SN3401 ATEN 1-Port RS-232/422/485 Secure Device Server over IP An easy-to-use, secure, and reliable solution makes it easier to connect a wide range of serial devices to an IP-based Ethernet LAN in an instant. The ATEN SN3401 Secure Device Server provides simple, fast serial-to-Ethernet connectivity, allowing users to remotely access serial RS-232/422/485 devices from a PC located anywhere. With various reliable features, the SN3401 is ideal for commercial and industrial process control applications. Serial-to-Ethernet Connectivity 1 RS-232/422/485 serial port for secured serial data over Ethernet transmission Software-configurable termination (120 ?) and pull high/low resistor (1K ohms or 150K ohms) integrated to the RS-485 mode to avoid signal reflection Secured operation modes – Secure Real COM, Secure TCP Server / Client, Secure Serial Tunneling Server / Client,Console Management (SSH), and Console Management Direct (SSH) Standard operation modes – Real COM, TCP Server / Client, Serial Tunneling Server / Client, UDP, Console Management (Telnet), and Console Management Direct (Telnet) Real COM, Real TTY, and Fixed TTY drivers for Windows, Linux, and UNIX Convenient console management access via Java viewer (SSH / Telnet) or third-party clients such as PuTTY Easy console port access via Java viewer and Sun Solaris ready (“break-safe”) Multiple users can simultaneously access the same port – up to 16 connections per port Support Modbus gateway to convert between Modbus TCP and Modbus RTU / ASCII protocols Hardware Redundant power input (power jack and terminal block) for fail-safe power Surge protection for serial, Ethernet, and power DIN-rail mounting, wall mounting, rack mounting, and desktop installation available Supports baud rates of 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230.4k, 460.8k, 921.6k bps Security Supports secured login from browsers with TLS 1.2 data encryption and RSA 2048-bit certificates Configurable user permissions for port access and control Local and remote authentication and login Third-party authentication (e.g. RADIUS) IP address filter for security protection System Management Browser access with an intuitive GUI design Web-based quick setup wizard for fast configuration Terminal-based access with a menu-driven UI via Telnet / SSH Online / Offline detection of connected serial devices (including terminal blocks) – automatically sending event notifications when the devices are offline (e.g. power failure) for device status monitoring System event logs and port logs will be saved to an internal memory or Syslog server SNMP agent (v1 / v2c) Event notification – supports notification of SMTP email and SNMP Trap (v1 / v2c) Backup / Restore system configuration and upgradeable firmware 64 KB port buffer prevents data loss when the network is down NTP for time server synchronization Multi-language web-based GUI