Network Status Indication - Quectel EG91 Series Hardware Design

3.14. Network Status Indication

The module provides one network indication pin: NETLIGHT. The pin is used to drive a network status
indication LED.
The following tables describe the pin definition and logic level changes of NETLIGHT in different network
status.
Table 15: Pin Definition of Network Status Indicator
Pin Name Pin No.
NETLIGHT 21
Table 16: Working State of Network Status Indicator
Pin Name Logic Level Changes
Flicker slowly (200 ms High/1800 ms Low)
Flicker slowly (1800 ms High/200 ms Low)
NETLIGHT
Flicker quickly (125 ms High/125 ms Low)
Always High
A reference circuit is shown in the following figure.
Figure 26: Reference Circuit of Network Status Indication
EG91_Series_Hardware_Design
I/O Description
DO Indicate the module's network activity status
LTE Standard Module Series
Comment
1.8 V power domain
Network Status
Network searching
Idle
Data transfer is ongoing
Voice calling
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