6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator
• RS232C cable
Connector : 9-pin D-Sub
Cable : Cross cable
-P1- -P1- -P2- -P2-
FEMALE Rx
Tx
Gnd
2
3
5
--------->
<---------
----------
3
2
5
Tx
Rx
Gnd
FEMALE
• Connecting method
Control codes• Get control
Header command ID DATA Length CheckSum
0xAA command type 0
• Set control
Header command ID DATA
Length
DATA CheckSum
Introduction