https://avyannatech.com

AVYANNA-LOGO-Final_PNG
Menu

2-Port RS-232/422/485 Modbus Gateway

MPN: AT-42M

Product
Product 1 Product 2 Product 3 Product 4 Product 5 Product 6

Features and Benefits

  •  1 x 10/100 Mbps Ethernet port
  • Built-in 8-kV ESD protection for all serial signals
  • Software-selectable RS-232/422/485-2w/485-4w communication
  • Integrates Modbus TCP and Modbus RTU/ASCII networks
  • Supports up to 10 connections per serial port under Modbus client mode

Certifications

Datasheet
Get A Quote
  • Overview
  • Specifications
Contact Sales

Avyanna AT-42M — RS-232/422/485 Modbus Gateways
The Avyanna AT-4xM Series are industrial-grade Modbus gateways designed to bridge RS-232/422/485 serial devices with Ethernet networks using Modbus TCP/IP. Available in 1-, 2-, and 4-port configurations, these gateways provide flexible connectivity and enable seamless integration of legacy serial equipment into modern IP-based control systems.
Featuring robust galvanic (2.5 kV) and optical isolation, along with built-in 1.5 kV magnetic isolation, the gateways ensure reliable and noise-free data transmission in harsh industrial environments. The devices support both Modbus RTU and Modbus ASCII protocols in client/server modes, making them compatible with a wide range of industrial equipment.
Compact, rugged, and DIN-rail mountable with IP54-rated metal enclosures, these gateways are ideal for demanding industrial applications requiring reliable, scalable serial-to-Ethernet communication.

    Applications:
  • Industrial Automation
  • Remote Equipment Management
  • Building Management Systems (BMS)
  • SCADA Systems
  • Transportation & Utilities

    • Ethernet Communications
    Speed 10/100Base-T
    Protection Built-in 1.5 k VDC magnetic isolation
    Serial Communications
    Port Type RS-232/422/485, software selectable
    No. of Ports AT-41M: 1
    Port Connector DB9 & Terminal Block
    Data Bits 8, 9 ( Including Parity )
    Stop Bits 1 or 2
    Software
    Driver Support Windows 10/11
    Configuration Windows Utility, Web-based
    Operation Modes Modbus RTU Client/Server mode
    Modbus ASCII Client/Server mode
    Protocols ICMP, ARP, DHCP, UDP, TCP/IP,
    TCP/IP, IPV4, HTTP, Modbus TCP/IP
    Mechanics
    Dimensions(W x H x D AT-41M: 28.50* 78.00*126.80
    AT-42M: 28.50* 128.00*175.60
    AT-44M: 28.50* 128.00*175.60
    Enclosure Metal
    Mounting DIN-rail
    IP Rating IP54
    Resources Content
    Model Content

    Specifications

    Specification Tabs
    General
    Electrical
    Environmental
    Mechanical
    Inputs & Outputs
    Features
    Country of OriginIndia
    CertificationsROHS
    Operating VoltageDC 9V-36V
    Power Consumption4.2 W@12V, 4.8 W@24V
    Logic Level 1 (Min.)6V
    Logic Level 0 (Max.)5V
    Isolation Voltage1500 VDC
    Operating Temperature0°C to 60°C
    Operating Humidity20% - 95% RH (non-condensing)
    Storage Temperature0°C to 75°C
    Mechanical Life Expectancy2 × 10⁷ operations
    Electrical Life Expectancy5 × 10⁴ operations
    Mounting TypeDin Rail Mounting
    Enclosure MaterialABS
    Enclosure Protection ClassIP40
    Enclosure DimensionsW: 90mm, L: 70mm, H: 110mm
    Weight190g
    Type of InputsSinking
    Contact MaterialAgSnO2, AgNi
    Contact Rating5A 250VAC/30VDC
    Grouping8+1 Common
    IndicatorPower ON, Ethernet, Digital input/output status LED's
    Configuration ToolWeb Server Configuration
    Reset FunctionYES