POSline ITT4300 Label Printer
6
3. Interface Specifications
Introduction
This appendix presents the interface specifications of IO ports for the
printer. These specifications include pin assignments, protocols and
detailed information about how to properly interface your printer with
your host or terminal.
Serial
•
The RS232 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 KDU (keyboard device unit) only, therefore do not
connect this pin if you are using a general host like a PC.
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