USB to RS422/RS485 Conversion
Connect a USB host to compatible RS422 or RS485 serial equipment through the same converter-cable family.
DT-5019 Series
USB to RS422/RS485 Converter Cable
Connect a USB host to RS422 or RS485 equipment with one verified cable family and three selectable cable lengths.
The DTECH DT-5019 Series converts USB to RS422 or RS485 and groups DT-5119, DT-5019 and DT-5219 as 0.5 m, 1.2 m and 2 m cable options on one product page.
Hover to zoomDTECH DT-5019 USB to RS422 and RS485 converter cable with DB9 connector on a white background
Host InterfaceUSBIntegrated USB cable
Serial InterfacesRS422 / RS485One verified converter family
Cable Options0.5 / 1.2 / 2 mDT-5119 / DT-5019 / DT-5219
PowerNo external supplySource-listed plug-and-play operation
Driver SupportWindows 7 / 8 / 10 / 11Official DT-5019 driver package is listed
Product Overview
A practical path for bringing installed serial equipment into modern industrial data networks.
The DT-5019 Series provides a USB connection for compatible RS422 or RS485 equipment. The verified legacy product page describes automatic send-data control, automatic direction sensing and operation without an external power supply.
DTECH's official USB converter cable catalog identifies the three requested variants as the same cable family differentiated by length: DT-5119 at 0.5 m, DT-5019 at 1.2 m and DT-5219 at 2 m. Keeping them on one page gives buyers one comparison point and avoids duplicate product pages.
3verified model options
Choose the model by required cable length.
0.5–2 mpublished cable range
Covers the three user-requested variants.
2serial standards
Designed for compatible RS422 and RS485 equipment.
1shared product page
One canonical page for the length variants.
Key Features
Core capabilities selected for reliable integration, flexible deployment and efficient maintenance.
Three Verified Cable Lengths
Select DT-5119 for 0.5 m, DT-5019 for 1.2 m or DT-5219 for 2 m, as listed in the official DTECH catalog.
Automatic Data Direction
The legacy source lists automatic send-data control, direction recognition and serial-signal-rate sensing.
No External Power Supply
The source describes plug-and-play operation without a separate external power supply.
Industrial Applications
Explore practical deployment scenarios for this DTECH industrial connectivity product.
Industrial Automation
Connect a USB commissioning or control host to compatible RS422 or RS485 industrial equipment.
Data Acquisition
Provide a local USB connection for compatible meters, instruments and data-collection equipment.
Building and Access Systems
Link a USB service computer to compatible RS422 or RS485 controllers during integration and maintenance.
System / Network Architecture
See how this product fits into an industrial serial communication network.
USB host computerEngineering laptop, workstation or compatible controller
Serial data
Protected branches
RS422 or RS485 equipmentCompatible PLC, meter, controller or industrial instrument
Technical Specifications
Verified configuration details for engineering review and product selection.
Model and Length Selection
- DT-5119
- 0.5 m cable
- DT-5019
- 1.2 m cable
- DT-5219
- 2 m cable
- Selection rule
- Choose the model by the required USB cable length; the three options share this product page.
Interfaces and Operation
- Host interface
- USB
- Serial interfaces
- RS422 / RS485
- Power requirement
- No external power supply required
- Data control
- Automatic send-data control and direction sensing
- Rate handling
- Automatic serial-signal-rate sensing
- Visible connector form
- USB cable to DB9 converter body; model-matched source image also shows a terminal adapter
Driver Availability
- Official driver listing
- DT-5019 / DT-5219 / DT-5119 shared USB-to-RS422/RS485 driver group
- Current listed Windows package
- Windows 7, Windows 8, Windows 10 and Windows 11
- Procurement note
- Confirm the target operating system and driver package before standardizing the cable.
Product Model Comparison
Compare verified model differences before selecting a configuration.
| Specification | DT-5119 | DT-5019 | DT-5219 |
|---|---|---|---|
| Cable length | 0.5 m | 1.2 m | 2 m |
| Host interface | USB | USB | USB |
| Serial interfaces | RS422 / RS485 | RS422 / RS485 | RS422 / RS485 |
| Official driver group | Shared family driver | Shared family driver | Shared family driver |
Engineering Resources
Use the solution architecture and technical guide to confirm this product's role before final model selection.
Solution
Serial Interface Conversion & Isolation
Plan the USB host, RS422/RS485 field interface, wiring mode, cable route and commissioning checks as one documented connection.
View Resource Technical GuideRS232 vs RS422 vs RS485
Confirm the field device's electrical interface and topology before selecting a USB serial converter cable.
View ResourceRelated Products
Explore complementary DTECH connectivity products for adjacent signal paths and network requirements.
Frequently Asked Questions
Verified answers for product selection and project planning.
Which cable length should I select?
Choose DT-5119 for 0.5 m, DT-5019 for 1.2 m or DT-5219 for 2 m. These lengths are listed in DTECH's official USB converter cable catalog.
Are DT-5119, DT-5019 and DT-5219 separate products?
They are published here as one converter-cable family because the verified difference is cable length. Use the model number that matches the required length in your inquiry.
Does this cable convert USB to both RS422 and RS485?
Yes. The verified product page and catalog identify the family as USB to RS422/RS485 converter cables. Confirm the field device wiring mode before installation.
Does the DT-5019 Series need an external power supply?
The legacy product source states that no external power supply is needed. The cable is described as plug and play, but the driver and operating-system requirements should still be checked.
Which driver should be used for the three lengths?
The official DTECH download center groups DT-5019, DT-5219 and DT-5119 under the same USB-to-RS422/RS485 driver package. Verify the target computer's operating system before deployment.
Need Help Selecting the Right Product?
Share your device interfaces, network environment and project requirements with the DTECH industrial communication team.