Hello Once Again .. Everyone,

        I have a modem product that failed the hipot requirement defined in
cls 6 of 950.  My understanding is that an isolation xfmr between Telco &
SELV is needed and clearance from Telco & gnd is to be 3mm minimum. Does
anyone have any other general design guidelines that they can share on this
topic ?

        Also, Can anyone point me to any manufacturers app notes for
components used for telco isolation ?  

        And if anyone can recommend any reading material,  I'd like to read
up on these and other issues relating to compliance design aspects of Telco
circuits.


        Thanks,
        George


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