485 repeater magnetic isolation industrial grade RS485 signal amplifier anti-interference lightning protection extending communication distance photoelectric isolation
Description:
RS485 active isolation repeater (485 amplifier, 485 isolator, 485 extender)
It is a product specially developed for high-demand places. The product is compatible with the RS485 industry standard. It is used to extend and isolate the communication distance of the RS485 differential communication signal, which can extend the RS485 signal by about 1500 meters or add 256 more nodes. At the same time, multiple isolations such as DC-DC power supply isolation and communication signals provide effective protection for RS485 communication.
This RS485 repeater is simple to use, only need to connect the repeater to the communication network, and there is no need to control the data flow direction in use, and the converter automatically controls the data transmission and reception flow direction. The entire communication transmission process is completely transparent. The product is designed in accordance with the concept of industrial control standards. The power supply is completely isolated and the communication is completely isolated! It has the characteristics of strong anti-interference ability, long transmission distance, high speed, and stable operation.
Product advantages:
1. Strong anti-interference ability and long communication distance
Built-in industrial-grade DC-DC isolated power supply module to achieve electrical isolation between ports;
The imported fully isolated 485 communication chip is used to ensure the complete isolation of communication.
2. Multiple protections, stable and reliable
Adopt photoelectric isolation anti-interference 2500v isolation voltage 600w lightning surge protection
Built-in TVS anti-surge protection
3. Adaptive data flow direction, easy to use
Plug and play suitable for all 485 devices, pure hardware devices are not restricted by software protocols
Optimize the bus layout structure
4. Power isolation and signal isolation between input and output
Each channel of distribution ports does not interfere with each other, and each channel can drive up to 256 devices
5. Long-distance high-speed communication
Transmission distance is greater than 1800m, transmission rate 115200kbps
Communication parameters:
Compliance: EIA RS-485 standard RS-485 signal A+, B-
Working mode: asynchronous transmission, point-to-point, point-to-multipoint, two-wire half-duplex
Transmission medium: ordinary wire, twisted pair or shielded wire, it is recommended to use shielded twisted pair or dedicated communication wire
Baud rate: 300^-115200bps, automatic detection of serial port signal baud rate
Direction control: automatically identify the direction and automatically control the direction of data transmission
Transmission distance: 1500 meters
Communication protocol: transparent transmission
Interface protection: 1500W surge protection, 15KV electrostatic protection, 2500V communication isolation, lightning protection
12 Working environment: 0℃~60℃ relative humidity 5%~95%
Cascading: RS485 terminal can cascade up to 256 enhanced RS485 devices. (The number of devices that can be cascaded in actual applications depends on the type of 485 chip used by other devices. At present, ordinary 485 chips can be cascaded to 32 communication nodes, and the enhanced type can be cascaded to 256 communication nodes. Of course, the actual The number of nodes that the application can reach is also related to the communication environment, wire, communication distance, and communication speed)
Power supply
Input power: DC9~24V wide range DC voltage input
Power consumption: about 40mA in static state, 60mA in dynamic state
