Fibocom L831-EAU-01 - LED#1 Signal; WAKE_WWAN# Signal

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L831-EAU-01 Hardware User Manual Page
27
of
39
Pin
Pin Name
I/O
Reset Value
Pin Description
Type
23
WAKE_WWAN#
O
PU
Module wakes up Host (AP).
active-low (not support yet)
CMOS 1.8V
48
TX_BLANKING
O
PD
PA Blanking output
(not support yet)
CMOS 1.8V
3.6.1 LED#1Signal
The LED#1 signal is used to indicate the operating status of the module, and the detailed description as
shown in the following table:
Module Status
LED1# Signal
RF function ON
Low level (LED On)
RF function OFF
High level (LED Off)
Date interaction
LED flashing
The LED driving circuit is as follows:
Figure 3-16 LED Driving Circuit
Note:
The resistance of LED current-limiting resistor is selected according to the driving voltage and
the driving current.
3.6.2 WAKE_WWAN#
The module can wake the Host (AP) by WAKE_WWAN# signal when there is data request, L831-EAU
does not support waking the Host by WAKE_WWAN# signal.