Isolated RS485 Level Converter Module 3.3V 5V TTL 2Mbps

Isolated RS485 Level Converter Module – 3.3V/5V TTL Input, 2Mbps, Gold-Plated Pads

Upgrade your embedded or industrial communication setup with this fully isolated RS485 level converter module. Supporting both 3.3V and 5V TTL logic levels and capable of transmitting at speeds up to 2Mbps, this compact module is engineered for developers, automation professionals, and electronics engineers who demand fast, stable, and noise-immune serial communication.

The built-in galvanic isolation protects your host system from ground loops and voltage spikes, while the onboard TVS protection guards against transient surges — making it equally at home in electrically noisy factory environments and precision data acquisition setups. Gold-plated semi-immersion PCB pads ensure a secure, corrosion-resistant solder connection every time.

Key Features

• Dual Voltage Support: Compatible with both 3.3V and 5V TTL logic — no level-shifting adapters needed
• High-Speed Communication: Up to 2Mbps data rate for demanding industrial and automation applications
• Full Galvanic Isolation: Protects host circuitry from ground loops, surges, and electrical interference
• TVS Surge Protection: Industrial-grade transient voltage suppression on RS485 lines
• Gold-Plated PCB Pads: Durable semi-immersion gold contacts for reliable soldering and long-term connectivity
• Built-in Bus Termination: Onboard 120Ω balancing resistor for stable RS485 differential signaling
• Compact Form Factor: 34 × 18 × 9 mm ABS housing fits easily in space-constrained enclosures
• Standard Pinout: 2.54 mm solderable pin header and 5.08 mm KF301-compatible RS485 terminal

Specifications

Ideal Applications

• Industrial automation control systems
• Remote sensor and monitoring networks
• Data acquisition and logging systems
• Embedded systems with UART/TTL serial output
• Smart home and building automation controllers
• Robotics and PLC communication interfaces

Package Contents

• 1 × Isolated RS485 Level Converter Module (DC 3.3V/5V)

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Frequently Asked Questions

Q: Is this RS485 converter module compatible with both 3.3V and 5V microcontrollers?

A: Yes. The isolated RS485 level converter module natively supports both 3.3V and 5V TTL logic input, making it directly compatible with a wide range of microcontrollers, single-board computers, and PLCs without requiring any additional level-shifting circuitry.

Q: What does "fully isolated" mean for this RS485 module?

A: Full galvanic isolation means the TTL/logic side and the RS485 bus side are electrically separated from each other. This prevents ground loops and voltage differentials between devices from damaging your microcontroller or host system — a critical feature in industrial environments with multiple grounding points or noisy electrical conditions.

Q: How fast can this module transmit data over an RS485 network?

A: This module supports communication speeds of up to 2Mbps, suitable for high-throughput industrial and automation data links. Actual speed may vary depending on cable length and network topology — shorter cable runs allow for higher speeds.

Q: Does this module include a bus termination resistor?

A: Yes. An onboard 120Ω bus termination resistor is included, which helps eliminate signal reflections on the RS485 differential bus — particularly important for long cable runs and high-speed communication.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.