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    • 8. 发明专利
    • SYSTEM FOR TESTING OUTGOING SIDE OF AUTOMATIC EXCHANGE
    • JPS6359049A
    • 1988-03-14
    • JP19999386
    • 1986-08-28
    • OKI ELECTRIC IND CO LTDNIPPON TELEGRAPH & TELEPHONE
    • AIBA NOBUOUCHIDA TATSUOOGAWA KAZUHIKO
    • H04M3/26
    • PURPOSE:To execute the normality test satisfactorily by providing an incoming trunk means connected to an outgoing side of an automatic exchange so as to receive a signal from the automatic exchange, decoding a signal received according to any of plural signal forms and outputting a signal in response to the content. CONSTITUTION:When the test connection is progressed and the state reaches the stage receiving a selection signal from a relay line 10, a control section CONT connects a pseudo incoming trunk DICT to a multi-frequency (MF) signal reception section MFREC via an automatic reception switching section ARCE. Thus, a high order selection code 'ABC' is received from the line 10. The data in response to the code is transferred to the control section CONT by a signal line 12 and the control section CONT decodes it. Then the control section CONT controls again the automatic switching section ARCE to connect the pseudo incoming trumk DICT to a PB signal reception section PBREC. Then the low-order selection code 'DEFG' is received in succession to the high-order selection code from the line 10. The data in response to the code is transferred to the control section CONT through a signal line 14 and the control section CONT analyzes the data.