9
2 .2 Start-up sequence
1. Immediately after start-up, all the
Signal indicator
diodes and the test
diode switch on briefly (see the following figure).
2. The two
Signal indicator
diodes at the bottom flash until the module has
been initialised correctly (approx. 1 min.). When the diode at the bottom
stops flashing, the module has been connected to the network (after
approx. 5-10 secs.).
3. Now, the signal indicator will show the current signal level.
4. If the module is configured for communication via GPRS, the GPRS diode
switches on as soon as the module is connected to the GPRS network
(approx. 20 secs. after start-up).
5. All diodes will turn off automatically after 10 min.
Diode for antenna selection:
External or internal
Test diode
Test button
for alternative
signal test
GPRS diode
Diodes for
signal strength
indicator
1
2
3
4
5
