Installation and Programming Guide  41 
 
If it does not: 
1.  Check cable connections. 
2.  Check router settings allow Internet access to LAN devices. 
3.  On the NXX-1820- touchscreen keypad press Menu – [PIN] – [ENTER] – Installer – 
Communicator – IP Configuration – IP Options. “Enable UltraSync” should be ticked. 
Connect to Aritech Reliance XR via 4G Cellular and WiFi Router Module 
An optional 4G Cellular and WiFi Router Module provides dual path reporting over 
WiFi/Ethernet and 4G. If the primary path (WiFi/Ethernet) is not working, the module will 
switch to 4G back-up reporting path to the central monitoring station. Multiple cellular 
networks are supported using dual-SIM cards for further redundancy. 
Alternatively, the module can be set by the central monitoring station to use 4G single path 
reporting. This is useful for sites with no broadband internet. 
The module is pre-configured. Once installed on the Aritech Reliance XR panel, it will 
automatically register on available mobile network(s). Refer to the 4G Cellular and WiFi 
Router Module manual for further details. 
Check 4G connection to UltraSync 
1.  Log in to the Web Server as shown above. 
2.  Click Settings. 
3.  Select Connection Status in the drop-down menu. 
4.  Check: 
•  UltraSync Status should display “Connected”. 
•  Cell Service should display “Valid service”.