| 摘要 |
PURPOSE:To easily recognize the physical location of a trunk circuit or a selected subscriber circuit in an exchange for the purpose of setting a station data by lighting display lamp of the subscriber circuit or the trunk circuit depending on the circuit designation. CONSTITUTION:In selecting the subscriber circuit 13 in the electronic exchange 10 by a keyboard 19, the display lamp 12 of the circuit 13 selected via an interface circuit 20 and a controller 16 is lighted. Thus, while the display circuit 18 is being observed via the keyboard 19, the physical location of the circuit 13 at the revision of the memory 17 of the equipment 16 in the exchange 10 is recognized easily in response to the station set data of the selected circuit 13 to improve the workability.
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