3onedata | Serial device server | SW4485 | industrial automation0 pages
Industrial Device Networking Server
SW4485 HUB
Feature
◎ Support two RS-232 and RS-485 PC interfaces , and 4 RS-485 lower position controller ports
◎ Support baud rate from 300bps to 115200bps
◎ Each lower machine interface can be connected to 32 standard RS-485
devices(nodes)
◎ Unique automatic circuit reverse alarm detection
◎ Have automatic transceiver conversion function with zero delay
◎ Support hot swap function, plug and play
◎ Interface has 2KVAC isolation protection, 8KV ESD protection
(contact discharge) and 2-stage radiation immunity
◎ Industrial design, IP40 protection
◎ Support DIN-Rail and wall mounting installation
◎ Working Temperature: -40~85℃
Introduction
SW4485 is a RS-485 bus segmentation HUB, specially designed for conforming to
RS-485’s large-scale
system requirements under the complex electromagnetic environment. Its supporting transmission rates reach up to
115.2Kbps. It adopts transparent transmission in both directions. It can convert 1 RS-485 or RS-232 to 4 RS-485,
or transparently transmit any intersected RS-485 signal to
RS-485 or RS-232 on PC. Each RS-485 port of its
lower position controller has reverse fault alarm and protection function, through which,the network reliability of
RS-485 has been improved, and the maintenance time of network has been shortened efficiently. In order to ensure
the safety and reliability of data communication, the RS-485 interfaces of SW4485 are supplied with 2KVAC
isolation protection, 3 levels of ESD protection and 2 levels of electrostatic radiation protection; they can prevent
lighting, common ground and radiated interference, safe and reliable, are suitable for outdoor application.
SW4485 also provide star-RS485 BUS connection. Users can easily improve the RS-485 BUS structure, split
network segment. You can design a unique and reliable RS-485 system through making reasonable use of
SW4485.
SW4485 adopts EMC protection design, supports wall-mounting and panel-mounting installation, and can be
used at the harsh environment from -40℃ to 85℃.
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