Structured Manufacturing Data (2026)

Serial Interface Module

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Serial Interface Module 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 Serial Interface Module is characterized by the integration of Serial Port Connector and Protocol Converter IC. 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 serial communication interfaces for connecting peripheral devices to a Device Server.

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Product Specifications

Technical details and manufacturing context for Serial Interface Module

Definition
The Serial Interface Module is an essential component of a Device Server that enables serial communication protocols (such as RS-232, RS-422, RS-485) to connect industrial equipment, sensors, controllers, and other peripheral devices. It converts serial data from connected devices into network-compatible formats for transmission over Ethernet or other network protocols, facilitating remote monitoring, control, and data acquisition in industrial automation systems.
Working Principle
The module receives serial data streams from connected devices through physical serial ports, processes the data using protocol conversion logic (often implemented via microcontroller or FPGA), and transmits the converted data over the Device Server's network interface. It typically includes signal conditioning, voltage level conversion, and error-checking mechanisms to ensure reliable communication between serial devices and the network infrastructure.
Common Materials
PCB (Printed Circuit Board), Integrated Circuits, Connectors, Plastic/ Metal Housing
Technical Parameters
  • Number of serial ports (e.g., 2, 4, 8, 16 ports) (ports) Customizable
Components / BOM
  • Serial Port Connector Part
    Physical interface for connecting serial cables from peripheral devices
    Material: metal/plastic composite
  • Protocol Converter IC
    Converts serial data to network-compatible formats and vice versa
    Material: silicon semiconductor
  • Signal Conditioning Circuit
    Ensures proper voltage levels and signal integrity for serial communication
    Material: PCB with electronic components
  • Mounting Bracket Part
    Secures the module within the Device Server chassis
    Material: steel or aluminum

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Serial Interface Module.

Serial Port Module industrial serial interface module for device servers serial communication hardware for peripheral connectivity protocol converter IC serial port module signal conditioning circuit serial interface PCB-based serial interface module manufacturing

Applied To / Applications

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

Device Server
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
voltage: 3.3V or 5V DC ±5%
humidity: 5% to 95% non-condensing
data rate: Up to 115.2 kbps (RS-232/422/485 configurable)
temperature: 0°C to 70°C (operating), -40°C to 85°C (storage)
Media Compatibility
✓ Industrial PLCs and controllers ✓ Legacy serial instruments (barcode scanners, scales) ✓ Building automation systems (HVAC, access control)
Unsuitable: High-voltage electrical substations with EMI/RFI interference exceeding 10V/m
Sizing Data Required
  • Required serial interface type (RS-232/422/485)
  • Number of simultaneous connections needed
  • Network protocol compatibility (TCP/IP, UDP, Modbus TCP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal Degradation/Intermittent Communication
Cause: Corrosion or contamination of electrical contacts due to moisture ingress, dust accumulation, or chemical exposure, leading to increased resistance and poor signal integrity.
Component Overheating/Failure
Cause: Excessive current draw, poor ventilation, or ambient temperature extremes causing thermal stress on integrated circuits, connectors, or power regulation components.
Maintenance Indicators
  • Intermittent or complete loss of data transmission despite proper configuration, often accompanied by error codes or communication timeouts in the control system.
  • Unusual heat emission from the module housing or discoloration/burning smell, indicating potential electrical overload or component failure.
Engineering Tips
  • Implement environmental controls: Ensure installation in a clean, dry, temperature-controlled enclosure with proper sealing (IP-rated if necessary) to prevent moisture, dust, and chemical contamination.
  • Adhere to electrical specifications: Use correct voltage supplies, avoid overloading communication lines, and ensure proper grounding/shielding to minimize electrical noise and thermal stress.

Compliance & Manufacturing Standards

Reference Standards
ISO/IEC 7816-3:2006 - Identification cards - Integrated circuit cards - Part 3: Cards with contacts - Electrical interface and transmission protocols ANSI/TIA-232-F-1997 - Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange DIN 41612 - Connectors for printed boards - Part 2: Two-part connectors with basic grid of 2.54 mm (0.1 in) - Detail specification for connectors with assessed quality
Manufacturing Precision
  • Connector Pin Alignment: +/-0.1mm
  • Signal Timing Jitter: +/-2% of bit period
Quality Inspection
  • Signal Integrity Test (Eye Diagram Analysis)
  • Environmental Stress Screening (Temperature Cycling and Vibration)

Factories Producing Serial Interface Module

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 Serial Interface Module?

This module provides serial communication interfaces to connect peripheral devices to Device Servers, enabling data exchange between industrial equipment and network systems through protocols like RS-232, RS-485, or TTL.

What materials are used in the construction of this module?

The module is built using a PCB (Printed Circuit Board) with integrated circuits for protocol conversion, durable connectors for serial ports, and a protective housing made of plastic or metal to ensure reliability in industrial environments.

What components are included in the Bill of Materials (BOM)?

The BOM includes a mounting bracket for secure installation, a protocol converter IC for handling communication standards, serial port connectors for device connectivity, and a signal conditioning circuit to ensure data integrity and noise immunity.

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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