RS232-ESD9A FTDI USB to RS232 Adapter with 9 LED Monitoring and ESD Protection

RS232-ESD9A FTDI USB to RS232 Adapter with 9 LED Monitoring and ESD Protection

No.RS232-ESD9A

The flykantech.com RS232-ESD9A is a 1-Port USB to RS232 Adapter based on the reliable FT232RL chipset, designed for industrial serial communication. It features 9 LED indicators for real-time signal monitoring, ESD protection up to 15kV (IEC 61000-4-2), and surge-resistant circuitry for stable operation. Compatible with Windows, macOS, and Linux, it provides plug-and-play connectivity for automation, manufacturing, and data acquisition systems.

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Overview — RS232-ESD9A FTDI USB to RS232 Adapter with 9 LED Monitoring and ESD Protection

The flykantech.com RS232-ESD9A 1-Port FTDI USB to RS232 Adapter, featuring the FT232RL Chipset, is designed for industrial serial communication applications where reliability and stable performance are essential. It is suitable for Automation Systems, PLC Controllers, CNC Equipment, Data Acquisition Systems, Embedded Devices, and Manufacturing Environments requiring secure RS232 connectivity. Built for professional use, this adapter delivers dependable long-term operation in demanding industrial conditions.

Equipped with Real-Time Serial Signal Monitoring, the RS232-ESD9A features 9 LED indicators (TXD, RXD, RTS, CTS, DSR, DTR, RI, CD, PWR) to provide instant visual feedback on communication status. These LEDs help users monitor data transmission, identify connection issues, and simplify troubleshooting during installation and maintenance. With ESD Protection Up to 15kV (IEC 61000-4-2), the adapter helps protect connected devices against electrostatic discharge damage and improves communication stability in electrically sensitive environments.

The USB-powered RS232-ESD9A requires no external power supply and supports plug-and-play installation across Windows, macOS, and Linux systems. Whether connecting legacy RS232 equipment or integrating serial devices into modern computers, this FTDI-based USB serial adapter provides reliable and efficient communication for industrial, engineering, and professional applications.

What stands out — RS232-ESD9A FTDI USB to RS232 Adapter with 9 LED Monitoring and ESD Protection

  • ■ USB to Straight-Through RS232 Serial Adapter
  • ■ Supports data transfer rates from 5 bps to 921.6 kbps
  • ■ Equipped with 9 x Data Status Monitoring LEDs
  • ■ Powered directly through an available USB port
  • ■ Built-in ESD protection (8kV–15kV, IEC 61000-4-2)
  • ■ Provides dual buffers for stable upstream and downstream data transmission
  • ■ Supports remote wake-up and power management control
  • ■ Compatible with Windows, macOS, and Linux

Technical specifications — RS232-ESD9A FTDI USB to RS232 Adapter with 9 LED Monitoring and ESD Protection

ModelRS232-ESD9A
Connector Type(s)
Interface Connectors1 - USB Type-A USB 2.0 (480Mbps) / 1 - DB-9 (9 pin, D-Sub)
Environmental
Operating Temperature0°C to 60°C
Storage Temperature-20°C to 80°C
Humidity0~65% RH
Hardware
Ports1
InterfaceSerial
Bus TypeUSB-A
Port StyleCable Adapters
Industry StandardsUSB 1.1/2.0, RS232
Chipset IDProlific - PL2303-GC
Performance
Serial ProtocolRS-232
Max Baud Rate921.6 Kbps
Data Bits5, 6, 7, 8
FIFO512 Bytes
Flow ControlNone, Xon/Xoff, RTS/CTS, DTR/DSR
ParityOdd, Even, Mark, Space, or None Parity Modes
Stop Bits1, 1.5, 2
Power
Power SourceUSB-Powered
OS Compatibility
Windows7, 8.1, 10, 11
Windows Server2008 R2, 2012 R2, 2016, 2019, 2022
macOS10.11 and 10.15, 11.0, 12.0, 13.0, 14.0
Linux2.6.x and up - LTS Versions only
Warranty24 months
CertificationCE · FCC · RoHS
OEM / ODMSupported

DOWNLOAD — RS232-ESD9A FTDI USB to RS232 Adapter with 9 LED Monitoring and ESD Protection

Datasheets, drivers and firmware for this model. Files open in a new tab.

RS232-ESD9A Datasheet (English V1.0)PDF · 108 KB

Frequently asked questions

What is the flykantech.com RS232-ESD9A USB to RS232 Adapter?

The flykantech.com RS232-ESD9A is an industrial FTDI USB to RS232 Adapter designed to connect modern computers with RS232 serial devices. It uses the FT232RL Chipset to provide reliable USB-to-Serial conversion for professional and industrial applications.

What chipset is used in the RS232-ESD9A?

The RS232-ESD9A uses the FTDI FT232RL Chipset, providing stable serial communication, wide operating system compatibility, and reliable performance for USB Serial Adapter applications.

What applications is the RS232-ESD9A suitable for?

The RS232-ESD9A is suitable for Industrial Automation, PLC Controllers, CNC Equipment, Embedded Systems, Data Acquisition Systems, and other professional applications requiring reliable RS232 communication.

Does the RS232-ESD9A provide ESD protection?

Yes. The RS232-ESD9A features ESD Protection up to 15kV according to IEC 61000-4-2 standards, helping protect connected equipment from electrostatic discharge damage and improving communication stability in industrial environments.

Which operating systems are supported by the RS232-ESD9A?

The RS232-ESD9A supports Windows, macOS, and Linux operating systems. The official FTDI Driver is available for download to simplify installation and configuration.

What do the 9 LED indicators on the RS232-ESD9A show?

The RS232-ESD9A features 9 LED indicators including TXD, RXD, RTS, CTS, DSR, DTR, RI, CD, and PWR. These indicators provide Real-Time Serial Signal Monitoring for communication status checking and troubleshooting.

Why choose the RS232-ESD9A over a standard USB Serial Adapter?

The RS232-ESD9A combines the FTDI FT232RL Chipset, Real-Time LED Signal Monitoring, and ESD Protection to deliver enhanced reliability for industrial, engineering, and professional RS232 communication applications.

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