Hign-concerned Chemical : None
Model Number : 123
Type : Module
Origin : China
Condition : New
TTL to RS485 module
Module highlights:
(1) 3.3V and 5.0V power perfect compatibility
(2) 3.3V and 5.0V signal perfect compatibility
(3) the absolute adopts imported chip, industrial design, strong anti-interference ability, at the same time, adopt more effective lightning protection design, 485 can be used in industrial field and field under the harsh environment, the working temperature of 40 to + 85 , the transmission distance of km (with 850 m 2 * 1.5 cable testing, suggest use within 800 meters, more than 800 meters please add repeater)
(4) the half hole process design, plate thickness 0.8mm, can be easily as composite plate, can also be used for welding terminal
(5) has the RXD, TXD signal indicator lights, send and receive status panoramic view
The module features:
(1)This module fully considered485BusLightning protection designAnti interference Design When the long-distance transmission in the field, the "Earth" of the module is connected to the earth, which can play a very good role in anti interference and lightning protection.485Bus is more secure; indoor short distance transmission can not access the earth.
(2) with a standard2.54Spacing design to facilitate your two development
(3Have 120Ou matching resistance, short connectR0Can match the resistance, long distance transmission is recommended.
(4Support multi machine communication, allowing access to the most 128A device on the bus
(5This module can be hot plug, no other 485Chip hot swap signal plug phenomenon
(6Large area laying copper, preventing signal interference
The line layout is compact and regular, with good electrical insulation and mechanical stability, and can maintain stable performance under different temperature and humidity environments to ensure accuracy and reliability.
In circuit design, carefully planned lines are like precision transportation networks, and lines of different widths and spacings undertake different currents and signals transmission tasks respectively. The key signal lines are impedance matching processing, which greatly reduces signal reflection and attenuation and ensures the stable transmission of high-frequency signals.
All kinds of electronic components are soldered on the circuit board, and the solder joints are full, round, and firm and reliable. Core components like chips are perfectly connected to the circuit board through fine packaging processes to achieve high-speed data processing and interaction.
This circuit board has a wide range of responses in many fields. Whether in the industrial control field that requires extremely high stability or consumer electronics field that pursues extreme performance, it can provide solid guarantees for the stable operation of the equipment with its excellent design and reliable performance, and help various electronic devices play a powerful role.
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