Topcon mmGPS 3D Paver, Reference Manual

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Introduction
mmGPS 3D Paver Reference Manual
1-12
• Aux LED and FN Button – only active in Dual GPS applications.
Figure 1-13. MC-2.5 Receiver Box Indicators
In normal mode, the LED indicates the number of tracked satellites
and the position’s computation status.
The MC-2.5 Receiver Box also has an extended information mode
(EIM) used for receiver testing purposes. In this mode, the receiver
continues to work as usual, but the LED indicates “extended”
information using a delimiter. The delimiter is a distinguishable
double-blink that shows the overall status of tests performed in EIM.
The LED color for delimiter is calculated from the colors of other
LED blinks.
• Orange – at least one blink is orange.
• Red – no orange blink and at least one red blink.
• Green – all other cases.
The delimiter double-blink is followed by six LED blinks
corresponding to six receiver tests, where each blink indicates the
following information:
Blink 1. Sufficient data for position computation.
Blink 2. GPS S/N ratios are good.
Blink 3. GLONASS S/N ratios are good.
Blink 4. Oscillator’s frequency offset is less than three ppm.
Blink 5. Oscillator’s Allan Variance is better than 2.7e-10.
Blink 6. Continuous tracking time is more than 15 minutes.
Radio RX LED
Red/Green
Main LED
Red/Green
Aux LED
Red/Green
Main Function
Button
Aux Function
Button