TTL to RS485 Converter Module

This industrial-grade TTL to RS485 module is designed for robust serial communication in harsh environments. It supports automatic hardware flow control and is compatible with both 3.3V and 5.0V logic levels. Ideal for connecting microcontrollers to RS485 devices over long distances.

Features:

• Converts TTL UART to RS485
• Supports 3.3V / 5V logic levels
• Automatic hardware flow control
• TXD and RXD LED indicators
• Operating temperature: -40°C to +85°C
• Strong anti-interference capability
• Supports up to 128 devices on RS485 bus
• Tested up to 850m with 2x1.5mm² cable (recommended ≤800m)
• Built-in 120Ω termination resistor (short R0 to enable)
• Half-hole (castellated) 2.54mm pitch for soldering or baseboard mounting
• Large copper area to reduce signal interference
• Hot-swappable – safe to connect while powered

Specifications:

• Chip: Industrial-grade RS485 transceiver
• Voltage: 3.3V / 5.0V compatible
• Operating Temperature: -40°C to +85°C
• Dimensions: 42.8mm x 15.22mm x 0.8mm
• Indicators: TXD and RXD LEDs
• Bus Capacity: Up to 128 devices

Package Includes:

• 1 x TTL to RS485 Converter Module

Note: The item color may appear slightly different due to monitor and lighting conditions. Measurement tolerance: ±1–3cm.