BỘ HUB CHIA RS-485 4 CỔNG/ 8 CỔNG

Product name

4-port/8-port RS-485 hub

Feature

·Star topology: offer more flexible RS-485/RS-422 star bus structure with RS-485 interface input/output adopting independent drive modes. Change the original single bus structure into network structure which can greatly enhance the stability for engineering construction and system
Industrial class photoelectric isolation: offer over 3KV of photoelectric isolation to all RS-485 interfaces, and effectively solve the transmission problems caused by outside lightning strike, surge and potential difference
Automatic data direction control: solve data direction problem through hardware, judge and control data transmission direction automatically
Short/open circuit protection: possess RS-485 port malfunction alarming function, and can cut off malfunctioned port automatically, which can ensure the isolation of malfunctioned RS-485 PORT connected with it in order to ensure the proper operation of devices in other net segments

Specification

Interface feature: interface is compatible with EIA/TIA  RS-232C, RS- 485 standard
Electric interface: RS-232C interface is RJ-45 socket
RS-485 interface is RJ-45 socket
Transmission media: twisted-pair cable or shielded cable
Working mode: asynchronous half duplex
Signal indication: 2 green signal indication lights indicate TXD, RXD and a red o­ne indicates power
Isolation: isolation voltage 3500VRMS 500VDC sequence
Transmission speed: 115.2K-300 BPS
Protecting grade: RS-232 interface+15KV ESD protection
RS-485 interface 600W lightning strike and surge protection o­n each line.
Transmission distance: 0-2 kilometers (57600-300BPS)
Size: 140mmx130mmx30mm
Working environment: -25℃ to 55℃,  5% to 95% relative humidity

Ordering information

AN-H-RS485-4

4 ports RS-232/485 bus split hub

AN-H-RS485-8

8 ports RS-232/485 bus split hub