Two-phase filtering for a firewall is disclosed. For instance, when a controller is receiving normal power, the controller may act as a power over Ethernet source that supplies power to its connected Ethernet devices as required. The front and rear fixation devices have pivot points located in an area of a toe of the snowboard boot and in an area of a heel of the snowboard boot, respectively. In order to simplify the anchoring configuration, the first strip section of the fastening strip is configured as the water collecting profile. The lockout slide has a ridge portion and a recess portion. The jaws form a throat therebetween having a closed end and an open end.