Appendix C— Communications Reference
102 3400, 3440, and 3600 Bar Code Label Printer User’s Manual
Printer Serial Port
The rear panel of the printer contains the serial port connector. It is a 25-
pin D-style subminiature receptacle. The port is wired as a data terminal
equipment (DTE) device.
3XXXU.063
13
12
11
10
9
8
7
6
5
4
3
2
1
25
24
23
22
21
20
19
18
17
16
15
14
PS
SG
CTS
RTS
RD
TD
GN
DTR
Serial port pin assignments: This illustration shows the serial port pin assignments.