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CLM920_NC3_LTE Module hardware manual
Shanghai Yuge Information Technology co., LTD
- 40 -
BLE#
control
VIL
-0.3
0.6
5
GPIO_2
IO
This pin function
has not been
defined
RESERVE,
please keep
it floating
WAKEUP_IN:
This pin is the host wake-up module pin. When the WAKEUP_IN signal is pulled low,
the host can wake up the module.
AP_READY:
The AP_READY pin can be used in the module to detect if the host is woken up. It can
be configured for high level detection or low level detection.
W_DISABLE#
:
Flight mode control, when the CLM920 NC3 module W_DISABLE# signal is pulled low,
the module RF function can be turned off, the module can enter the flight mode, and the
module can be turned on to open the module RF function. It can also be set to flight mode by
AT+CFUN. For details, please refer to the 9x07 AT command set.
3.9 Network status indication interface
The CLM920 NC3 module provides an open-drain GPIO signal to indicate RF
communication status.
Table 3-14 Network indicator pin definition
Pin
Signal name
I/O
Description
6
NET_STATUS
OD
Network status indication
Table 3-15 Network indication status
Status
LED display status
No service
Constantly bright
Module registration on non-4G network
Slow flash
The module registers 4G network or module to register non-4G
network for voice SMS and other services.
Fast flash
LED network indicator reference design is as follows
: