Table of Contents

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Symbols
   3.3 Abbreviations
4 Primitives associated with layer 1
5 Wiring configurations and location of interface
   points
   5.1 General
   5.2 Support of wiring configurations
6 Functional characteristics
   6.1 Interface functions
   6.2 Interchange circuits
   6.3 Connected/disconnected indication
   6.4 Frame structure
   6.5 Line code
   6.6 Timing considerations
7 Interface procedures
   7.1 D-channel access procedure
   7.2 Activation/deactivation
   7.3 Signals
   7.4 Activation/deactivation procedure for TEs
   7.5 Activation/deactivation for NTs
   7.6 Timer values
   7.7 Activation times
   7.8 Deactivation times
8 Frame alignment procedures
   8.1 Frame alignment procedure in the direction
       NT to TE
   8.2 Frame alignment in the direction TE to NT
   8.3 Multi-framing
   8.4 Idle channel code on the B channels
9 Electrical characteristics
   9.1 Bit rate
   9.2 Jitter and bit-phase relationship between TE
       input and output
   9.3 NT jitter characteristics
   9.4 Termination of the line
   9.5 Transmitter output characteristics
   9.6 Receiver input characteristics
   9.7 Isolation from external voltages
   9.8 Interconnecting media characteristics
   9.9 Standard ISDN basic access TE cord
10 Power Feeding
   10.1 Reference configuration
   10.2 Power available from NT
   10.3 Power available at a TE
   10.4 Power source 1 consumption
   10.5 Galvanic isolation
   10.6 Current transient
   10.7 Current unbalance
   10.8 Additional requirements for an APS
   10.9 Additional requirements for NT1 restricted
        mode source for compatibility with an APS
11 Interface connector contact
Annex A (informative): Wiring configurations and round
        trip delay considerations used as a basis for
        electrical characteristics
      A.1 Introduction
      A.2 Wiring configurations
Annex B (normative): Test configurations
Annex C (normative): Test loopbacks defined for the
        basic UNI
      C.1 Introduction
      C.2 Loopback mechanism definitions
      C.3 Test loopback reference configuration
      C.4 Test loopback characteristics
Annex D (normative): Additional requirements applicable
        to the (explicit) S reference point
      D.1 Introduction
      D.2 References
      D.3 Definitions
      D.4 Conformance
      D.5 Requirements
      D.6 Provision of power
Annex E (informative): SDL representation of a possible
        implementation of the D-channel Access
Annex F (informative): SDL representation of
        activation/deactivation procedures for
        TEs and NTs
      F.1 SDL representation of activation/deactivation
          procedures for TEs
      F.2 SDL representation of activation/deactivation
          procedures for NTs
Annex G (informative): Multi-framing mechanism
      G.1 Multi-framing
      G.2 S-channel structuring algorithm
History

Abstract

Describes requirements for the ISDN basic rate UNI including the physical, electrical and functional characteristics and the information exchange with higher layers.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	TM 6