Technical Specifications​​

​​Industrial-Grade Design​​

ISO 11898-2 Compliant RS-485 Interface

Operating Temp: -40℃ to +85℃ (EN 60721-3-4 Class 4K4)

EMC Protection: ±15kV ESD / 4kV Surge (IEC 61000-4-2/5)

​​Extended Transmission Capability​​

Max 1200m @ 115.2kbps (With 24AWG Shielded Twisted Pair)

Integrated Repeater Circuit for Daisy-Chain Topology

​​Terminal Configuration​​

Auto-Polarity Detection with 120Ω Termination Resistor

Galvanic Isolation: 2500Vrms (IEC 60664-1)

Grounding Lug for Lightning Protection (IEC 62305-1)

​​Protocol Support​​

Modbus RTU/ASCII (EN 1434-3)

Profibus-DP (IEC 61158-2)

Baud Rate: 300bps-12Mbps (Configurable via DIP Switch)

​​Compliance Certifications​​

CE EMC 2014/30/EU | FCC Part 15B Class A | RoHS 3 (2025) | IP65 Enclosure (IEC 60529)

TTL to RS485 485 to Serial UART Adapter
Compatible with 3.3V and 5.0V power supply.
Has RXD, TXD signal indicator light, monitor send and receive status.
Support multi-machine communication, allowing access at up to 128 devices on the bus
The module can be hot swapped, the signal does not appear dead phenomenon.