Oxford Technical Solutions Ltd Page 4 of 110
Operation ................................................................................................................................................................................................... 26
Front panel layout ............................................................................................................................................................................. 26
LED definitions ................................................................................................................................................................................... 26
I/O connectors .................................................................................................................................................................................... 27
User cables .......................................................................................................................................................................................... 30
Digital inputs and outputs ............................................................................................................................................................. 34
1PPS output .................................................................................................................................................................................... 34
Trigger 1 and 2............................................................................................................................................................................... 34
Wheel speed input ....................................................................................................................................................................... 35
IMU sync output pulse ................................................................................................................................................................ 36
Co-ordinate frame conventions .................................................................................................................................................. 36
IMU frame ........................................................................................................................................................................................ 36
OxTS NED navigation frame ..................................................................................................................................................... 37
ISO 8855 ENU earth-fixed system ......................................................................................................................................... 38
OxTS horizontal frame ................................................................................................................................................................ 39
ISO 8855 intermediate system ............................................................................................................................................... 40
OxTS vehicle frame ...................................................................................................................................................................... 41
ISO 8855 vehicle system ........................................................................................................................................................... 41
Ethernet configuration .................................................................................................................................................................... 42
Connection details for Ethernet configuration ................................................................................................................. 44
Dual antenna systems ..................................................................................................................................................................... 44
Multipath effects on dual antenna systems ...................................................................................................................... 45
Configuring the RT ................................................................................................................................................................................. 47
Overview ................................................................................................................................................................................................ 47
Working through NAVconfig .......................................................................................................................................................... 47
NAVconfig Home section in NAVconfig ..................................................................................................................................... 48
Start/Read Configuration section in NAVconfig .................................................................................................................... 49
Read Configuration section ........................................................................................................................................................... 49
Hardware Setup section in NAVconfig ...................................................................................................................................... 50
IMU orientation tab ...................................................................................................................................................................... 51
Primary antenna tab ................................................................................................................................................................... 52
Secondary Antenna tab .............................................................................................................................................................. 53
Lateral No-slip and Vertical No-slip tabs ............................................................................................................................ 55
GNSS Differential Corrections tab .......................................................................................................................................... 57
NTRIP ................................................................................................................................................................................................. 59
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