UC-08-M31 EN P1.0.3
UM982 Peripheral Design
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Table 5-1 Description of the LED Status
LED Indicator
Color
Description
Power (5V or 3.3V)
Green
Light on when the power is normal
Reset
Red
Light on when pressing the reset button
Antenna
Red
Light on when antenna is shorted
PVT
Green
Light on when position is fixed
RTK
Green
Light on when RTK is fixed
ERR
Red
Light on when failing self-test
UART
Green
Blinking when UART is working
The silkscreen markings on the right of the LED indicators identify the corresponding
function, as shown in the figure below:
Figure 5-2 Markings on the Right of the LED Indicators
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UM982 Peripheral Design
TVS anti-surge protection is added at the input of the UM982 module. ESD protection is
added at all pins.
Use large and small VCC filter capacitors together, with a total capacitance greater than
30 uF.
Add series resistors at the IO pins for the convenience of debugging.
Summary of Contents for UM982-EB
Page 24: ...Assembly Top of UM982 EB...
Page 25: ...Assembly Bottom of UM982 EB...
