A purpose 

 Boston EH485C type RS-485/RS-422 RS-485/RS-422 drive enhancer for enhanced capacity of the mouth of the drive (with a load capacity). EH485C RS-485/422 driver with Boston's unique double (Double Drive) technology. For the full-duplex half-duplex EH485C common, can also RS-485 (half-duplex) and RS-422 (full duplex) between the conversion. 

 Second, installation and performance 

 RS-485/422 communication line in the series with a EH485C type RS-485/RS-422 driver enhancement, can be RS-485/422 triple the original drive capacity. EH485C supports up communications rate of 57.6Kbps, also has absorbed the anti-1000W lightning surge current protection. As EH485C RS-485/422 driver with Boston's unique double technology (Double Drive) and the unique zero-latency intelligent transceiver internal conversion technology, so ensure that for all full-duplex, half duplex communication software. 

 EH485C type RS-485/RS-422 driver and RS-485/422 repeater enhancer difference is: Repeater RS-485/422 only the original drive capacity of the return, that the Following the output is still 1 times the drive capability, while Boston-based RS-485/RS-422 driver EH485C RS-485/422 repeater enhancer has all the features, but the output is 2 times the drive capability. Such as the original RS-485/422 port 128 can only take the next crew, through EH485C output after 256 can bring the next crew. If we add the original drive RS-485/422 capability itself (such as 128) is a total of up to 384. 

 Three Drawings 

 EH485C DB-25/DB-25 adapter box shape for the size, as shown.