The FSBS is a key operated switch which when turned to the Bypass position will disconnect the flowswitch from the fire alarm panel and / or local alarm while simultaneously lighting an amber LED on the switch plate to indicate that the waterflow alarm has been bypassed. This allows the sprinkler system to be filled after service or maintenance without activating the alarm system. It also provides a visual indication of the flowswitch status to indicate if it is in alarm or normal condition. Activation of the FSBS will result in a trouble condition on the fire alarm panel. Restoral of the FSBS to normal will result in the fire alarm panel restoring to normal.