https://avyannatech.com

RS 232 Serial Port
Isolator

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RS-232 ISOLATOR / 1301

RS 232 serial port Isolator is primarily intended to provide Isolation between expensive computers or systems from the serial device, so that they are protected against any inadvertent damage due to electrical disturbances.

Specifications of RS232 to RS485 Converter

Specification Tabs
Physical Specifications
Electrical Specifications
Warranty
Environmental Specification
Dimensions (LxWxH)L= 7.9cm, W= 3.2cm, H= 6.6cm
Weight188 g
Input VoltageDC 9V-36Vtd>
Number of ports2
Port 1RS-485 : D+, D-, GND
Port 2RS-485 : D+, D-, GND
Serial StandardsRS-485 compatible with EIA/TIA
Reverse Voltage/ESD Protection for RS-485Yes
Surge SuppressionMethod: TVS, Rating: 6.5V, Bi-Directional, 600W peak power dissipation, Lines Protected: Data Lines (Input, Output)
Warranty12 months
Transmission modeBi-Directional, Half-Duplex
ProtocolModbus RTU/ASCII
Baud rate Supported0 to 128000 bps (self-adaptive)
Isolation for serial portsOptical Isolation
RS232 to RS485 converter

RS232 to RS485 Converter – Reliable Serial Port Communication

Avyanna Tech’s RS232 to RS485 Converter ensures seamless and efficient serial communication across industrial and commercial environments.

An RS232 to RS485 converter is a compact device used to bridge RS232 serial ports with RS485 communication networks. RS485 supports longer distances and multiple devices on a single bus, making it ideal for modern industrial automation and control systems.

 

Key Features of Our Serial Port Isolator

Bidirectional Conversion: Converts RS232 to RS485 and vice versa

Long-Distance Communication: Supports up to 1200 meters

Optical Isolation & Surge Protection: For safe and stable data transmission

Easy Installation: Plug-and-play design with no external power needed (in most models)

Auto Data Direction Control: No need for software flow control

Industrial Grade Build: Works reliably in harsh conditions

Supports 3-Wire: RS232 Handles TXD, RXD, and GND for standard RS232 communication.

Maintenance-Free: Durable solid-state design with no moving parts.

Applications of serial port converter

Factory automation
PLC Communication
SCADA Systems
Building Automation Systems
CNC Machines
Factory automation
Energy Monitoring
Security & Access Control Systems
Transportation and Traffic Systems
POS Systems

Why Choose Our RS232 to RS485 Converter?

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High Compatibility: Supports all standard RS232/RS485 devices

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Durable Design: Built for industrial use with wide temperature range

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Cost-Effective: Affordable without compromising on performance

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Local Support: Technical assistance and warranty available in India

Frequently Asked Questions

How does an RS232 to RS485 converter work?

An RS232 to RS485 converter is a type of serial port converter that enables communication between devices using different serial standards. It converts the single-ended RS232 signals into differential RS485 signals. RS232 is typically used for short-distance, point-to-point communication, while RS485 supports long-distance, multi-drop networks. The converter handles signal level translation, ensuring that RS232-equipped devices can reliably communicate over RS485 networks without data loss or signal interference.

An RS232 Serial Port Isolator is used to protect devices and data communication systems from electrical surges, ground loops, and noise interference. It electrically isolates the RS232 signals between connected devices, ensuring stable and safe data transmission. When used alongside an RS232 to RS485 converter, it enhances system reliability by preventing damage to sensitive components and minimizing communication errors, especially in industrial environments.

The key difference lies in the type of communication they support. An RS232 to RS485 converter is designed to convert RS232 signals (used for point-to-point communication over short distances) into RS485 signals (which support long-distance, multi-device communication on a differential bus). RS232 converters work with single-ended signals, while RS485 converters handle differential signals, offering better noise immunity and longer communication ranges. Using an RS232 to RS485 converter bridges the gap between these two protocols, allowing legacy RS232 devices to connect to modern RS485 networks.

RS-232 connections often face issues like ground loops, electrical noise, voltage spikes, and signal loss over long distances. These problems can cause communication errors or damage to connected devices. A serial port isolator protects against these issues by electrically isolating the RS-232 signals, preventing interference and surge-related damage.

When used with a serial port converter, such as an RS232 to RS485 converter, the isolator ensures safe, stable, and reliable data transmission—especially in harsh industrial environments where signal integrity is critical.