User`s guide

GPS Connections for E74xx Systems B
Agilent E6474A User’s Guide 163
4 Connect the GPS RS-232 port of the Agilent E645x receiver to
the GPS RS-232 port of the adapter box, using the RS-232
cable.
5 Connect the RTCM port of the Trimble-supplied
communications cable to the differential GPS receiver, using
the RS-232 cable included with the system. Connect the
remaining port of the Trimble-supplied communications
cable to the MDT/RTCM port of the Trimble Placer GPS 455
unit.
6 Connect the digital port of the adapter box to the Digital IO
port of the Trimble Placer GPS 455 unit, using the RS-232
cable.
7 Connect the MDT/RTCM port of the adapter box to the MDT
port of the Trimble-supplied communications “T” cable,
connected to the Differential, using the RS-232 cable.
8 Connect the GPS antenna to the GPS ANT port of the Trimble
Placer GPS 455 unit. Agilent Technologies recommends that
a “bulkhead mount” GPS antenna be used whenever possible
for improved performance.
9 Connect the VHF Differential GPS antenna to the Differential
GPS unit.
10 If equipped, connect the phone interface cable to the phone.
Connect the opposite end to an unoccupied port of the Dual
Serial Port PCMCIA card.
11 Connect the power cables to the Trimble Placer GPS 455, the
Agilent E645x receiver, and the computer. Connect the
lighter plug for each device to the 4-to-1 lighter socket
adapter.