The LTE modem error message can have the following causes:
- The SIM card inserted in the LTE modem is defective or invalid.
- The SIM OIN was entered incorrectly in the web interface of the IP-based monitoring device.
- The included LTE antenna was not connected to the LTE modem.
- The LTE signal strength in the server room/data center is insufficient. Connect a second LTE antenna to the IT monitoring system (optional extra).
Yes. With the support of the internal LTE modem, you can connect to internet services (VPN, SMTP, FTP, etc.) and access the Didactum Monitoring System remotely.
Your Surveillance System 100 IV was delivered with the internal GSM modem. Therefore, the LTE options in the "LTE" tab are not available to you.
The second generation of the 100 series IT monitoring systems can only be equipped with a GSM modem.
The measurement and remote monitoring systems equipped with an LTE modem only support GPS position transmission if a suitable GPS antenna is also connected. You can find the GPS settings in the German web interface under "System settings" => "GPS". To activate the GPS function, you must check the corresponding box.
Ensure that your system has sufficient LTE signal strength. If the reception is too poor, a dedicated LTE antenna may help. You can find suitable LTE antennas in our online shop for infrastructure monitoring technology. Please also check whether your SIM card is enabled for LTE use. If you have a 3G SIM card, it often needs to be replaced with a 4G/LTE SIM card.
Starting with firmware version "2.8.3.b242" (May 2021), it is possible to use a static IP address to access the 4G LTE modem. This means you can avoid using a VPN server.
If the LTE mode of the networked measurement and monitoring system has been deactivated in the web interface (uncheck the "Activate LTE modem" box and click "Save"), no mobile data network connection will be established via the 4G LTE modem. The modem will then be used exclusively for sending warnings and alarm messages via SMS text message and telephone.
Using an external GSM or 4G LTE modem carries the risk of it being accidentally or intentionally disconnected from the monitoring unit. For example, a USB modem can easily be disconnected from the main unit during work on the server rack, rendering SMS alerts or phone calls impossible.
To ensure that the correct time is transmitted when sending SMS messages, it is necessary to set the correct time zone in the monitoring system's system settings. The set time zone must match the time zone of your browser/operating system.
No. The Didactum Monitoring System 500 II offers a so-called modem slot. You can insert the hot-swappable LTE modem into the Monitoring System 500 II while it is running. It will then be automatically detected by the monitoring unit and listed in the web interface.
The "Test" field in the "SMS" menu of the monitoring system is solely for verifying whether SMS messages are being sent successfully. Here, the values of the macro function are populated with randomly generated values. To test whether the macros in the SMS notification function correctly, you must first create a rule in the "Logical Scheme" menu and then trigger it.