I. Product Introduction
YT-2204B is a 4-port industrial grade optical isolation RS-485 hub. The YT-2204B 4-port optical isolation 485 hub can provide a more flexible RS-485 star bus structure. The RS-485 interface input and output terminals are independently driven, changing the original single bus structure to a network structure, bringing great benefits to engineering construction and system stability. Industrial grade photoelectric isolation: Provide 2.5KVrms photoelectric isolation for all RS-485 interfaces, effectively solving transmission problems caused by external lightning surges and ground potential differences. Automatic control of data flow, solving data flow problems through hardware, automatically identifying and controlling the direction of data transmission. Equipped with short circuit and open circuit protection function, RS-485 port fault alarm function, and the ability to automatically cut off the fault port. This design ensures that when the RS-485 port device connected to it fails, the faulty RS-485 port will be isolated to ensure the normal operation of other network segment devices
YT-2204B is designed with alloy shell, adopts wire pressing terminal interface, and is equipped with pluggable terminal blocks. It is flexible and convenient to use. It is widely used in point-to-point communication, industrial automation control system, all-in-one card, Door security, parking lot system, industrial distribution system, various remote control and measurement systems, POS cash registers, banks, insurance, securities, canteen food selling system, traffic charging system, various PLCs, data Electricity meter, gas meters, etc.
II. Product Features
1. Convert RS-232 data transmission (TXD) and data reception (RXD) signals into balanced RS-485/422 signals
2. External power supply with strong load capacity
3. Adopting data flow automatic control technology to automatically identify and control the direction of data transmission
4. Designed with photoelectric isolation scheme, it has strong anti-interference ability
5. Adopting dedicated DC/DC power isolation module to prevent common ground interference
6. Equipped with automatic fault isolation function, one fault does not affect normal communication of other channels
7. RS485 output provides 1200W lightning protection, surge protection, and+/-15kV ESD protection
8. Enhanced communication chip, supporting 128 points
III. inventory
1. One YT-2204B four way RS-485 hub;
2. One DC12V/500mA standard power supply;
3. 1 serial data cable
4. One user manual.
Tel：0755-84664023、84660949 Fax：0755-84660949-816
