First of all, please explain the concept of power back-up for each component. That is, please clarify how the power for each component in this fire and alarm system is going to be backed up and which component should be backed up in accordance with Thai regulation.For example, FC726-ZA and FT724 seems not be backed up by the dedicated battery but these component has the built-in battery?In addition, AVT considers that the network hardware such as media converter and ethernet swtich between controller and remote panel should also be backed up by the dedicated battery but AVT can't identify it by this drawing. Could you please provide the overall power distribution diagram for this fire and alarm system so that AVT can check whether each component is backed up appropriately.