Passive RS232 Isolation
Provides photoelectric isolation for TXD, RXD and GND signals in an RS232 connection.
DT-9011
Passive RS232 Photoelectric Isolator
Protect point-to-point RS232 connections with passive 5000V photoelectric isolation and surge protection.
The DTECH DT-9011 isolates RS232 TXD, RXD and GND signals through DB9 female-to-male connections for protected point-to-point serial communication.
Hover to zoomDTECH DT-9011 passive RS232 photoelectric isolator on a pure white background
RS232 SignalsTXD / RXD / GNDPoint-to-point isolation
Isolation5000VPhotoelectric isolation
Transfer Rate300–912600 bpsAuto-sensing serial rate
Port Protection15kV ESD600W surge protection
TransmissionUp to 5 mSource-specified distance
Product Overview
A practical path for bringing installed serial equipment into modern industrial data networks.
The DT-9011 is a passive RS232 photoelectric isolation protector for asynchronous point-to-point serial communication. It isolates TXD, RXD and GND signals to help protect the connected RS232 equipment from electrical interference.
Its model-matched DB9 female and DB9 male connectors provide an inline installation format, while the source specifies 5000V isolation, 15kV ESD protection and 600W surge protection on the RS232 port.
Key Features
Core capabilities selected for reliable integration, flexible deployment and efficient maintenance.
Protected Serial Link
The source specifies 600W surge protection and 15kV ESD protection for the RS232 port.
Automatic Rate Sensing
Supports source-specified transfer rates from 300 to 912600 bps with automatic serial-rate sensing.
Inline DB9 Connections
Uses DB9 female and DB9 male serial connectors for point-to-point RS232 equipment links.
Industrial Applications
Explore practical deployment scenarios for this DTECH industrial connectivity product.
Industrial Automation
Protect point-to-point serial connections between controllers, computers and industrial equipment.
Data Acquisition
Isolate RS232 instruments and data-collection equipment from electrical disturbance.
System / Network Architecture
See how this product fits into an industrial serial communication network.
RS232 deviceTXD, RXD and GND serial signals
Serial data
Protected branches
RS232 deviceProtected point-to-point DB9 serial connection
Technical Specifications
Verified configuration details for engineering review and product selection.
Verified Specifications
- Model
- DT-9011
- Standard
- EIA RS-232
- Working mode
- Asynchronous, point to point
- Isolated signals
- TXD, RXD, GND
- Transfer rate
- 300–912600 bps, auto-sensing serial signal rate
- Transmission distance
- 5 m
- Isolation voltage
- 5000V
- RS232 protection
- 600W surge protection; 15kV ESD protection
- Port type
- DB9 female and DB9 male
Related Products
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Frequently Asked Questions
Verified answers for product selection and project planning.
What does the DT-9011 isolate?
The DT-9011 isolates RS232 TXD, RXD and GND signals for asynchronous point-to-point serial communication.
What isolation and protection does it provide?
The legacy product page specifies 5000V isolation, 600W surge protection and 15kV ESD protection for the RS232 port.
Which connectors are used?
The source specifies DB9 female and DB9 male port types, and the verified product image shows the inline DB9 connector arrangement.
Need Help Selecting the Right Product?
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