发表于:2006/7/26 13:21:00
#0楼
ADuM1402两边需地不同的Vcc和Gnd,请问如何取RJ45端的VCC
可以用RJ45的第7pin来取电吗?
MODBUS over serial line specification and implementation guide V1.0中说RJ45第7pin是recommended VP,并不是required.
可以用RJ45的第7pin来取电吗?
MODBUS over serial line specification and implementation guide V1.0中说RJ45第7pin是recommended VP,并不是required.