Hikvision NVR Alarm out Wiring, connect Siren or hoot make noise when motion detect / event happaned

How to Configure Alarm out Notification, Hikvision NVR Siren connect to alarm port, the siren will make noise when detect the VCA event like Line Crossing, Motion detection and Video loss etc.. How to configure alarm function of NVR, How to connect siren / hooter to nvr alarm port