Network Status Indication - Quectel EG12 Series Hardware Design

3.15. Network Status Indication

The network indication pins can be used to drive network status indication LEDs. The following tables
describe pin definition and logic level changes in different network status.
Table 21: Pin Definition of Network Connection Status/Activity Indicator
Pin Name Pin No.
NET_MODE 147
NET_STATUS 170
Table 22: Working State of the Network Connection Status/Activity 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
A reference circuit is shown in the following figure.
EG12_Hardware_Design
I/O Description
Indicate the module's network
DO
registration mode.
Indicate the module's network
DO
activity status.
Module
Network
Indicator
Figure 27: Reference Circuit of the Network Indicator
Description
Registered on network
Others
Network searching
Idle
Data transfer ongoing
Voice calling
VBAT
2.2K
4.7K
47K
LTE-A Module Series
EG12 Hardware Design
Comment
1.8V power domain
If unused, keep it open.
1.8V power domain
If unused, keep it open.
56 / 97