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1 STARTER KIT
10 Copernicus GPS Receiver
Serial Port Interface
The Copernicus GPS interface unit has a dual port USB interface that is available
through a single A-type USB connection. Before the starter kit can be used with a
USB 2.0-equipped Microsoft Windows (2000, XP)-based PC, the appropriate USB
2.0 drivers must be installed on the PC.
Loading the FTDI Driver
The Copernicus GPS uses a USB 2.0 interface chip from Future Technology Devices
International Ltd. (FTDI). The FTDI driver must be downloaded and installed on
your PC before you can run the Trimble GPS Monitor (TGM) application used to
communicate with the Copernicus GPS.
1. Use the following URL to access the FTDI drivers:
http://www.ftdichip.com/Drivers/VCP.htm
2. Download and install the appropriate VCP (Virtual COM Port) driver for your
operating system (Win'98 / ME /2000 / XP). Select the option with FT2232C
series support. Follow the instructions provided on the Web site and with the
driver. (http://www.ftdichip.com/Documents/InstallGuides.htm)
3. Use the supplied USB cable to connect the Copernicus GPS interface unit to
your PC. The FTDI driver automatically assigns two (2) virtual COM ports to
the USB port. Use the Windows Device Manager to determine which COM
Ports have been assigned to the USB port.
Default Settings
The default settings on the interface unit USB Port are provided in Table 1.1.
Table 1.1 Serial Port Default Settings
Virtual
Ports
Port
Direction
Protocol Baud Rate Data Bits Parity Stop Bits Flow
Control
ATXD-A
RXD-A
TSIP-Out
TSIP-IN
38.4 K
38.4 K
8
8
None
None
1
1
NO
NO
BTXD-B
RXD-B
NMEA-Out
NMEA-IN
4800
4800
8
8
None
None
1
1
NO
NO