Black Box LES400 Series Industrial Serial Modbus Device Server - 1-Port - LES431A-R2

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    • Black Box Corporation

    Black Box LES400 Series Industrial Serial Modbus Device Server - 1-Port - LES431A-R2

      General Information Manufacturer: Black Box Corporation Manufacturer Part Number: LES431A-R2 Manufacturer Website Address: http://www.blackbox.com Brand Name: Black Box Product Series:... Read more

      34 in stock Order today, shipped today

      $286.09

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        • Warranty by Manufacturer
        • Shipped today? Order within: Sep 03, 2026 17:00:00 -0700
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        SKU: 9125546

        General Information

      • Manufacturer: Black Box Corporation
      • Manufacturer Part Number: LES431A-R2
      • Manufacturer Website Address: http://www.blackbox.com
      • Brand Name: Black Box
      • Product Series: LES400
      • Product Name: LES400 Series Industrial Serial Modbus Device Server - 1-Port
      • Marketing Information:
        • Routes Modbus traffic based on Modbus ID, and remaps conflicting Modbus IDs.
        • Offers Modbus messaging priority control, selectable by source or function code.
        • Features a built-in Web server and easy-to-use management software.
        • It can be easily integrated into most Modbus network configurations.
        • Converts ASCII to RTU as well as ASCII or RTU to Modbus TCP.
        • Features a DB9 port for serial connections.
        • Equipped with a 10-/100-Mbps port for TCP connectivity.
        • Boasts high throughput with low latency.
        • Mounts on a DIN-rail or wall. Includes a DIN mounting clip and spring.

        The LES431A-R2 series Modbus gateway is a bi-directional gateway for integrating new and existing Modbus/RTU and Modbus/ASCII serial devices to operate with newer TCP/IP networked-based devices. The LES431A-R2 gateway features one independent Ethernet port and MAC address. It provides a simple and cost-effective way to bring remote management and data accessibility to thousands of older Modbus devices that cannot otherwise connect to a network. The LES431A-R2 allows users to select client or server operation mode for each serial port. It enables an Ethernet client to control serial servers, and also allows a serial client to control Ethernet servers.

        Configuration can be done via Black Box Windows Configuration Utility, Telnet Console, or Web Browser so you can improve productivity and cut down on the amount of time required to troubleshoot a serial device on a factory floor or in a remote location. Configure devices, upgrade firmware, and more - all this from the comfort of your office.


      • Product Type: Device Server
      • Technical Information

      • Connectivity Technology: Wired
      • Data Link Protocols: TCP/IP
      • Media & Performance

      • Media Type Supported: Twisted Pair
      • Network & Communication

      • Ethernet Technology: Fast Ethernet
      • Network Standard: 10/100Base-T
      • Interfaces/Ports

      • Network (RJ-45): Yes
      • Serial Port: Yes
      • Management Port: Yes
      • Total Number of Network Ports: 1
      • Number of Network (RJ-45) Ports: 1
      • Number of Serial Ports: 1
      • Power Description

      • Input Voltage:
        • 9 V DC
        • 36 V DC

      • Input Voltage Range: 9 V DC - 36 V DC
      • Power Consumption: 1 W
      • Plug/Connector Type: Terminal Block
      • Physical Characteristics

      • Form Factor:
        • DIN Rail Mountable
        • Wall Mountable

      • Height: 3.4"
      • Width: 1.8"
      • Depth: 0.8"
      • Weight (Approximate): 9.88 oz
      • Miscellaneous

      • Package Contents:
        • LES400 Series Industrial Serial Modbus Device Server - 1-Port
        • DIN Mounting Clip
        • Spring

      • Compatibility:

        Compatible Devices:

        • PLC
        • Meters
        • TCP Sensors

      • Country of Origin: United States
      • TAA Compliant: Yes
      • Warranty

      • Limited Warranty: 1 Year
      • Additional Warranty Information:

        1 Year Double Diamond™ Warranty (Standard)


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