User's Manual
Table Of Contents
- Copyright
- Attention
- Trademark
- Versions
- Applicable Model List
- Foreword
- Product Overview
- Structure
- Hardware Introduction
- Hardware Interface
- Electrical and Environmental Characteristic
- RF Interface
L811-EA Module Hardware User Manual Page
30
of
43
Idle (unregistered)
600ms high level and 600ms low level
Idle (registered)
75ms high level and 3s low level
Voice communication (Call)
Always low level
Data communication
75ms high level and 75ms low level
Sleep (sleep mode)
Always high level
5.3.3 WAKEUP_HOST Signal
The WAKEUP_HOST signal is used to wake up the host when there are incoming calls, SMS or other
data requests.
Status
WAKEUP_HOST Signal
Default
High level
Waking HOST(telephone ringing/SMS/other data
request)
Low level
5.3.4 PA_BLANKING Signal
The default is low for the signal. While the module works in GSM frequency band, PA_BLANKING will
output the pulses that synchronized with the GSM burst timing sequence.
Due to the GSM TX may interfere the receiving of the GPS signal, AP can turn off GPS or stop receiving
data from the GPS when it detecting the PA_BLANKING pulses.
Operating modes
PA_BLANKING Signal
Default modes
Low level
GSM TX
Output the pulse signal that synchronize with the GSM burst