I. Product Overview
YT-3220 is an RS-485 bus split hub (HUB) designed specifically to meet the requirements of RS-485 large-scale systems in complex electromagnetic field environments. This product supports a transmission rate of up to 115.2KBPS. In order to ensure the safety and reliability of data communication, the RS-485 interface adopts a built-in surge protection circuit, which can effectively suppress lightning and ESD, prevent lightning surge from being introduced into the converter and equipment, and effectively prevent lightning strikes and common ground interference. The power supply adopts a built-in power supply, and the product shell is made of ABS flame-retardant material, which is safe and reliable, Very suitable for indoor and outdoor engineering applications. In the RS-485 working mode, the discrimination circuit used can automatically sense the direction of the data flow, and automatically switch the enabling control circuit, easily solving the problem of RS-485 transmission and conversion delay. The RS-485 interface has a transmission distance greater than 1200 meters and stable performance. It is widely used in power acquisition system, industrial automation system, security monitoring system, Door security, parking lot management system, highway toll collection system, and road Lighting control system. It is a 485 data bus product with excellent performance.
YT-3220 RS-485HUB provides a star shaped RS-485 bus connection. Each port has a fault isolation protection function, and any one or multiple faults in the 16 output channels do not affect communication with other ports. Users can easily improve the RS-485 bus structure, divide network segments, improve communication reliability, and effectively shorten network maintenance time. Reasonable utilization of YT-3220 RS-485HUB can help you design a unique and highly reliable RS-485 communication system.
II. Performance parameters
1. Interface characteristics: 20 independent amplifiers, compatible with EIA/TIA RS-485 standards
2. Electrical interface: RS485 input/output is a card terminal.
3. Transmission medium: twisted pair or shielded twisted pair.
4. Working mode: asynchronous half duplex
5. Working power supply: AC three-phase/single 220V 50Hz DC9-36V
6. Shell material: ABS flame-retardant material
7. Housing protection performance: The protection performance of the hub housing meets the requirements of IP51 level, which can effectively prevent dust and dripping
8. Signal indication: power indicator light (green), communication indicator light (orange), internal 16 channel receiving indicator light (485-1-485-16)
9. Transmission rate: 115.2K-300BPS
10. Protection level: Each line of the input RS485 interface has independent high-power TVS lightning surge protection, while the output high-power TVS increases the power discharge tube to enhance protection
11. Transmission distance: 0-1.2 kilometers (115.2K-300BPS)
12. Operating environment: -40 ℃ to 85 ℃, relative humidity of 5% to 95%
System parameters
Interface: Compliant with RS-485 standard
RS-485 signal: T/R+, T/R-
Working mode: Supports asynchronous transmission, point-to-point or multipoint, 2-wire half duplex
Baud: 300 ～ 115.2Kbps, automatic detection of serial port signal rate
Direction control: automatic discrimination and control of data transmission direction
Transmission distance: 1200 meters (9600bps) at RS-485 end
Lightning protection: RS-485 output provides 1500W lightning protection
Indicator light: Equipped with power and data flow indicators, which can be used to determine the type of fault.
Static electricity protection: 15KV static electricity protection
Work environment
Working temperature: -20 ℃ to 60 ℃
Humidity: Relative humidity 5% to 95%
Working power supply
Input power supply: 220V AC
Power consumption: Static power consumption within 1W, average dynamic power consumption within 2W
Mechanical structure
long × wide × Height: 260mmX160mmX90mm
Shell: Flame retardant rubber shell
Color: Computer Grey
Weight: 350g
Tel：0755-84664023、84660949 Fax：0755-84660949-816
