Serial Interface Module for Device Servers

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. The module typically features multiple channels (1–4) to accommodate varying numbers of connected devices, and supports standard interface types including RS-232, RS-422, and RS-485, adhering to TIA/EIA-232, TIA/EIA-422, and TIA/EIA-485 standards. Data rates range from 300 to 115200 bps, with isolation voltage of 2.5–3.0 kV DC to protect against ground loops and surges. Designed for industrial environments, it operates within a temperature range of -40 to +85 °C (storage and operating) and humidity of 5–95% RH (non-condensing). The module offers ingress protection ratings from IP30 to IP65, depending on the housing, and is powered by a supply voltage of 12–48 V DC, consuming 1–5 W. Connector types include DB9, RJ45, and terminal blocks, and the compact dimensions (50 x 80 x 25 mm) allow for DIN rail or panel mounting, with a weight of 100–200 g. The module is constructed with a PCB, integrated circuits, connectors, and a plastic or metal housing. For procurement, verify model-specific values and standards with the legal manufacturer or supplier, as these are reference ranges.

Working Principle

The module receives serial data streams from connected devices through physical serial ports. It processes the data using protocol conversion logic, often implemented via a microcontroller or FPGA, and transmits the converted data over the Device Server's network interface. The module includes signal conditioning, voltage level conversion, and error-checking mechanisms to ensure reliable communication between serial devices and the network infrastructure. It supports multiple channels and interface standards, with isolation and protection features to maintain signal integrity in industrial settings.

Common Materials

PCB (Printed Circuit Board), Integrated Circuits, Connectors, Plastic/ Metal Housing

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Channels	1–4	Select based on number of connected devices.
Interface Standard	RS-232/422/485	Determines electrical signaling and wiring.TIA/EIA-232, TIA/EIA-422, TIA/EIA-485
Data Rate	300–115200 bps	Maximum baud rate supported.
Isolation Voltage	2.5–3.0 kV DC	Protects against ground loops and surges.
Operating Temperature	-40–+85 °C	Industrial grade; wider range for harsh environments.
Storage Temperature	-40–+85 °C	Non-operating condition.
Humidity	5–95 % RH	Non-condensing.
Ingress Protection	IP30–IP65	Higher IP for dusty or wet environments.IEC 60529
Supply Voltage	12–48 V DC	Typical industrial power rails.
Power Consumption	1–5 W	Depends on channels and isolation.
Connector Type	DB9, RJ45, Terminal Block	Match with device server and peripherals.
Dimensions (W x D x H)	50 x 80 x 25 mm	Compact size for DIN rail or panel mounting.
Weight	100–200 g	Lightweight for easy installation.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

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.

Applied To / Applications

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

Device Server

View system integration details

Manufacturers of Serial Interface Module

Manufacturer profiles associated with Serial Interface Module.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

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Frequently Asked Questions

What is the purpose of a Serial Interface Module?

It provides serial communication interfaces to connect peripheral devices to a Device Server, converting serial data to network-compatible formats for remote monitoring and control.

Which interface standards are supported?

The module supports RS-232, RS-422, and RS-485, referencing TIA/EIA-232, TIA/EIA-422, and TIA/EIA-485 standards. Verify the specific standard for your model.

What are the typical operating conditions?

It operates in -40 to +85 °C, 5-95% RH non-condensing, with supply voltage 12-48 V DC and power consumption 1-5 W. Ingress protection ranges from IP30 to IP65.

How do I select the right module?

Consider the number of connected devices (channels), required interface standard, data rate, isolation voltage, and environmental conditions. Always verify specifications with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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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)

Serial Interface Module

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards