Installation manual 2N IP Vario Installation manual 2N IP Vario Content: 1. Product Overview1.1 Components and Associated Products1.2 Terms and Symbols2. Description and Installation2.1 Before You Start2.2 Mechanical Installation2.3 Electric Installation2.3.1 Overvoltage Protection2.4 Completion2.5 Extending Module Connection3. Function and Use3.1 Configuration3.2 Intercom Control as Viewed by External User3.3 Display-Equipped Intercom as Viewed by External User3.4 Intercom Control as Viewed by Internal User3.5 Maintenance3.6 Downloads4. Technical Parameters4.1 General drawings5. Supplementary Information5.1 Troubleshooting5.2 Directives, Laws and Regulations5.3 Other Countries Legislation5.4 General Instructions and Cautions