Table of Contents

Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Symbols
   3.3 Abbreviations
4 General
5 Physical connections
   5.1 Mechanical Aspects
   5.2 Support of more than one terminal
6 DC feed conditions
   6.1 Polarity
   6.2 Quiescent state
   6.3 Loop current
7 Seize signal
   7.1 Must not seize condition
   7.2 Must seize condition
8 Clear signal
   8.1 Clear signal generated by TE
   8.2 Clear indication from the network
   8.3 Seizing the line for a new call
9 Impedance
   9.1 NTP impedance
   9.2 Balance about earth
10 Transmission
   10.1 Relative level
   10.2 Frequency response
   10.3 Coding law
   10.4 Noise
   10.5 Input levels
   10.6 Stability
   10.7 Crosstalk
11 Dialling
12 Ringing
   12.1 Ringing drive capability
   12.2 Ring cadence
   12.3 Ring trip
13 Supervisory signals
   13.1 Supervisory tones
   13.2 Tone levels
   13.3 Cadences and frequencies
14 Optional functions
   14.1 Loop Disconnect dialling
   14.2 Register recall
   14.3 Metering
   14.4 ALASS services
   14.5 Polarity reversal
   14.6 End of call signal ("K-break")
   14.7 Payphones
History

Abstract

The objective of this guide is to lay down harmonized specifications for a Network Termination Point of supporting voice and non-voice terminals, particularly suitable for use by new network operators operating in several European countries. These specifications take due account of the harmonized terminal equipment specifications. v1.2.1: Incorporates commens received during the Membership Approval Process.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	ATA C