Argox CP Series - Manual (Page 69)

69
Compact Printer Series - User
’s Manual
Serial Interface
The RS232 connector on the printer side is a female, DB-9.
Pin Signal Description
1 No function Shorted to Pin - 6
2
Received Data,
RxD
Input. Serial “Received Data”
3
Transmitted Data,
TxD
Output. Serial “Transmitted
Data”.
4 No function No connection
5 GND Signal Ground
6 No function Shorted to Pin - 1
7
Request to Send,
RTS Output. Used as the control
signal for “H/W Flow Control “
8 Clear to Send, CTS
Input. Used as the control
signal for “H/W Flow Control”
9 +5V
Output. Pin 9 is reserved for
KDU (keyboard device unit)
Note :
Pin 9 are reserved for KDU (keyboard device unit), therefore
do not connect these pins if you are using a general host like
a PC.