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AJMRTC TTL to RS485 Galvanic Isolated Converter Module, 3.3V/5V TTL Level to RS485 Signal Transceiver, Isolation Protection, Automatic Send-Receive Control, Half-Duplex for Industrial Serial Communica
- - High isolation galvanic isolation design blocks ground loop interference and surge noise
- - Supports both 3.3V and 5V TTL logic level input for flexible MCU matching
- - Auto TX/RX direction control, no extra direction control GPIO required
- - Half-duplex RS485 bus, supports multi-node bus networking up to 32 devices
- - Onboard ESD and TVS protection, anti-surge for harsh industrial environments
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Overview
Specs
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AJMRTC galvanic isolated TTL to RS485 converter converts TTL UART signals into standard RS485 differential signals. The isolation barrier eliminates ground potential difference interference which commonly causes communication failure in long-distance wiring. It adopts automatic transmit-receive switching circuit, greatly simplifying the software design for microcontrollers. Built-in ESD and transient suppression components protect the module from static electricity and voltage spikes. It works well with Raspberry Pi Pico, ESP32, Arduino and STM32. Suitable for long-range sensor data transmission, industrial field bus, PLC communication and remote data acquisition systems. Main controller boards are not included.
Specifications
- Function: TTL UART to RS485 conversion, galvanic isolation
- TTL Logic: 3.3V / 5V compatible
- Communication Mode: Half-duplex
- Direction Control: Automatic send-receive control
- Isolation Voltage: 2500V isolation
- Baud Rate: Up to 500kbps
- Bus Capacity: Max 32 nodes on one bus
- Protection: ESD, TVS surge protection
- Compatible MCU: Raspberry Pi Pico, ESP32, Arduino, STM32
- Application: Industrial serial bus, long distance data transmission, sensor networking, PLC communication
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by ConnectFlow USA Return Policy
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