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
Cellular modem status can be checked at a glance by looking at the status bar.
Icon | Details |
|---|---|
| Cellular modem is connected to network, but not to the internet (no data connection). Possibly on purpose, because an Ethernet or WiFi connection is available. |
| Cellular modem is properly configured, the 4G/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 cellular 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:
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