Benchmark & Review
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3.0kV Optical Isolation
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35mm DIN-Rail Mounting
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-40°C to +85°C Industrial
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24-Month 1-to-1 Warranty
DeviceLab DL-RS485 Industrial RS485 to Ethernet Converter
Price:
Contact Us
B2B project quotation & tiered volume discounts for M&E contractors, SI integrators
The DeviceLab DL-RS485 is an industrial-grade RS485-to-Ethernet serial device server engineered specifically for harsh, high-electromagnetic-interference (EMI) environments. It features 3.0kV galvanic optical isolation, 600W TVS surge protection, dual hardware/software watchdog timers for 24/7 anti-freeze reliability, and full support for Modbus Gateway (Modbus RTU to Modbus TCP), TCP Server/Client, UDP, and Virtual COM modes.
Key Technical Features:
- ✓ 3.0kVAC Galvanic Isolation eliminates ground loops, paired with 600W TVS surge suppression
- ✓ Dual Watchdog mechanism (Hardware + Software) provides automatic 24/7 fault recovery without manual intervention
- ✓ Versatile communication modes: Modbus RTU ↔ Modbus TCP Gateway, TCP Server/Client, UDP & Virtual COM
- ✓ Rugged aluminum alloy enclosure with passive cooling, wide 9–36V DC input, standard 35mm DIN-rail mounting
Direct technical project consultation:
📞 0982 503 355 (Hotline/WhatsApp)
HARDWARE ARCHITECTURE & RELIABILITY
Key Technical Features
Engineered for extreme electromagnetic conditions in industrial control panels, substations, and smart facilities.
01
Industrial 3.0kV Galvanic Optical Isolation
Provides complete electrical isolation for central control systems and PLC networks, neutralizing ground potential differences (ground loops) and transient voltage spikes across long-distance plant floor wiring.
02
Dual Watchdog Timer Mechanism (Hardware + Software)
Monitors system health continuously. Automatically detects protocol freezes or network anomalies and executes microsecond resets to maintain 24/7 uninterrupted operation in remote unmanned panels.
03
Comprehensive Industrial Networking Modes
Supports TCP Server, TCP Client, UDP, Modbus RTU ↔ Modbus TCP bidirectional gateway conversion, and Virtual COM port emulation for seamless plug-and-play integration with legacy SCADA software.
04
Engineered for Electrical Control Panels
Industrial-grade all-aluminum heat-dissipating housing, standard EN 50022 35mm DIN-rail latch, reverse polarity protection, and broad 9–36V DC input range designed for factory automation panels.
PRODUCT DATASHEET
Detailed Technical Specifications
All parameters measured and verified under laboratory stress testing and industrial environmental standards.
SPECIFICATION SHEET: DL-RS485
● INDUSTRIAL COMPLIANT
| RS485 Port | 1 × RS485 (3-pin industrial terminal block: A, B, GND), 300 bps to 230,400 bps |
|---|---|
| Port Protection | 3.0 kVAC Galvanic Isolation, 600W TVS surge protection, 15kV ESD air discharge protection |
| Ethernet Port | 1 × RJ45 (10/100 Mbps, Auto MDI/MDIX) with 1.5kV magnetic isolation transformer |
| Network Protocols | IP, TCP, UDP, ARP, ICMP, DHCP, DNS, HTTP, Modbus RTU/ASCII/TCP |
| Operating Modes | Modbus Gateway, TCP Server, TCP Client, UDP, Virtual COM |
| Configuration Tools | Intuitive Web GUI (HTTP), LAN IP Discovery Utility |
| Power Supply | 9 – 36V DC (Industrial pluggable terminal block) with reverse polarity protection |
| Power Consumption | < 1.5W |
| Operating Temp | -40°C to +85°C (Extended industrial temperature range) |
| Enclosure & Mount | Aluminum alloy casing with anti-interference shielding, 35mm DIN-Rail mount |
| Warranty | 24 months (1-to-1 hardware replacement policy) |
FIELD IMPLEMENTATION
Typical Industrial Applications
Proven in factory automation, smart energy management, and industrial IoT retrofitting projects.
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Connecting digital power meters, water flow meters, and environmental sensors to central SCADA / BMS systems.
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Remote monitoring and control of variable frequency drives (VFDs), temperature controllers, and PLCs over plant LAN.
