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12/16Khz and reverse polarity

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #41069 Reply
    peterholl
    Guest

    Hi all!
    I am a new member.
    I would like to know about the different between 12Khz/16Khz pulse and Reverse Polarity signal
    Thanks!

    #41070 Reply
    dmck
    Guest

    in what context?

    #41071 Reply
    Hitesh
    Guest

    12/16 Khz signal is sent from Exchange to subscriber premises for around 100ms duration.
    In reverse polarity signal potential(-48V) on a & b limbs are reversed momentarily(donot know exact dutration).
    Both these signals are generally used to send metering pulses for different machines (One sensing pulses other sensing reversals)

    #41072 Reply
    peterholl
    Guest

    thanks a lot

    #41073 Reply
    sathya
    Guest

    12khz/16khz is sent from the exchange to calling party for billing purpose. Line reversal is polarity reversal on line a and b limbs once the calling party and called party are connected each other (once called party lifts handset)

Viewing 5 posts - 1 through 5 (of 5 total)
Reply To: 12/16Khz and reverse polarity
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