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MAX485 module, RS485 module, TTL turn RS - 485 module, MCU development accessories

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1pc MAX485 TTL to Turn RS485 Module Level Conversion 485 To Serial UART MAX485CSA RS-485 For Arduino

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MAX485 module, RS485 module, TTL turn RS - 485 module, MCU development accessories

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Product introduction:

The module uses a black backplane-circuit board, high quality, standard 3.81mm plug, another pin interface, RS485 transceiver automatic switching, no direction switching, dual LED indicators on the board indicate the status of receiving and sending, and a power light indicates power supply Status, on-board voltage regulator chip supports 3.3-5V wide voltage power supply

Supplied (not soldered): standard 3.81mm industrial plug, 2.54 pitch pin

The transparent transmission module realizes the mutual conversion of TTL level signals and RS485 level signals, and 485 is half-duplex communication. This communication method can realize two-way communication, but cannot be performed simultaneously in two directions, and must alternately and alternately Each segment of the communication channel can be either a transmitting end or a receiving end, but at the same time, the information can only have one transmission direction. This module realizes the automatic flow direction control of RS485 signal, and the transmission and reception direction is automatically switched. This module is the same as the operation serial port. It adopts imported chip, industrial grade design, anti-jamming type and copper plating method, has high EMI and EMC, makes it strong anti-interference ability, and adopts powerful 485 bus lightning protection design. It can be used in industrial environments and in harsh outdoor environments. The transmission distance can reach up to kilometers (using 850 meters of 2*1.5 cables for testing, it is recommended to use within 800 meters, more than 800 meters for repeaters). When transmitting in the wild for long distances, the "connected earth" end of the module is connected to the earth, which can play a good role of anti-interference and lightning protection, making the 485 bus more secure; the indoor short-distance transmission can not be connected to the earth. With RXD, TXD signal indicator, the receiving and receiving status is unobstructed. It can be hot swapped without signal embedding.

Parameter

1. With standard 2.54 pitch pin, convenient for secondary development;

2. With 120 ohm matching resistor, short circuit R0 can enable matching resistor, short circuit is recommended for long distance transmission;

3. Support multi-machine communication, at least 40 nodes can be connected to the same network;

4. Wide voltage supply (3.0V~30V), limit voltage 33V, it is recommended to use within 30V, the minimum voltage is higher than 2.8V;

5. Compatible with 3.3V and 5.0V signals, can match the module;

2.547 white socket, designed with 4P silicone wire, high temperature resistant, anti-aging

1.onboard MAX485 chip is a low power consumption, limit slew rate transceiver for RS-485 communication.

2.on board with 5.08 (mm) spacing 2P terminal, easy RS-485 communication wiring.

3. all the chip pin has been led out, you can control the operation through the microcontroller.

4. the working voltage: 5V.

5. board size: 46mmx12mm.

Tips:

This module can realize the mutual conversion between TTL signal and RS485 signal, but 485 is half-duplex communication. This communication mode can realize two-way communication, but it can not be carried out in two directions at the same time. That is, each end of the communication channel may be the transmitting side or the receiving side, but at the same time, the information may have only one transmission direction.
This module realizes the mutual conversion between TTL signal and RS485 signal, no need to "receive - send" control, use this module as you operate the serial port as simple, compatible with 3.3V and 5.0V power supply, compatible with 3.3V and 5.0V signal; Imported chip, the performance is very stable, to industrial design standards; anti-interference ability, while more effective 485 mine design, in the industrial field and field harsh environment, the transmission distance of up to 1000 meters Of the 850 meters of 2 * 1.5 cable to do the test, it is recommended to use within 800 meters, more than 800 meters, please add repeaters).

Product Features:

Fully consider the 485 bus lightning protection design and anti-jamming design, long-distance transmission in the field, the module's "earth" side access to the earth, can play a very good anti-jamming and lightning effect, 485 Bus more secure; indoor short distance transmission can not access the earth.
The use of standard 2.54 pitch design, to facilitate your secondary development.
With 120 ohm matching resistor, shorted R0 to enable matching resistor, long-distance transmission of the proposed short-circuit.
Support multi-machine communication, allowing access to up to 128 devices on the bus.
Support hot-swappable, there will not be other 485 chip hot plug signal plug dead phenomenon.
Large area of copper, to prevent signal interference.
Half-hole process design, thickness 0.8mm, can be easily used as a mother board, but also welding terminal use.
With RXD, TXD signal indicator.

Product parameters:

Operating voltage: compatible with 3.3V and 5.0V
Support baud rate: 110-256000bps
Operating temperature: -40 Celsius to +85 Celsius
Communication signal: compatible with 3.3V and 5.0V

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ARDUINO - ROBOTICS

1pc MAX485 TTL to Turn RS485 Module Level Conversion 485 To Serial UART MAX485CSA RS-485 For Arduino

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