Functional Diagram - Quectel QuecOpen AG521R-NA Hardware Design

and maintain functions such as voice, SMS, data transmission and emergency call, without any unrecoverable
malfunction. Radio spectrum and radio network will not be influenced, while one or more specifications, such
as P , may undergo a reduction in value, exceeding the specified tolerances of 3GPP. When the temperature
out
returns to the normal operating temperature level, the module will meet 3GPP specifications again.
3)
3. Within eCall temperature range, the emergency call function must be functional until the module is broken.
When the ambient temperature is between 75 ° C and 90 ° C and the module temperature has reached the
threshold value, the module will trigger protective measures (such as reduce power, decrease throughput and
unregister the device) to ensure the full function of emergency call.
"*" means under development.
4.

2.3. Functional Diagram

The following figure shows a block diagram of the module and illustrates the major functional parts.
⚫
Power management
⚫
Baseband
⚫
LPDDR4X + NAND flash
⚫
Radio frequency
⚫
Peripheral interfaces
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Automotive Module Series
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