| 摘要 |
PURPOSE:To ensure the prevention of mis-transmission of message at front job a hotel, by enabling the presence of the guest with the control of the message display lamp through the switches corresponding to the guest room number. CONSTITUTION:With a given period, the storage information taking the room number, message and presence as one set for the memory unit MEM is sequentially read out. When no message, the message display light INL is distinguished for the display element L, the display light is illuminated when absence with message, and when presence with message, the storage information of lamp control is read out from the storage unit MEM and re-write is made by inverting it. If the information read out is ''illumination'', the control information of ''distinguishement'' is made and vice versa, and then it is fed to the message display unit IND as the indication control signal 3 via the transmission unit IIF from the input and output control room IOC with the room number. |
