9
4.2.3 Connected to 2G/3G network and meter
The network to which the module is connected, 2G and/or 3G, appears from
the diodes at the bottom of the module. More than one diode can be turned
on. Furthermore, the red METER diode flashes if there is no connection between
meter and module because the module has not been inserted correctly.
METER GPRS
3G
4.2.4 Signal strength indicator
When the signal strength is less than 2, an external antenna must be mounted.
If an external antenna has already been mounted, it should be repositioned to
obtain the required signal strength.
Very good
Good
Acceptable
Low
4.2.5 Error indication
If one of the diodes flashes, it means the following:
Flashing
Communication error with modem
Flashing
Missing network registration
Flashing
No SIM card
Flashing
SIM card PIN locked
4.2.6 External antenna
When mounting an external antenna, the Ext Ant diode turns on. For
further details, see chapter 6 “Mounting of external antenna (to be ordered
separately)”, page 11.
EXT ANT
Note that all diodes will turn off after 10 min.
They can be reactivated by pushing the test button.
