Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions
4 Symbols and abbreviations
5 Network reference configuration
6 Reference mode
7 General characteristics
  7.1 Size
  7.2 Timing signal
8 Functions
  8.1 Cross connection
  8.2 Management
9 Interfaces
  9.1 2048 kbit/s interface
  9.2 Synchronization interface at 2048 kHz
  9.3 Interface with the TMN
  9.4 User interface
  9.5 Power supply interface
10 Frame alignment and CRC procedure
  10.1 Loss of frame alignment
  10.2 Recovery of frame alignment
  10.3 CRC multiframe alignment in TS 0
  10.4 CRC bit monitoring 16
11 Defect or failure conditions and performance
   monitoring
  11.1 Defect or failure conditions at the G2
       (or A2) reference point and consequent actions
       at the J2 (or G2) and G1 (or A1) reference
       points
  11.2 Defect or failure conditions and consequent
       actions for the core of the equipment
  11.3 Performance monitoring
12 Performance
  12.1 Blocking factor
  12.2 Jitter
  12.3 Transfer delay
  12.4 Slips
  12.5 Error characteristics of the equipment
Annex A (normative): Additional requirements for cross
                     connection of channel associated
                     signalling bits in TS
  A.1 Network reference configuration (clause 5)
  A.2 Cross connection (subclause 8.1)
  A.3 Frame structure (subclause 9.1.2)
  A.4 Defect or failure conditions and performance
      monitoring (clause 11)
      A.4.1 Defect or failure conditions
            (subclause 11.1.1)
      A.4.2 Consequent actions (subclause 11.1.2)
      A.4.3 Defect or failure conditions and consequent
            actions for the core of the equipment
            (subclause 11.2)
A.5 Transfer delay (subclause 12.3)
    A.5.1 64 and n x 64 kbit/s signals
    A.5.2 Channel associated signalling in TS 16
Annex B (normative): Additional TS allocation
  B.1 Cross connection (subclause 8.1)
  B.2 Frame structure (subclause 9.1.2)
Annex C (normative): Other timing and slip performance
                     requirements
  C.1 More stringent performance
  C.2 Less stringent performance
Annex D (normative): Additional requirements for cross
                     connection
  D.1 Additional requirements for cross connection of
      unstructured signal 2 048 kbit/s signal
  D.2 Additional requirements for cross connection of
      CCITT Recommendation G.704 framed 2 048 kbit/s sign
D.3 Additional requirements for TS 0 cross connection
Annex E (informative): Bibliography
History

Abstract

Describes requirements of cross connect equipment to be used in synchronous digital leased line networks. Covers equipment having 2048 kbit/s access ports and is limited to the basic performance, functions and external characteristics of the equipment.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	TM 1