Q1. How to use 9223K to send RS-232 commands to other RS-232 controlled devices?
Ans:
The 9223k can be to send commands to any devices that can be controlled by RS232?
You can simply use the commands provided below to do the following:

9223k to control other devices using RS232

http://192.168.1.5/Set.cmd?user=admin+pass=12345678+CMD=SetSerBdRt+BD= 《set baud rate》
Ex: http://192.168.1.5/Set.cmd?user=admin+pass=12345678+CMD=SetSerBdRt+BD=19200

http://192.168.1.5/Set.cmd?user=admin+pass=12345678+CMD=SetSerTxSt+Str=《Send string commands》
Ex: http://192.168.1.5/Set.cmd?user=admin+pass=12345678+CMD=SetSerTxSt+Str=SetPort=1111

http://192.168.1.5/Set.cmd?user=admin+pass=12345678+CMD=SetSerRxSt《Clear Buffer》
Ex: http://192.168.1.5/Set.cmd?user=admin+pass=12345678+CMD=SetSerRxSt