If appropriate, it's possible to keep things simple by using volt-free contacts. These can signal events like 'mains power failure', 'battery low/ok' and 'load on inverter/mains'. Their advantages are their reliability and simplicity of setup, but they are limited to providing simple True/Not. However network strategies, using Ethernet topology within sites and the Internet over wider areas, are becoming increasingly. While network type UPS monitoring and control can be managed by the user within their enterprise network, it is also possible to give network access to the UPS supplier, allowing them to exercise UPS management from their control centre. KUP's remote UPS.