ATEN 2-Port RS-232/422/485 Secure Device Server with PoE

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 SN3402P Secure Device Server provides simple, fast serial-to-Ethernet connectivity, allowing your PC to remotely allowing users to remotely access serial RS-232/422/485 devices from a PC located anywhere. With various reliable features, the SN3402P is ideal for commercial and industrial process control applications.

Surge and Isolation Protection Ensure System Stability
Surge protection is a vital aspect of any facility’s coordinated electrical protection to ensure safe and reliable operation. To this end, in addition to 1.5kV magnetic isolation protection for Ethernet signals, the SN3402P Secure Device Server features surge protection for serial, Ethernet, and power that protect against voltage spikes or uncontrolled increase in current. Furthermore, as well as industrial safety standards compliance, they are also tested to meet IEC 61000-4 surge wave form requirements to ensure system stability and reliability.

Level-up Device Security at Every Stage
The growing numbers of cyber attacks in the industrial IoT era has the potential to bring down systems and cause huge losses of time and money. In order to avoid potential vulnerability risks, enterprises need a multi-layered defense system to ensure secure data transmissions that include regular firmware upgrades, as well as various encrypted forms of authentication and access control. The SN3402P secure serial-to-Ethernet solution is equipped with security functions at every level, including network access control and user authentication, data integrity and confidentiality. Furthermore, with an operation mode available for advanced security functions, you can acquire any field data needed and provide frontline protection.

Comprehensive Secure Operation Modes
The SN3402P offers a broad choice of operation modes to help different types of serial devices to be seen on the network including Real COM, TCP, Serial Tunneling, Console Management and UDP. With each operation mode the SN3402P is equipped with advanced secure functions to assist users in streamlining operations and ensuring serial data is securely transmitted.

Seamless and Cost-Effective Modbus Gateway
The SN3402P can be used as standard Modbus gateway for conversion between Modbus TCP and Modbus RTU / ASCII protocols. It can integrate Modbus serial slave devices seamlessly into an existing Modbus TCP network, thereby making them accessible to serial master devices.

Easy Setup with Web Console and Telnet/SSH Console
The SN3402P offers a 3-step setup web console for fast installation. Its browser access is supported via intuitive multi-language features that facilitate a quick setup and control of the devices in just three configuration steps to activate the application. This makes setup simple and fast, and users can complete it in an average of only one minute. Moreover, for bandwidth-sensitive applications, a Telnet/SSH console is also available as a low-bandwidth solution.

Easy to Troubleshoot
ATEN understands the seriousness of data loss and breaches. The SN3402P features 64 KB port buffering to prevent data loss in case a network is down, and event notifications will be sent automatically by SMTP email and SNMP Trap if serial devices go offline due to power failure, or trigger a user - defined error. Moreover, system event logs are available to record and track operation history, and can be saved to internal memory or Syslog server, so you can retrieve data for monitoring and troubleshooting at any time.

Target Applications
The SN3402P enables instant networking of serial devices and can be deployed in a variety of commercial applications and industrial process automation environments that require serial-to-Ethernet connectivity. These include POS, access control, SCADA systems, environment monitoring, sensor monitoring, device management, remote site management, and more.

Versatile Mounting Options
The SN3402P can be flexibly mounted in various installation environments, so you can easily configure it to your workplace. Mounting options include wall, desktop, DIN rail mounting, or rack mounting (with optional kit VE-RMK1U) as required.

ATEN 2-Port RS-232/422/485 Secure Device Server with PoE. Power source type: DC, PoE, Power consumption (max): 1.3 W, Power consumption (typical): 1.19 W. LED indicators: Power, Status. Width: 117 mm, Depth: 98 mm, Height: 26 mm. Product colour: Black, Housing material: Metal, Safety: UL 60950-1, UL 62368-1. Number of foot pads: 4 pc(s)

How to use

Connect the SN3402P to your Ethernet LAN and supply power via PoE or an appropriate power source. Attach serial devices to the RS-232/422/485 ports and choose the required operation mode (Real COM, TCP, Serial Tunneling, Console Management, or UDP) using the web console or Telnet/SSH. For Modbus devices, enable the Modbus gateway function to convert between Modbus TCP and Modbus RTU/ASCII protocols so serial slaves become accessible on a Modbus TCP network. Configure network access, user authentication, and encryption settings according to your security policy, then monitor device status and events using the built-in logging and notification features.

Recommendations

Place the device in a grounded installation environment and verify proper surge protection and grounding at the site. Keep firmware up to date and apply the recommended authentication and encryption settings. Use the 64 KB port buffer and event notifications to catch and log transient network issues, and store logs on a Syslog server for long‑term monitoring and troubleshooting.