Shanghai ZLAN Information Technology Co., Ltd Tel: +86-17321037177 http://www.zlmcu.com
4
1. Summary
ZLAN9440 is a 4 ports industrial isolation RS485 hub, can extend 4 channels RS485
sub-ports through 1 channel RS485/232 main port. It can effectively implement reply,
extension and isolation of RS485 network. ZLAN9440 can also be as an active
isolation RS232 to RS485 converter. If you only need 1 channel the model is
ZLAN9410.
Figure 1 ZLAN9440 appearance
The main port of ZLAN9440 provides isolation two interface RS485 and RS232 at the
same time, the sub-ports extend 4 channels isolation RS485 interface.
Generally the RS485 wiring require hand-in-hand wiring style, need avoid star
connection of master station as center. But sometimes need star connection, in this
case using RS485 hub can effectively isolate connection interference between
multi-RS485.
ZLAN9440 is active isolation RS485 hub, the product are specially designed for
industrial scene in harsh environment, is especially suitable for situations requiring
