Figure 10. ISO 8855 vehicle system
The ISO vehicle frame is attached to the vehicle and rotates with it in all three axes. The X-axis remains
parallel to the vehicle’s heading, while the Y-axis points to the left and is perpendicular to the vehicle’s
vertical plane of symmetry.
Ethernet configuration
To configure the RT for unrestricted data transmission it is necessary to use the Ethernet
connection. The RT 500 and RT3000 v3 also support Wi-Fi data transmission and the
setup of WiFi is covered later in this manual. The operating system at the heart of the RT
products allows connection to the unit via FTP. The use of FTP allows the user to manage
the data logged to the unit; files can be downloaded for reprocessing and deleted to make
space for future files. Configuration files for alternative configurations require FTP to
put the configuration files on to the RT. The default username and password are both
“user”.
The RT outputs its data over Ethernet using a UDP broadcast. The use of a UDP
broadcast allows everyone on the network to receive the data sent by the RT. The data
rate of the UDP broadcast is 100 Hz or 250 Hz.
In order to communicate via Ethernet each RT is configured with a static IP address that
is shown on the delivery note. If the delivery note is unavailable, the default IP address
normally takes the form 195.0.0.sn, where sn is the last two digits of the RT’s serial
number. The serial number can be found on the top of the RT or on the delivery note.
The IP address of the computer being used to communicate with the RT may need to be
changed so it matches the subnet. For example, 195.0.0.200 should be available since
this IP address is never used by the RT by default.
To change the IP address of the computer, follow these steps (applies to Windows
Vista/7/8/10):
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