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Set Up Your System 3
Agilent E6474A User’s Guide 49
Figure 19 External GPS - Placer 455
Example 3 - Placer 455 with differential GPS
Refer to Figure 20 on page 50.
1 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.
2 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.
3 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.