4
Connection to the ports (continued)
C
CONTROL
D-sub 9pin plug
• About the details of RS-232C communication,
please refer to the next chapter.
Pin
Signal
Pin
Signal
Pin
Signal
1
(No connection)
4
(No connection)
7
RTS
2
RD
5
Ground
8
CTS
3
TD
6
(No connection)
9
(No connection)
6
5
4
3
2 1
9
8
7
C