3. Installation and configuration
3.1. Installation step-by-step
Follow the steps below to install the GX GSM:
Mount the device in a place that is not covered by metal objects. Consider using the optional outdoor antenna when installing the GX GSM in a closed metal enclosure, car, or van to increase the range.
Mount the supplied antenna to the SMA connector marked GSM or connect an optional external outdoor antenna if required.
An optional active GPS antenna is screwed onto the SMA connector labeled GPS.
Insert the SIM card. You will need to eject the SIM card tray with a pen or other pointy object. Be aware that the SIM card tray sits slightly recessed inside the unit. Be sure to push it all the way in.
Connect the GX GSM to the GX device with the supplied USB cable. Use a USB hub if all USB sockets are already in use.
Connect the DC power supply (8 to 70 VDC). A 1.4 m cable with M10 cable lugs and a built-in Slow Blow fuse 3.15A 250V, 5x20mm is included. Pay attention to the correct polarity as labeled on the front sticker.
After power-up, the blue LED will be solid blue. Once it has registered on a network, the LED will start blinking slowly. Finally, when the internet connection is established, the LED will blink quickly.
3.2. Configuration
The GX GSM is configured entirely via the connected GX device.
Setting a SIM-PIN helps reducing the risk of the SIM card being stolen and used. Use a mobile phone to set the SIM-PIN, and thereafter configure it on the GX device as follows:
When using a SIM card with its SIM-PIN security disabled, the system will work without further configuration.
Setting a SIM-PIN helps reducing the risk of the SIM card being stolen and used. Use a mobile phone to set the SIM-PIN, and there after configure it on the GX device as follows:
Go to Settings → GSM modem → PIN.
Enter the same PIN that was previously set in the mobile phone or provided by the network operator.
Go to Settings → GSM Modem → APN and set the APN name if necessary. Some mobile networks require manual configuration of an APN especially when roaming. Contact your network operator for details.
If you are installing the GX GSM in an area where you can expect internet coverage to be occasionally disrupted, you should enable the “Reboot device when no contact” option in the GX device's VRM menu. This will automatically restart the GX device and power cycle the GX if it has failed to transmit data to VRM for the configured time.
Caution
Note that if you are leaving internet service coverage areas (such as an RV on the move, or a boat leaving dock to go to sea), then it is recommend to disable this setting, so that your GX is not rebooting itself for no reason. Or set it, for example, to a two hour time-out and accept a reboot every two hours when underway.
Watch this video to learn how to connect via LAN, WiFi and the GX GSM: Connecting a Victron GX Device online and setting up a GX GSM