User`s guide

152 Agilent E6474A User’s Guide
B GPS Connections for E74xx Systems
Trimble Placer GPS 455DR
If you are using Dead Reckoning, you must connect the Sensors
cable. This cable requires a connection to the vehicle’s
odometer pulse signal. (See “Heading Sensor Cable
Connections" on page 153 for details.) Contact Customer
Support for assistance in locating the lead for this signal within
your vehicle. After installation, the odometer pulse and heading
sensors must be calibrated. See “Sensor Calibration" on
page 154 for more information.
Cable Connections to the Panel
The following are general instructions for connecting the
Trimble Placer cables. Specific configurations that utilize
Differential GPS and/or the
DIGITAL I/O port are shown in the
examples on the following pages.
1 Connect to the GPS antenna to the GPS connector (see ).
2 Connect the RS-232 navigation data cable (p/n 8120-8650) to
the
RADIO port.
3 Connect the opposite end of the cable to one of the following:
• GPS RS-232 port of the E645xx receiver (if equipped)
• An unused port of the Dual Serial Port PCMCIA card
• The AUX port of the E6473B High Speed Direct Connect
Hub
4 If your system is equipped with a Differential GPS receiver,
see “Phone, Receiver with GPS, and Optional Differential
GPS" on page 158 for cable connections.
Figure 59 Trimble Placer GPS 455 cable connections