
Dual-LAN	ja -

The Moxa CN2650-16-2AC-T is an industrial terminal server from the CN2600 series, designed for reliable and redundant transmission of serial data over Ethernet in demanding environments. The device features 16 serial ports supporting RS-232, RS-422, and RS-485, and is specifically designed for applications requiring high availability and continuous communication. The integrated Dual-LAN function enables the use of two independent network connections, increasing network availability. Additionally, the device offers Dual-Host Redundancy, allowing a backup server to automatically take over in case of primary server failure. Power supply is provided via two independent AC inputs, ensuring operational reliability even during power circuit failures.

Applications
This terminal server is suitable for industrial applications in sectors such as energy supply, transportation, building automation, and manufacturing plants. It is particularly suited for environments with high requirements for operational reliability, where interruption of serial communication could lead to production downtime or safety risks. The high operating temperature range of -40 to 85 °C enables use in extreme climatic conditions, for example, outdoors or in climate-stressed production halls.

Functions and Features in Detail
The device supports various serial operating modes, including Real COM, TCP/UDP Server/Client, Terminal, PPP, Reverse Telnet, RFC2217, DRDAS, and Redundant COM. The Redundant COM mode ensures that the same data packets are sent over two separate networks to avoid connection interruptions. The serial ports are equipped with 1.5 kV isolation, providing high electrical stability and protection against overvoltage. The console port is implemented as an 8-pin RJ45 connector, enabling flexible connection to management systems.

Technology Explained Simply
The Dual-LAN function means the device has two independent Ethernet connections, each with its own MAC and IP address. This allows communication over two separate networks, increasing availability. Dual-Host Redundancy enables a backup server to automatically take over in case of primary server failure, without interrupting communication. Power supply via two AC inputs ensures continuous operation even if one power circuit fails. The operating temperature range of -40 to 85 °C makes the device suitable for use in extreme environments, such as outdoor applications or industrial halls with high heat generation.

Compatibility and Accessories
The terminal server is compatible with various operating systems, including Windows, Linux, macOS, UNIX, and Android. Network management is performed via protocols such as SNMPv1/2c/3, Web Console, Telnet, Windows Utility, and DSU. Security features include authentication via local database and RADIUS, encryption with HTTPS, AES-128/256, RSA-1024, and SSHv2. Certifications include EMC/EMS according to IEC 61000-4-x, CISPR 32, and FCC, as well as safety standards UL 60950-1 or UL 62368-1. Environmental compliance is ensured by RoHS, CRoHS, and WEEE.

Mounting and Installation
The device is designed for mounting in 48,3 cm ( 19 inch ) racks and features a robust metal housing that withstands mechanical stress and environmental influences. The delivery includes the terminal server, a rack mounting kit, an RJ45-DB9 cable, one or two network cables (depending on model), a quick-start guide, and a warranty card. Installation is performed by securing the device in the rack and then connecting the serial devices and network connections.

Operational Advantages
The Moxa CN2650-16-2AC-T offers high operational reliability through redundant network and power supply, increasing the availability of serial communication. Support for various operating modes and operating systems enables flexible integration into existing systems. The high operating temperature and robust design make the device suitable for use in demanding industrial environments. Integrated security features protect data transmission from unauthorized access and manipulation. The MTBF (Mean Time Between Failures) is up to 831,925 hours, indicating high reliability.