4. Each Component Function
PT-310 User’s manual
25
RS-232C Serial Port: SERIAL A, B
The product has 1 ports of RS-232C compliant serial ports supporting up to a baud rate of 115,200bps with
a 16-byte transmission-dedicated data buffer and a 16-byte reception-dedicated data buffer.
Table 4.7. Serial Port Connector
Connector type
9-pin D-SUB (MALE)
NoPin No. Signal name
Meaning
Direction
1
CD
Carrier detect
Input
2
RD
Received data
Input
3
TD
Transmitted data
Output
4
DTR
Data terminal ready
Output
5
GND
Signal ground
-----
6
DSR
Data set ready
Input
7
RTS
Request to send
Output
8
CTS
Clear to send
Input
9
RI
Ring indicator
Input
1
5
9
6
No.4-40UNC
Inch screw threads
