Designed for interior use, CS75A12V3 Indoor CyberShield™ FTTx System supplies continuous 12 VDC to local power network interface devices (NID), cable telephone modems, wireless base stations, fiber to the home (FTTH), optical network terminals (ONT), and integrated access devices. Features of the CS75A12V3 include high-function design, cold start functionality, audible alarm signals with silence options, microprocessor intelligent control, a telemetry interface, optional extendable runtime, user-replaceable batteries, and LED indicators. It also comes with a three-year warranty.