Special waterproof design and moisture treatment Voice guidance operation, voice prompts fault function Large capacity systems for high-rise buildings Transmit timing signal fault detection and fault isolation protection National unlock original 24V voltage protection Password lock function independently of each household LCD Chinese LCD, you can set the greeting, advertising Enter the name of the residential real estate to support themselves without having to order Lens aperture decoration, ornate light flashing Can be added IC / ID access control and remote keyless entry function There RJ45 network interface seat and seat row of pins Supports pure two kinds of cable and wiring sheathed cable