Nexus RACE BOX, Инструкция по установке и эксплуатации

Страница: 19 / 44

English RaceBox
18
To ping the left hand end of the line, slowly bring your boat's bow as close to the pin as
you can. When your bow is as close as it can get, do three quick presses on the button.
If you do it correctly, the server buzzer will emit three short beeps and the info light on
the Race Box will light on solid.
If you ping the left hand end of the line first, the green info light will flash rapidly, then
light solid when you pine the right hand end.
At this point, the location of both ends of the starting line, as well as its compass
bearing, have been computed and stored in the Race Box's memory. We're now ready
to start!
4.8 In Sequence Data vs Out Of Sequence Data
As mentioned earlier, the Nexus system has a number of “custom fields” into which we
can send whatever data we like. The NX2 series, including the Multi XL instruments,
offers the CAD, CFD and TBS fields. TBS is only used for speed targets, so that leaves
us with just CAD and CFD. The NXR series offers ten additional fields, called custom 0
through custom 9.
The Race Box attempts to expand options by allowing the crew to configure it to send
certain data to a particular field while in the starting sequence, and other data to that
same field both before the starting sequence has begun and after the starting sequence
is complete. For example, we might display “Time To Burn – TTB” in the CFD field for
the period of time between when we started the timer and when the gun sounds. At the
gun, the CFD field will change and display optimum apparent wind angle.
Data which is sent to any particular field during a starting sequence is referred to as “in
sequence data” while data sent to any particular field before the start timer is started or
after the timer reaches zero is referred to as “out of sequence data.”
4.9 Configuring which data is sent to which fields
As discussed earlier in the overview, the Race Box primarily accepts data from the
Nexus server, performs various calculations on this data and sends the results back to
the Nexus server to be published on the Nexus network.
With one exception, the various fields in the Nexus network accept data and only
display it. The exception is the TBS field. Instruments can display the TBS sent to them
in knots, but also have special features which can show more information about TBS,
such as the percentage your current boat speed is above or below your current TBS.
Therefore, it only makes sense to send either TBS or PBS to the Nexus TBS field.
The Classic and NX2 instruments, including the Multi XL, can accept two additional
fields, called CAD and CFD. The CAD field can display values from 0 to 359 as whole
numbers. The CFD field can accept data from ? To ?, but with decimal
portions. Because of differences in how these fields display data, its better to send