The 485 hub is an RS-485 bus splitting hub with internal dual-core, non-stop (non-stop working) design, designed to address the requirements of large RS-485 systems in complex electromagnetic field environments. So, what is a 485 hub and what are the RS-485 hub product features and technical parameters? Next we will follow the fly smooth technology of the editor to learn more about it!
485 hub product introduction.
RS-485 hub is a RS-485 bus splitting hub (HUB) with internal dual-core, non-stop (non-stop working) design, designed to address the requirements of RS-485 large systems in complex electromagnetic field environments. The product supports transmission rate up to 115.2KBPS. To ensure safe and reliable data communication, the RS-485 interface end uses opto-isolation technology to prevent lightning surges from being introduced into the converter and equipment, and the built-in opto-isolator and 1500W surge protection circuit can provide 2500V isolation voltage, which can effectively suppress lightning (LighTIng) and ESD. At the same time, it can effectively prevent lightning strike and common ground interference, and the power supply adopts external switching power supply, which is safe and reliable and ideal for outdoor engineering applications.
The RS-485 interface has a transmission distance of more than 3000 meters and stable performance. Advantech RS-485 hub is widely used in highway toll collection system, road monitoring system and power collection system, it is a data interface conversion product with excellent performance and good price.
RS-485HUB provides star type RS-485 bus connection. Each port is protected by short circuit and open circuit. With optical isolation 2500V, users can easily improve RS-485 bus structure, split network segments and improve communication reliability. When a lightning strike or equipment failure occurs, the network segment with the problem will be isolated to ensure the normal operation of the other segments. This performance greatly improves the reliability of the existing RS-485 network and effectively reduces the maintenance time of the network. Proper utilization of RS-485 HUB can help you design a unique and highly reliable RS-485 system.
485 hub product features.
Industrial-grade optoelectronic isolation: provides more than 3KV optoelectronic isolation for all RS-485 interfaces, effectively solving the transmission problems caused by external lightning surges and ground potential differences.
Short-circuit open circuit protection: with RS-485 port fault alarm function and the ability to automatically cut off the faulty port, this design can ensure that when the connected RS-485 port device in it fails, the problem RS-485 port will be isolated to ensure the normal operation of other network segments.
Star connection: provide more flexible RS-485 star bus structure RS-485 interface inputs and outputs are driven independently, changing the original bus single type structure for the network structure brings great benefits to the engineering construction and system stability.
Automatic control of data flow direction: solve the data flow direction problem through hardware, automatically discriminate and control the data transmission direction.
485 hub technical parameters.
Electrical interface: Serial interface bit terminal Transmission medium: Super Category 5 twisted pair shielded wire or 485 special line Working mode: Asynchronous work, point-to-point or multi-point, 2-wire half duplex
Transmission distance: RS-485 end 1200 meters, RS-232 end recommended no more than 5 meters
Size: 120L * 80W * 25.5H mm (with terminal block size: 140L * 105W * 25.5H mm)
Operating environment: Temperature: -20℃-60℃, Humidity: 5%-95%.
