Network Status Indication - Quectel UC20 Manual

The following table describes the characteristic of the ADC function.
Table 18: Characteristic of the ADC
Parameter
ADC0 voltage range
ADC1 voltage range
ADC resolution
Offset error
Gain error

3.15. Network Status Indication

The network indication pins can be used to drive a network status indicator LED. The module provides
two pins which are NET_MODE and NET_STATUS. The following tables describe pin definition and logic
level changes in different network status.
Table 19: Pin Definition of Network Indicator
Pin Name Pin No.
NET_MODE 5
NET_STATUS 6
Table 20: Working State of the Network Indicator
Pin name Status
Always High.
NET_MODE
Always Low.
Flicker slowly (200ms High/1800ms Low).
Flicker slowly (1800ms High/200ms Low).
NET_STATUS
Flicker quickly (125ms High/125ms Low).
Always High.
UC20_Hardware_Design
Min. Typ.
0.2
0.2
15
3.5
2.5
I/O Description
Indicate the module network
DO
registration mode.
Indicate the module network activity
DO
status.
Confidential / Released
UMTS/HSPA Module Series
UC20 Hardware Design
Max. Unit
2.1 V
4.2 V
bits
%
%
Comment
1.8V power domain.
1.8V power domain.
Description
Registered in 3G network.
Others.
Networks searching.
Idle.
Data transfer is ongoing.
Voice calling.
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