User`s guide

69
Serial Interface
The RS-232 connector on the printer side is a female, DB-9.
Pin
Direction
Definition
1
In
DSR
2
In
RxData
3
Out
TxData
5
-
Ground
6
Out
DTR
7
Out
RTS
8
In
CTS
9
Out
+5V
Note: Pin 9 is reserved for a KDU (keyboard device unit). Do not connect this pin
if you use a general host such as a PC
.