L831-EA Module Hardware User Manual
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5.8.2 Description of GPS_DISABLE# Interface
L831-EA module provides through hardware to open/close GPS function signal, this function can also
control by AT commands.
Pin# Name
I/O
Description
26
W_DISABLE
2#
I
GPS open/close signal , and the
signal with 1.8V
The definition of GPS_DISABLE# signal as listed below:
No.
GPS_DISABLE#
Description
1
Low
GPS closed
2
High
GPS open
3
Floating
The function of GPS defined by AT commands, keeps open by default.
Note: this function don`t support yet.
5.9 TX_BLANKING Interface
Output low level by default, the TX_BLANKING output the pulse signal that synchronized with GSM burst
timing while the module works in GSM band. Cause GSM transmitting may interfere the receiving of GPS
signal, close GPS or stop the data receiving of GPS while AP detected TX_BLANKING pulse signal.
Pin#
Name
I/O
Description
48
TX_BLANKING
O
External GPS control signal
5.10 The WAKEUP_HOST Interface
The module supports the WAKEUP_HOST function, the pin is high level by default, but it outputs low level
while awaking Host.
Pin#
Name
I/O
Description
23
WOWWAN#
O
The module wakes up Host signal with 1.8V
，
and low
level is available.
No.
W_DISABLE#
Function
1
Low
WWAN closed
2
High
WWAN opened
3
Floating
The function of WWAN defined by AT commands , and keep open by
default .
