4. Operation
4.1. SIM status
The SIM status is displayed on the GSM overview page on the GX device. The following table shows all possible states and their
meaning:
Status
Description
Ready
SIM card is installed properly and registered to the network.
SIM not inserted
SIM card is missing or not inserted properly. SIM tray might hang out a little.
PIN required
SIM card requires a 4 digit PIN for unlock.
PUK required
SIM is locked due to wrong PIN inputs. 8 digit PUK is required to release the lock state.
SIM failure
SIM does not respond - might be broken.
SIM busy
SIM is in busy state.
SIM wrong
Type of SIM is not supported.
4.2. Status Bar
GSM modem status can be checked at a glance by looking at the status bar.
Icon
Details
GSM modem is connected to network, but not to the internet (no data connection). Possibly on purpose, because
an Ethernet or WiFi connection is available.
GSM modem is properly configured, the 3G/EDGE etc. icon reflects that the cellular modem internet connection is
in use and what type of connection is applied.
WiFi is available and its internet connection is in use. WiFi has priority over GSM connection.
SIM-PIN code is required.
Roaming, only informative. To use internet connection while roaming, it needs to be enabled in Settings → GSM
modem → Allow roaming.
4.3. GPS
When the optional active GPS antenna is added, the position is sent to the VRM portal and also displayed in the GX device as
follows:
GX GSM manual
Page 6
Operation
