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Avyanna AT-44M — RS-232/422/485 Modbus Gateways

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Avyanna AT-44M 4-Port RS-232/422/485 Modbus Gateway

Product Description

Avyanna AT-44M — 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

Product Specifications

ManufacturerAvyanna Tech
Model / MPNAT-44M
Product Type4-Port RS-232/422/485 Modbus Gateway
Ethernet1 × 10/100Base-T
Ethernet ProtectionBuilt-in 1.5 kVDC magnetic isolation
Serial InterfacesRS-232/422/485, software selectable
Serial Ports4
Serial ConnectorDB9 & Terminal Block
Data Bits8, 9 (including parity)
Stop Bits1 or 2
ConfigurationWindows Utility, Web-based
Operation ModesModbus RTU Client/Server; Modbus ASCII Client/Server
ProtocolsICMP, ARP, DHCP, UDP, TCP/IP, IPv4, HTTP, Modbus TCP/IP
Modbus IntegrationModbus TCP, Modbus RTU, Modbus ASCII
ConnectionsUp to 10 connections per serial port under Modbus client mode
Serial Signal ProtectionBuilt-in 8-kV ESD protection
Operating Voltage9–36 VDC
Power Consumption4.2 W @ 12 V; 4.8 W @ 24 V
Operating Temperature0°C to 60°C
Operating Humidity20%–95% RH, non-condensing
MountingDIN rail
EnclosureMetal
IP RatingIP54
CertificationRoHS
Country of OriginIndia

Product Features

  • 4-Port Serial Connectivity: Four software-selectable RS-232/422/485 serial interfaces for flexible industrial integration.
  • Ethernet Gateway: 1 × 10/100Base-T Ethernet port bridges serial Modbus devices to IP networks.
  • Protocol Conversion: Integrates Modbus TCP with Modbus RTU and Modbus ASCII networks.
  • Multi-Connection Support: Supports up to 10 connections per serial port under Modbus client mode.
  • Industrial Protection: Built-in 8-kV ESD protection for serial signals and 1.5 kVDC magnetic isolation on Ethernet.
  • Flexible Configuration: Windows utility and web-based configuration with Modbus RTU/ASCII Client/Server modes.
  • Rugged Construction: DIN-rail mountable metal enclosure with IP54 protection.
  • Wide DC Supply: Operates from 9–36 VDC for industrial installations.

Other Information

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

15-day warranty, subject to TwoElectrons warranty terms and conditions.

Shipping & Returns Policy

Shipping and returns are subject to the standard TwoElectrons Shipping & Returns Policy.

Country of Origin: India

Warranty Information

15 Days Seller Warranty:

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of TwoElectrons customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What Voids Warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Shipping & Returns Policy

Shipping Policy:
  • Delivery time within metro cities in India is 1-3 days; for other locations, it is 3-7 days. Delivery varies based on location and courier service.
  • If the item is out of stock, the estimated delivery time is 7-14 days from order confirmation. Delivery varies based on location and courier service.
Return & Refund Policy:
  • Return window: 7 days from receipt unless stated otherwise.
  • No refunds or replacements after the return window.
  • Returns are accepted only for non-working or damaged products.
  • Initiate return requests from here: Return Request or contact us at 09831070550.
  • Refunds are processed within 3-4 working days after inspection and approval.

Main Features

  • 1 x 10/100 Mbps Ethernet port
  • Integrates Modbus TCP and Modbus RTU/ASCII networks
  • Supports up to 10 connections per serial port under Modbus client mode
  • Software-selectable RS-232/422/485-2w/485-4w communication
  • Built-in 8-kV ESD protection for all serial signals
SKU: 2EEN20172
₹ 25,600.00
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Lead time

Quantity Dispatch
1-10 units 1 to 3 days (metro cities)
3 to 7 days (others location)
>10 units To be negotiated
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