A channel bank is a device at a telephone company central office (public exchange) that converts analog signals from home and business users into digital signals to be carried over higher-speed lines between the central office and other exchanges. The analog signal is converted into a digital signal that transmits at a rate of 64 thousand bits per second ( Kbps ). This 64 Kbps signal is a standard known as a DS0 signal. The signal is multiplexed with other DS0 signals on the same line using time-division multiplexing ( TDM ) . Usually, the digital information is put on each DS0 signal using pulse code modulation ( PCM ).

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This was last updated in September 2005
Posted by: Margaret Rouse

Related Terms

Definitions

  • channel

    - In telecommunications in general, a channel is a separate path through which signals can flow. Depending on the context, this term has various meanings. (SearchDataCenter.com)

  • digital switch

    - A digital switch is a device that handles digital signals generated at or passed through a telephone company central office and forwards them across the company's backbone network. (SearchNetworking.com)

Glossaries

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