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Chapter 3
Getting Started
428LT Operator’s Manual - 880040-0200
3-3
For a 25-pin serial communication port – Use a 25-pin female to 9-pin male cable.
For a 9-pin serial communication port – Use a 9-pin female to 9-pin male cable.
9 to 9 Pin Cable
9 to 25 Pin Cable
State
DE-9
Pin #
Signals /
Directions
PC
DE-9
Pin #
State
DE-9
Pin #
Signals /
Directions
PC
DB-25
Pin #
XX
1
DCD
DCD
1
HI
1
DCD
DCD
8
XX
2
TXD
RXD
2
XX
2
TXD
RXD
3
XX
3
RXD
TXD
3
XX
3
RXD
TXD
2
HI
4
DTR
DSR
4
HI
4
DTR
DSR
20
LO
5
GND
GND
5
LO
5
GND
GND
7
HI
6
DSR
DTR
6
HI
6
DSR
DTR
6
DC
7
RTS
CTS
7
DC
7
RTS
CTS
4
XX
8
CTS
RTS
8
XX
8
CTS
RTS
5
HI
9
+5V
+5V
9
HI
9
+5V
-
DC = DO NOT CARE
XX = INDETERMINATE
Table 3-1
RS-232 Cable Configurations
3.4 USB Communication Interface
The 428LT printer provides a single USB port for communication to a host device. In order
to communicate with the printer, the FTDI USB driver must be installed on the host
computer. This may be downloaded at http://www.microcomcorp.com/drivers.htm. The
FTDI driver is a CDM driver that provides access to both virtual COM port (VCP) and FTDI’s
proprietary “direct” (D2XX) interfaces allowing use of a terminal emulation program to
communicate with the printer using a standard USB cable with a Type-A (host computer)
and Type-B (428LT printer) connectors.
3.4.1
FTDI USB Driver Installation
The FTDI USB Driver installation should be performed prior to connecting the printer’s USB
port. Select the CDM 2.04.16.exe and follow the on screen instructions.
3.5 AUX Option
The AUX port option or auxiliary port on the printer provides support for an optional sensor
that reports the >INPUT 2< message when the sensor is tripped. This generic sensor input
may be configured to report the message when the signal is active low of high. The control
for this sensor is located on position 2 of the ^D23 command; ^ABx1xxxxxx^D23.
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