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Retrofitting legacy industrial machinery and production lines to central supervisory computers without PLC reprogramming.
CABINET INSTALLATION GUIDELINES
Wiring Schematics & Installation Specs
Signal Wiring Standard Guidelines:
Signal wiring via 3-pin pluggable terminal: Pin A (+), Pin B (-), Pin GND (Shield earth ground). Operating DC power 9–36V connects via 2-pin industrial screw terminal block.
35mm DIN-Rail Mount: Standard EN 50022 metal latch for rapid tool-less snap-on installation.
RS485 Signal Cable: Shielded Twisted Pair (STP 24 AWG) recommended with shield grounded to terminal GND.
120Ω Terminating Resistor: Enable terminating resistor at both extreme ends of lines exceeding 100 meters.
DC Industrial Power Supply: Connect standard 9–36V DC power (or 48V PoE where equipped).
DEVICE MATRIX
Compare with Related Models
Engineered for extreme electromagnetic conditions in industrial control panels, substations, and smart facilities.
| Technical Specifications |
Viewing
DL-RS485
Serial Device Server
|
DL-IOT-GW ↗ Modbus Edge Gateway | DL-IOT-GW-4 ↗ Multi-Port Gateway |
|---|---|---|---|
| RS485 Ports | 1 Port | 1 Port | 4 Independent Isolated Ports |
| Primary Purpose | Pure Signal Conversion | Smart Polling & Cloud Push | Main Switchboards, High-density Aggregation |
| Multi-Master Caching | None | Yes (< 2ms response) | Yes (Independent on all 4 channels) |
| Bus Line Diagnostics | Basic LED indicators | Detailed Web GUI suite | Per-port LEDs + Relay Alarm contact |
| IoT & Cloud Protocols | None | MQTT, HTTP, REST API | MQTT, OPC UA, REST, BACnet |
| Ethernet Interfaces | 1 × 10/100 Mbps | 1 × 10/100 Mbps (PoE supported) | 2 × Gigabit 1000 Mbps (Dual Subnet IP) |
| Offline Storage | None | Yes (100,000 records) | Yes (Onboard Edge SQLite DB) |
| Edge Computing | None | None | Yes (Node-RED, Python 3) |
| Power Supply | 9–36V DC single input | 9–36V DC or PoE 802.3af | Dual Redundant 9–48V DC inputs |
| Warranty | 24 Months (1-to-1 swap) | 24 Months (1-to-1 swap) | 24 Months (1-to-1 swap) |
| Pricing | Contact Us | Contact Us | Contact Us |
| Navigation | Quote this model ↓ | View details → | View details → |
TECHNICAL DOCUMENTATION & ARTICLES
Related Application Notes & Guides
TECHNICAL DOCUMENTATION & ARTICLES
Wiring Schematics
RS485 to Ethernet Wiring Diagrams for Siemens & Mitsubishi PLCs
Hardware Protection
Optical Isolation & Surge Protection for Industrial RS485
FREQUENTLY ASKED QUESTIONS
Technical FAQs on DL-RS485
Engineered for extreme electromagnetic conditions in industrial control panels, substations, and smart facilities.
Does the DL-RS485 include true galvanic optical isolation?
Yes. The DL-RS485 features 3.0kVAC industrial-grade galvanic optical isolation paired with an isolated DC-DC converter. This eliminates ground loop currents between distant cabinets and shields communications from high-power VFD harmonic noise.
Is the DL-RS485 compatible with Siemens S7-1200 and Mitsubishi PLCs?
100% compatible. The device operates as a transparent Modbus RTU ↔ Modbus TCP bidirectional gateway, connecting directly to Siemens (S7-1200/1500), Mitsubishi (FX5U/Q-Series), Schneider, and Delta PLCs over standard Ethernet RJ45 cables.
How are the IP address and baudrate configured on the DL-RS485?
Configuration is performed entirely through a responsive Web GUI via any standard browser. The device supports baud rates from 300 bps to 230,400 bps, with quick configuration presets for TCP Server, TCP Client, and UDP modes.
What warranty and technical support services are provided by DeviceLab?
The product comes with a 24-month manufacturer warranty with a 1-to-1 replacement policy. DeviceLab’s hardware engineering team provides direct 24/7 technical assistance, CAD drawings, wiring diagrams, and configuration templates.
ENGINEERING PROJECT CONSULTATION
Request Quotation: DL-RS485
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