Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Reference configuration at the user-network
   interface
   4.1 Functional groups and reference points
   4.2 Examples of physical realizations
   4.3 Basic characteristics of the interfaces
       at TB and SB reference points
   4.4 Relationship between ISDN interfaces
   4.5 Functional groups characteristics
5 User network interface specifications
   5.1 Interface location with respect to reference
       configuration
   5.2 Interface location with respect to the wiring
       configuration
6 Service and layering aspects of the physical layer
   6.1 Services provided to the ATM-layer
   6.2 Service primitives exchanged with the ATM layer
   6.3 Sub layering of the physical layer
7 Physical medium characteristics of the UNI at
   155 520 kbit/s
   7.1 Characteristics of the interface at the TB and
       SB reference points
8 Physical medium characteristics of the UNI at
   622 080 kbit/s
   8.1 Characteristics of the interface at the TB and
       SB reference points
9 Power feeding
   9.1 Provision of power
   9.2 Power available at B-NT1
   9.3 Feeding voltage
   9.4 Safety requirements
10 Functions provided by the transmission convergence
   sub layer
   10.1 Transfer capability
   10.2 Physical layer aspects
   10.3 Header Error Control (HEC)
   10.4 Idle cells
   10.5 Cell delineation and scrambling
11 UNI related OAM functions
   11.1 Transmission overhead allocation
   11.2 OAM cell identification
   11.3 Allocation of OAM functions in information
        field
   11.4 Maintenance signals
   11.5 Transmission performance monitoring
   11.6 Control communication
12 Operational functions
   12.1 Description of signals at the interface
   12.2 Definitions of state tables at network and
        user sides
Annex A (informative): Impact of random bit errors on
        cell delineation performance
Annex B (informative): Distributed sample scrambler
        descrambler
History

Abstract

Defines the physical layer interface to be applied to the SB and TB reference points of the reference configurations of the Broadband Integrated Services Digital Network (B-ISDN) cell based User-Network Interface (UNI) at 155 520 kbit/s and 622 080 kbit/s.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	TM 3
Supersedes	PRETS 300 299 : JUN 96