RS232 to RS485 Conversion
Converts a DB9 RS232 host interface for two-wire RS485 field communication.
DT-9016
Industrial RS232 to RS485 Converter
Extend an RS232 host into three RS485 wiring branches with adaptive half-duplex communication and protected industrial interfaces.
Connect RS232 equipment to three RS485 bus connection pairs at 300–115200 bps, with source-specified RS485 transmission up to 1200 metres.
Hover to zoomDTECH DT-9016 industrial RS232 to RS485 converter on a clean white background
ConversionRS232 ↔ RS485Automatic data direction
RS485 Connections3 A/B pairsShared multi-direction bus wiring
Baud Rate300–115200 bpsAdaptive serial communication
RS485 DistanceUp to 1200 mRS232 side up to 15 m
Power Input9–30VDC9V adapter listed in the manual
Product Overview
A practical path for bringing installed serial equipment into modern industrial data networks.
The DT-9016 is an externally powered industrial converter for connecting an RS232 host to RS485 field equipment. Its eight-position terminal block provides three parallel A/B connection pairs so the shared RS485 bus can be routed in multiple directions without stacking several wires on one terminal.
DTECH's product approval specification identifies adaptive asynchronous half-duplex transmission, 300 to 115200 bps, up to 1200 metres on the RS485 side and up to 15 metres on the RS232 side. The matching English manual specifies a 9–30VDC input range and a nominal 9V adapter.
3RS485 A/B pairs
Route one shared bus toward multiple wiring directions.
115.2 Kbpsmaximum data rate
Adaptive support for common industrial serial speeds.
1200 mRS485 distance
Source-specified maximum transmission reach.
15 kVRS232 ESD protection
Specified protection for the host-side interface.
Key Features
Core capabilities selected for reliable integration, flexible deployment and efficient maintenance.
Three RS485 Wiring Pairs
Three parallel A/B terminal pairs simplify shared-bus wiring in different directions.
Adaptive Half-Duplex Operation
Automatically manages data direction for asynchronous two-wire RS485 communication.
Long-Distance Field Link
Supports source-specified RS485 transmission up to 1200 metres.
Protected Serial Interfaces
The RS232 side is specified with 15kV ESD protection and the RS485 side with TVS surge protection.
External DC Power
The matching English manual specifies 9–30VDC input and lists a 9V adapter.
Industrial Applications
Explore practical deployment scenarios for this DTECH industrial connectivity product.
Factory Automation
Connect an RS232 controller or workstation to distributed RS485 equipment.
Energy Data Acquisition
Route a shared RS485 bus toward meters and monitoring devices in different directions.
Access and Building Control
Extend serial communication between an RS232 host and RS485 access or building devices.
System / Network Architecture
See how this product fits into an industrial serial communication network.
RS232 hostComputer, controller or serial workstation
Serial data
Protected branches
Three RS485 wiring pairsOne shared two-wire RS485 bus routed toward distributed field devices
Technical Specifications
Verified configuration details for engineering review and product selection.
Communication
- Model
- DT-9016
- Product type
- Industrial RS232 to RS485 converter
- Communication mode
- Asynchronous two-wire half duplex
- Transmission rate
- 300–115200 bps
- Transmission medium
- Twisted-pair cable, conductor diameter at least 0.5 mm, or shielded cable
- RS485 transmission distance
- Up to 1200 m
- RS232 transmission distance
- Up to 15 m
- Supported nodes
- Up to 32 RS485 nodes
Interfaces, Protection and Power
- RS232 interface
- DB9 female; TXD, RXD and signal ground used for standard conversion
- RS485 interface
- Eight-position terminal block with three shared A/B pairs, ground and VDC
- RS232 protection
- 15kV ESD
- RS485 protection
- TVS surge protection; matching manual specifies 600W
- Power input
- 9–30VDC; nominal 9V adapter listed in the matching manual
- Recommended termination
- 120Ω, at least 1/4W when required by the installation
- Indicators
- Power, receive and transmit
Mechanical and Environmental
- Enclosure
- Silver aluminium housing with integrated wall-mounting flanges
- Operating temperature
- −20°C to 70°C
- Relative humidity
- 5% to 95%
- Package contents
- DT-9016 converter, DB9 cable, RS485 terminal block, 9V DC adapter and manual
Related Products
Explore complementary DTECH connectivity products for adjacent signal paths and network requirements.
Frequently Asked Questions
Verified answers for product selection and project planning.
What does the DT-9016 convert?
The DT-9016 converts a DB9 RS232 host interface for connection to two-wire RS485 field equipment.
Why does the DT-9016 provide three RS485 A/B pairs?
The three pairs are parallel connection points for the shared RS485 bus. They make it easier to route wiring in multiple directions without stacking several conductors on one terminal.
What baud-rate range does the DT-9016 support?
DTECH's product approval specification lists adaptive communication from 300 to 115200 bps.
How far can the DT-9016 transmit?
The product approval specification lists up to 1200 metres on the RS485 side and up to 15 metres on the RS232 side.
What power input does the DT-9016 use?
The matching English manual specifies a 9–30VDC input range and lists a nominal 9V adapter.
Need Help Selecting the Right Product?
Share your device interfaces, network environment and project requirements with the DTECH industrial communication team.