Connect two serial port into one serial port -


i want connect 2 serial port 1 serial port. suppose there 3 system a,b , c.

enter image description here

a,b , c connected each other using serial communication (rs232 port) star connection. so, here situation. when system c send data system , system b, send both system. when system or system b send data not received system c.

so want know how communicate serial port device other serial port device (multiple device).

this cannot work. have connect 2 tx lines 1 rx line, rs-232 (unlike e.g. ethernet) not shared-medium protocol , cannot detect tx collisions (when 2 devices try talk @ same time).

you need implement device in middle forwards receives other devices. then, have know protocol other devices speaking prevent interrupted messages (e.g. stopping @ newline characters).


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