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10.1.3. GSM status
GSM Status
LEDs indicate:
GSM
LED- reflects current login to GSM network state.
•
lit - the module not logged in
•
flashing with app. 2 Hz frequency - the module is logged in
GPRS
LED - when lit, signifies proper login to APN.
LED indicators for
GSM Status
group reflect module's readiness to perform its duties.
Modules not logged in GSM/GPRS network are not able to transmit data and performs
cyclic resets and retries to log in.
10.1.4. GSM activity
LED indicators
Tx
and
Rx
of
GSM activity
signal, respectively, transmitting and receiving of
data via GPRS. Since SMS sending is a form of data transmission, both data frame
transmission and SMS transmission cause short flashes of
Tx
LED. Short flashes of
Rx
LED
indicate either SMS or data frame reception. This is an easy way of detecting transmission
activities.
Содержание MT-101
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