Working voltage: AC220V, 50Hz; Power consumption: 15W; Communication interface: USB interface; Indicator light: power indicator; Lightning protection level: three level lightning protection; Number of defense areas of the acquisition device: ≥4; Defense area length: 0 ~ 1000m; System detection length ≤8km; Optical fiber port: 1 FC/PC port; Maximum delay of alarm response: ≤1S; Disconnection alarm corresponding time: ≤1S Installation method: on the rack or flat on the table; Installation environment: indoor; Working temperature: -20℃--70℃; 15. Outdoor trunk box and terminal box operating temperature: -40℃--70℃
