Structured Manufacturing Data (2026)

Ethernet Interface

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Ethernet Interface used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Ethernet Interface is characterized by the integration of RJ45 Connector and Ethernet PHY Chip. In industrial production environments, manufacturers listed on CNFX commonly emphasize PCB (Printed Circuit Board) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A hardware component that provides Ethernet connectivity for data communication in industrial automation systems.

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Product Specifications

Technical details and manufacturing context for Ethernet Interface

Definition
The Ethernet Interface is a critical component within a Modbus Gateway that enables network connectivity via Ethernet protocols. It serves as the physical and data link layer interface that allows the gateway to communicate with other devices over Ethernet networks, facilitating the transmission of Modbus TCP/IP messages between industrial control systems and supervisory systems.
Working Principle
The Ethernet Interface converts electrical signals from the gateway's internal circuitry into Ethernet frames following IEEE 802.3 standards. It handles physical layer signaling, media access control (MAC), and provides the necessary hardware for RJ45 connector connectivity. When integrated into a Modbus Gateway, it enables the conversion between Modbus RTU/ASCII serial protocols and Modbus TCP/IP over Ethernet networks.
Common Materials
PCB (Printed Circuit Board), RJ45 connector, Ethernet PHY chip, Magnetics module
Technical Parameters
  • Data transfer rate, typically 10/100/1000 Mbps for industrial Ethernet interfaces (Mbps) Customizable
Components / BOM
  • RJ45 Connector Part
    Provides physical connection for Ethernet cables with 8P8C configuration
    Material: plastic with gold-plated contacts
  • Ethernet PHY Chip Part
    Physical layer transceiver that handles analog signal transmission and reception
    Material: semiconductor silicon
  • Magnetics Module
    Provides electrical isolation and signal conditioning through transformers
    Material: ferrite core with copper windings
  • LED Indicators Part
    Visual status indicators for link activity and network speed
    Material: LED chips with plastic housing

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ethernet Interface.

Ethernet Port LAN Interface Network Interface industrial automation Ethernet interface Ethernet PHY chip hardware component RJ45 connector industrial PCB magnetics module Ethernet board data communication interface for automation

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Modbus Gateway
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (non-fluid component)
other spec: IP20 rating, 10/100/1000 Mbps data rate
temperature: -40°C to 85°C
Media Compatibility
✓ Control cabinets ✓ PLC enclosures ✓ Industrial networking panels
Unsuitable: Outdoor environments without proper IP-rated housing
Sizing Data Required
  • Network speed requirements (10/100/1000 Mbps)
  • Number of required ports
  • Mounting type (DIN rail, panel, etc.)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Physical connector degradation
Cause: Repeated mating cycles, mechanical stress, corrosion from environmental contaminants, or improper handling leading to bent pins, worn contacts, or broken latches.
Link instability or packet loss
Cause: Electrical interference (EMI/RFI), cable damage (kinks, crushing, or exceeding bend radius), poor termination, or incompatible/outdated network driver firmware causing signal integrity issues.
Maintenance Indicators
  • Intermittent or flickering link status LED on the network interface, indicating unstable physical connection.
  • Audible clicking or popping from the Ethernet port or connected cable during data transmission, suggesting electrical arcing or poor contact.
Engineering Tips
  • Implement proper cable management: Use strain relief, avoid tight bends exceeding the cable's minimum bend radius, and secure cables away from heat sources and moving equipment to prevent physical damage and EMI.
  • Regularly update and validate firmware/drivers: Schedule updates during maintenance windows, use manufacturer-recommended versions, and perform link integrity tests after updates to ensure compatibility and optimal performance.

Compliance & Manufacturing Standards

Reference Standards
ISO/IEC 8802-3:2021 (Ethernet standard) ANSI/TIA-568.2-D (Structured cabling) CE marking (EU EMC Directive 2014/30/EU)
Manufacturing Precision
  • Connector pin alignment: +/-0.1mm
  • PCB trace width: +/-10% of nominal
Quality Inspection
  • Bit Error Rate Test (BERT)
  • Electromagnetic Compatibility (EMC) testing

Factories Producing Ethernet Interface

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of this Ethernet interface in industrial systems?

This Ethernet interface provides reliable wired network connectivity for data communication between industrial automation devices, controllers, and systems, ensuring stable data transmission in manufacturing environments.

What components are included in the BOM for this Ethernet interface?

The bill of materials includes an Ethernet PHY chip for physical layer signaling, LED indicators for status monitoring, a magnetics module for signal isolation and filtering, and an RJ45 connector for cable connection.

How does the magnetics module enhance this Ethernet interface's performance?

The magnetics module provides electrical isolation, reduces electromagnetic interference (EMI), filters noise, and ensures proper impedance matching, which improves signal integrity and protects connected equipment in industrial settings.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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