Intelligent Peripheral Equipment - Nortel 1000M Overview

Communication server and meridian 1 large system

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Figure 16

Eight segments per superloop

Intelligent Peripheral Equipment

Using pulse code modulation (PCM), Intelligent Peripheral Equipment

(IPE) converts analog signals to digital signals before switching is

performed by the network. This conversion method samples the

amplitude of the analog signal at a rate of twice the highest signal

frequency, then converts the amplitude into a series of coded pulses. For

telecommunications, the PCM-sampling frequency standard is 8 kHz.

Compressing-expanding (companding) PCM is a standard technique

for using 8-bit words to efficiently represent the range of voice and data

signals. Two standards for companding, A-Law and µ-Law, are recognized

worldwide. IPE conforms to both standards; the standard required is

selected through software.

Communication Server 1000M and Meridian 1 Large System Overview

Nortel Communication Server 1000

NN43021-110 02.05 Standard

30 September 2008

Hardware architecture 43

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Meridian 1 large