| 摘要 |
PURPOSE:To speedily transport users when a number of users are concentrated to a specific floor in a leisurely time. CONSTITUTION:A switch 4SWD is installed at the front of a hotel. When the switch 4WSD is operated, and users are concentrated to a specific floor, e.g. fourth floor, and a descent call button at this specific floor is operated, a relay 4ABD is energized, and contact points 4ABDa1 and 4ABDa2 are closed, and relays 4DA and 4DB are energized, and the call for the A machine and B machine is registered. |
