Product Overview
The DSWI Series replaces long cable runs with reliable industrial wireless communication, reducing installation costs, simplifying system expansion, and improving maintenance. Using LoRa frequency hopping technology (FHSS) and CRC data verification, it ensures stable communication even in electrically noisy industrial environments.
Each transmitter and receiver pair is factory-configured for point-to-point (P2P) communication, allowing quick installation without programming or configuration.
Product Series
| Model | Description |
|---|---|
| DSWI-T4DI-485 | Wireless Transmitter – 4 Digital Inputs + RS-485 |
| DSWI-R4DO-485 | Wireless Receiver – 4 Digital Outputs + RS-485 |
Key Features
- Long-range LoRa private wireless communication
- Point-to-Point (P2P) wireless networking
- 4 Digital Inputs (Transmitter)
- 4 Digital Outputs (Receiver)
- Integrated RS-485 communication
- LCD status display
- FHSS frequency hopping technology
- CRC data verification
- Optocoupler isolation
- Power isolation
- Industrial M12 waterproof connector
- SMA detachable antenna
- DIN rail mounting
- Factory paired transmitter and receiver
- Plug-and-play installation
- Excellent anti-interference performance
- Industrial IP65 enclosure
- Supports remote I/O expansion
Model Code Explanation
Example: DSWI-T4DI-485
| Code | Description |
|---|---|
| DSWI | Denki Seigyo Wireless I/O |
| T | Wireless Transmitter |
| 4 | Four Channels |
| DI | Digital Inputs |
| 485 | RS-485 Communication |
Example: DSWI-R4DO-485
| Code | Description |
|---|---|
| DSWI | Denki Seigyo Wireless I/O |
| R | Wireless Receiver |
| 4 | Four Channels |
| DO | Digital Outputs |
| 485 | RS-485 Communication |
Wireless Communication Specifications
| Parameter | Specification |
|---|---|
| Communication Technology | LoRa Private Network |
| Frequency Band | 470–510 MHz |
| Network Mode | Point-to-Point (P2P) |
| Communication Method | FHSS + Time Division |
| Transmission Distance | Up to 500 m (Line of Sight) |
| Maximum Link Budget | 157 dB |
| RF Output Power | 17 dBm |
| Antenna Gain | 3 dBi |
| Communication Speed | 2400 / 800 / 300 bps |
| Receiver Sensitivity | -126 / -130 / -140 dBm |
| Reset | Software & Hardware Supported |
Input & Output Specifications
DSWI-T4DI-485 Wireless Transmitter
| Parameter | Specification |
|---|---|
| Digital Inputs | 4 |
| Input Type | Dry Contact / Passive Signal |
| Communication | LoRa + RS-485 |
DSWI-R4DO-485 Wireless Receiver
| Parameter | Specification |
|---|---|
| Digital Outputs | 4 |
| Alarm Output | 1 |
| Communication | LoRa + RS-485 |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 18–30 VDC |
| Battery Version | Optional 12 VDC |
| Current Consumption | <30 mA @ 24 VDC |
| Display | LCD |
| Electrical Isolation | Optocoupler Isolation |
| Surge Protection | 4 kV Common Mode / 2 kV Differential |
| Reverse Connection Protection | Yes |
Communication Interface
| Parameter | Specification |
|---|---|
| Serial Interface | RS-485 |
| Connector | M12 Waterproof Connector |
| Antenna Connector | SMA Female |
Mechanical Specifications
| Parameter | Specification |
|---|---|
| Housing Size | 80 × 80 × 65 mm |
| Antenna | Ø12 × 155 mm |
| Mounting | DIN Rail |
| Housing Material | Industrial PC |
Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | -30°C to +70°C |
| Humidity | ≤95% RH (Non-Condensing) |
| Protection Rating | IP65 |
| Housing Material | Industrial PC |
System Architecture
The DSWI Series enables wireless communication between field devices and control equipment:
Sensors / Push Buttons → DSWI-T4DI-485 Wireless Transmitter → LoRa Wireless Communication (470–510 MHz) → DSWI-R4DO-485 Wireless Receiver → PLC / Relay / Solenoid / Indicator Lamp
This architecture significantly reduces wiring while maintaining reliable signal transmission.
Installation Guidelines
- Install the antenna before powering the device.
- Transmitter and receiver are factory paired.
- Maintain a minimum antenna spacing of 500 mm.
- Mount both devices on DIN rails inside industrial control panels.
- Separate power and communication wiring for optimum performance.
Typical Applications
The DSWI Series is suitable for:
- Factory Automation
- Conveyor Systems
- Crane Control
- AGV Systems
- Material Handling
- Packaging Machines
- Water Treatment Plants
- Steel Plants
- Mining Industry
- Warehouse Automation
- Remote I/O Expansion
- Industrial Monitoring
- Process Automation
- Machine Automation
Advantages of Denki Seigyo Wireless I/O
- Eliminates long cable runs
- Reduces installation cost
- Fast plug-and-play deployment
- Reliable long-distance communication
- High immunity to electrical interference
- Easy integration with PLCs through RS-485
- Scalable for industrial automation projects
- Low maintenance and high reliability
Why Choose Denki Seigyo DSWI Series?
- Industrial-grade LoRa wireless technology
- Long-range communication up to 500 meters
- Secure point-to-point wireless networking
- Built-in RS-485 interface
- Rugged IP65 enclosure
- Optical isolation for reliable operation
- Factory-paired transmitter and receiver
- Designed for harsh industrial environments
Frequently Asked Questions
What is the communication range of the DSWI Series?
The DSWI Series supports wireless communication up to 500 meters in line-of-sight conditions using LoRa technology.
What communication protocol does the DSWI Series use?
It uses a LoRa Private Network with FHSS (Frequency Hopping Spread Spectrum) and CRC data verification for reliable and secure industrial communication.
What are the I/O configurations?
- DSWI-T4DI-485: 4 Digital Inputs + RS-485
- DSWI-R4DO-485: 4 Digital Outputs + RS-485
Is configuration required before installation?
No. The transmitter and receiver are factory paired, allowing quick plug-and-play installation.
Which industries commonly use the DSWI Series?
The DSWI Series is widely used in factory automation, conveyors, cranes, AGVs, packaging machinery, water treatment, mining, warehouse automation, and remote monitoring systems.
Product Summary
The Denki Seigyo DSWI Series Industrial Wireless I/O System delivers dependable long-range wireless signal transmission for industrial automation. Combining LoRa communication, RS-485 networking, 4-channel digital I/O, LCD status display, optical isolation, and IP65 protection, the DSWI Series reduces wiring complexity while ensuring stable, interference-resistant communication in demanding industrial environments.
