Microcom 438TM, Operator'S Manual

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Chapter 3 Getting Started
438TM Operator’s Manual - 880049-0113 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 438TM 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/support/drivers/.
3.4.1 USB Driver Setup
The Windows FTDI USB Driver may be installed on XP, VISTA, Windows 7, Windows 8, or
Windows 10.
If there is an available Internet connection, Windows will silently connect to the Windows
Update website and install any suitable driver it finds for the device once connected. If a
manual install is desired, follow the instructions below.
Run the CDM.exe driver to install the FTDI based USB.