--- product_id: 308714108 title: "MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc)" brand: "knacro" price: "S/.301" currency: PEN in_stock: true reviews_count: 2 category: "Knacro" url: https://www.desertcart.pe/products/308714108-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module store_origin: PE region: Peru --- # Industrial-grade MAX3485ESA chip LED indicators for power, TX, RX 485 signal overvoltage protection MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) **Brand:** knacro **Price:** S/.301 **Availability:** ✅ In Stock ## Summary > ⚡ Convert with Confidence — Power Your Network Like a Pro! ## Quick Answers - **What is this?** MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) by knacro - **How much does it cost?** S/.301 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/308714108-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module) ## Best For - knacro enthusiasts ## Why This Product - Trusted knacro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Industrial Chipset:** Powered by the MAX3485ESA for reliable, professional-grade signal conversion. - • **Real-Time Signal Monitoring:** Integrated power and data LEDs give you instant visual feedback on send/receive status. - • **Built-in Overvoltage Defense:** Protect your network with advanced 485 signal overvoltage protection—no more costly burns or heat issues. - • **Plug & Play Development Ready:** All pins lead out with 2.54mm pitch and included wiring diagram for effortless integration. - • **Seamless Long-Distance Communication:** 120Ω termination resistor strobe function supports stable, extended-range RS485 connections. ## Overview The MAX3485 3.3V RS485 to TTL Signal Conversion Module by KNACRO features an industrial-grade MAX3485ESA chip with built-in overvoltage protection and LED indicators for real-time signal status. Designed for long-distance RS485 communication, it includes a 120Ω termination resistor strobe and tantalum electrolytic capacitors for superior power filtering. Its pin layout and wiring diagram simplify development, making it a reliable choice for professional-grade serial communication projects. ## Description 1, The module uses all industrial MAX3485ESA chip 2, With 485 signal overvoltage protection 3, With a signal, power LED indicator, send and receive situation panoramic view 4, With 120 ohm termination resistor strobe function, long-distance communication, can be directly shorted 5, The module will be 485 signal to the MAX485 signal can withstand the common-mode voltage of -7 to +12 V, the module can be solved as a result of the 485 signal common-mode voltage is too high, resulting in 485 burn or heat problems. 6, The module uses tantalum electrolytic capacitors to filter the power supply, the power quality better. 7,The module pin pin can be directly inserted in the hole plate 2.54 pitch for easy development 8, Our all modules have to undergo a rigorous test to ensure quality 9, The back of the module with a wiring diagram, to facilitate your use Package Included: 1xRS485 to TTL Signal Mutual Conversion Module Review: Works great! R5 Not installed for Termination - The adapter works great with an EP8266 to interface to another RS-485 device! Have run it at 115200 baud over a 100 foot cable. No issues. * Note: Does NOT come with resistor R5 installed to enable local termination. To enable local termination, one must jumper the two mounting pads for resistor R5. Product schematic in the listing shows a 0 ohm resistor in the circuit for R5. This is incorrect. Review: Works great - This review is for the single pack of the max 3485 3.3v board. There are 3 LEDs, one for power, one for tx, and one for rx. The board worked fine and the LEDs also work as expected to show bus traffic. There are empty solder pads to short if you want to enable termination. Good product. ## Features - The module uses the industrial grade chip MAX3485ESA. - With 485 signal overvoltage protection. - With a signal, power LED indicator, send and receive situation panoramic view. - With 120 ohm termination resistor strobe function, long-distance communication, can be directly shorted. All pins lead out. - The module uses tantalum electrolytic capacitors to filter the power supply, power supply superior quality. Product back with wiring diagram. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07V5LND1T | | Brand | KNACRO | | Color | Red | | Customer Reviews | 4.1 4.1 out of 5 stars (7) | | Input Voltage | 12 Volts | | Item Weight | 0.02 Kilograms | | Manufacturer | KNACRO | | Mfr Part Number | RS485 to TTL | | Model Number | RS485 to TTL | | Output Voltage | 3.3 Volts | | Plug Type | Type B | | UPC | 724873026720 724873028465 | ## Product Details - **Brand:** KNACRO - **Colour:** Red - **Input voltage:** 12 Volts - **Item weight:** 0.02 Kilograms - **Output voltage:** 3.3 Volts ## Images ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 1](https://m.media-amazon.com/images/I/71ZE7J8jX9L.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 2](https://m.media-amazon.com/images/I/81-IaQT7eOL.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 3](https://m.media-amazon.com/images/I/51yaCYZhBAL.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 4](https://m.media-amazon.com/images/I/51U7COsjxpL.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 5](https://m.media-amazon.com/images/I/81rCKvX8iWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! R5 Not installed for Termination *by K***S on 17 December 2023* The adapter works great with an EP8266 to interface to another RS-485 device! Have run it at 115200 baud over a 100 foot cable. No issues. * Note: Does NOT come with resistor R5 installed to enable local termination. To enable local termination, one must jumper the two mounting pads for resistor R5. Product schematic in the listing shows a 0 ohm resistor in the circuit for R5. This is incorrect. ### ⭐⭐⭐⭐⭐ Works great *by R***O on 5 October 2020* This review is for the single pack of the max 3485 3.3v board. There are 3 LEDs, one for power, one for tx, and one for rx. The board worked fine and the LEDs also work as expected to show bus traffic. There are empty solder pads to short if you want to enable termination. Good product. ## Frequently Bought Together - KNACRO MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/308714108-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module](https://www.desertcart.pe/products/308714108-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-07-22*