31
Preparations
1
1 Preparations
1.4
RS232C
1.4.1 Cable
Connection
RS232C Cable
Pin assignment
Interface
RS232C (9 pins)
Pin
TxD (No. 2), RxD (No. 3), GND (No. 5)
Bit rate
9600 bps
Data bits
8 bit
Parity
None
Stop bit
1 bit
Flow control
None
Maximum length
15m (only shielded type)
Pin
Signal
1
Detect data carrier
2
Received data
3
Transmitted data
4
Prepare data terminal
5
Signal ground
6
Prepare data set
7
Send request
8
Clear to send
9
Ring indicator
1 2 3 4 5
6 7 8 9