I have a technical question regarding Orion-TR Smart 12/12-30 (360W) isolated DC charger. The technical documentation on the website shows the connection diagram. 
                
 
                 
                 https://www.victronenergy.com/upload/documents/1.6KVA-12V-MultiPlus-230-Volt-system-example-4-PIN-VE-Bus-BMS-Lithium-Orion-Tr.pdf 
                 
 
                  
 
                 
 
                  
                  
 
                 In this scheme, all the negative poles of the devices are connected to each other. Is it possible to connect an isolated device like this? Is it possible to connect the negative poles on the input and output, despite the fact that the device is isolated? 
                 
 
                  
 
                 
 
                 
 
                  
                  
 
                  
                  
                  
 
                  
                
 
                
                   thank you in advance 
                 
 
                 