Table of Contents
1Scope
2References
3Definitions
4Descriptionofmodel
4.1Overview
4.2Echocontrolrequirements
4.3Round-tripdelaycriteria
4.4Modemimpedancerequirements
4.5Modellimitations
4.6Digitalimpairmentrequirements
4.7NetworkModelCoverage(NMC)
5Impairmentlevelset-up
AnnexA-Attenuationandenvelopedelaydistortion
characteristics
AnnexB-Minimizingtesttime
AppendixI-Rareintracontinentalnetworkmodel
I.1Modeldescription
AppendixII-Basisfornetworkmodels
AppendixIII-Errorratevs.networkmodelcoverage
III.1Bit-andblock-errorratevs.networkmodel
coverage
AppendixIV-Supplementalroundtripdelaymodel Abstract
Contains the network model, test equipment configuration and calibration, and parameter values to be used in the evaluation and comparison of 2-wire modems.