MAX485 RS485 TTL To RS-485 MAX485CSA Transceiver Module is based on the Maxim MAX485 IC to allow serial communication over very long cable runs (up 4000 feet / 1200 meters). MAX485 converter board, serial data can be transmitted in both directions (half-duplex) at a data rate up to 2.5Mbps. The max485 TTL to rs485 converter module operates from a standard 5V power supply and uses 5V logic levels allowing them to be interfaced to the hardware serial ports of microcontrollers such as Arduino/PIC etc. The direction of communication can be controlled with just one digital pin (see diagram). RS485 to TTL module is also possible to connect multiple modules together for communication between 2 or more devices. For even greater distances two modules can be configured as a repeater.

Each module contains one driver and one receiver. Drivers are short-circuited current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is an open circuit.

Data connections to the RS-485 modules are provided by standard 0.1" pitch header pins which can also be soldered into standard prototyping PCB and breadboards. Screw terminals provide a convention connection to the actual data cable.

Features Of MAX485 Module RS-485 TTL to RS485 MAX485CSA Converter Module Circuit Board:

• On-board MAX485 chip, A low power consumption for the
• RS-485 communication, slew-rate limited transceiver.
• Then 5.08 (mm) pitch 2P terminal, convenient RS-485 communication wiring.
• All pins of the chip that have been led can be controlled through the mini controller.

Specifications Of TTL to RS-485 Module Converter Board For Arduino:

1. Operating voltage: 5V
2. Distances: up to 1200 meters
3. Speeds: up to 2.5Mbit/Sec
4. Multi-drop supports: up to 32 devices on the same bus
5. Power LED: Red
6. Board size: 44 (mm) x14 (mm).

Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

• VCC........5V
• A............Non-inverting Receiver Input and No-ninverting Driver Output.
• B............Inverting Receiver Input and Inverting Driver Output
• GND.......0V
• R0..........Receiver Output (to Rx pin of microcontroller)
• RE..........Receiver Output Enable (Low to enable)
• DE..........Driver Output Enable (high to enable)
• DI...........Driver Input (to Tx pin of microcontroller)

Package Includes:

• 1 x MAX485 RS485 TRANSCEIVER MODULE

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