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    PC7071

    Abstract: uPC7071 uPD9901
    Contextual Info: SEC NEC Electronics Inc. Description The^PC7071L and^PC7072L are subscriber line inter­ face circuits SLICs LSIs for both PABX and central office. They provide battery feed to the subscriber line (B) and supervision (S) of the subscriber line (BSSLIC).


    OCR Scan     		upc7071l/72lpc7071lpc7072l//pd9901+7/ipd9901/jpc7071lppc7072l/pc7072lpc7071upc7071upd9901 PDF

    uPD9901

    Abstract: 9901l
    Contextual Info: SEC NEC Electronics Inc. Description The //PD9901L is a digital CODEC subscriber line inter­ face c ircu it SLIC LSI fo r both PABX and central office. It is used to provide three functions: 2-wire/4-wlre hybrid interfacing, coder-decoder, and supervision.


    OCR Scan     		upd9901l/pc7071l/7072ljupd9901l7071u7072l+57071l/7072l9901l28-pinpd9901lupd9901 PDF

    upc7072

    Abstract: uPC7071L
    Contextual Info: SEC NEC Electronics Inc. Description PC7071L/72L Bipolar, Analog Subscriber Line Interface Circuit n Ground-key detection and ground-fault protection with /iPD9901L The /PC7071L and pPC7072L are subscriber line inter­ face circuits (SLICs) LSIs for both PABX and central


    OCR Scan     		upc7071lupc7072l/ipc7071lppc7072l+7/pd9901/ipd9901l/upc7071/jpc7072lfjpc7071l/pc7071lupc7072 PDF