| 摘要 |
PURPOSE:To increase the operability, without common use of a comparison table and a name plate classfied on usage, by making the display of each application of a display device the same color as name entering color, in a switchboard inquiry having a plurality of keys and display devices. CONSTITUTION:Various keys for an attendant board ATT are entered names used for the ATT as well as names PS1-PS14 used as a maintenance terminal device. Red letters used for the names for th ATT and green letters are used for the names for the maintenance operation terminal, and red lamp display is used for the ATT and the green lamp display is for the maintenance operation terminal device, allowing to avoid misuse of the operator and the maintenance man. |
