Rec. ITU-T G.797 (03/1993) … CHARACTERISTICS OF A FLEXIBLE MULTIPLEXER IN A PLESIOCHRONOUS DIGITAL HIERARCHY ...
FOREWORD
CONTENTS
ABSTRACT
1 General characteristics
    1.1Definitions
    1.2 Abbreviations
    1.3 Application of the equipment
        1.3.1 Network configurations
        1.3.2 Services
    1.4 Size
    1.5 Modularity
    1.6 Timing signal
2 Functions
    2.1 Mapping
    2.2 Signal processing
    2.3 Concentration
    2.4 Management
3 Functional representation of the equipment and definition of reference points
    3.1 Functional representation
    3.2 Definition of functional blocks
    3.3 Definition of reference points
4 Tributary interfaces
    4.1 Analog interfaces
        4.1.1 Voice band interfaces
        4.1.2 Wide band interface
    4.2 Digital interfaces
        4.2.1 DTE/DCE interfaces
        4.2.2 G.703 64 kbit/s codirectional
        4.2.3 Integrated base band line termination
        4.2.4 Tributaries supported in a G.704 frame
        4.2.5 Basic ISDN user-network interface
5 Aggregate interfaces
    5.1 2048 kbit/s interface
        5.1.1 Electrical characteristics at A reference point
        5.1.2 Configurable parameters
        5.1.3 Framing at E/E reference point
        5.1.4 Test functions
    5.2 8448 kbit/s interface
        5.2.1 Electrical characteristics at A reference point
        5.2.2 Framing at B reference point
        5.2.3 Test functions
    5.3 34 368 kbit/s interface
        5.3.1 Electrical characteristics at A reference point
        5.3.2 Framing at B reference point
        5.3.3 Test functions
    5.4 139 264 kbit/s interface
        5.4.1 Electrical characteristics at A reference point
        5.4.2 Framing at B reference point
        5.4.3 Test functions
6 Synchronisation interface at 2048 kHz
7 Local operator interfaces
8 Power interfaces
9 Defect or failure conditions and consequent actions for the tributary interfaces
    9.1 Defect or failure conditions
        9.1.1 O reference point
        9.1.2 N1 (or M1) reference point
    9.2 Consequent actions
        9.2.1 Analogue tributary interface
        9.2.2 Data interfaces
        9.2.3 G.703 64 kbit/s codirectional
        9.2.4 G.704 2048 kbit/s
10 Defect or failure conditions and consequent actions for the aggregate
    10.1 Defect or failure conditions
        10.1.1 A reference point
        10.1.2 B2 reference point
        10.1.3 E2/E2 reference point (G.704 2048 kbit/s)
    10.2 Consequent actions for defect or failure conditions related to the A reference point
    10.3 Consequent actions for defect or failure conditions related to the B2 reference point
    10.4 Consequent actions for defect or failure conditions related to the E2/E2 reference point
11 Defect or failure conditions and consequent actions for the core of the equipment
    11.1 Defect or failure conditions
        11.1.1 Failure of power supply
        11.1.2 Failure of a connection
        11.1.3 Loss of synchronisation signal(s)
    11.2 Consequent actions at the O2 or A1 or E1/E1 or L2 or N2 reference points
        11.2.1 2048 kbit/s, 8448 kbit/s, 34 368 kbit/s or 139 264 kbit/s interfaces
        11.2.2 Other tributary interfaces
12 Performance monitoring
13 Performance of the equipment
    13.1 Jitter
        13.1.1 139 264 kbit/s aggregate
        13.1.2 34 368 kbit/s aggregate
        13.1.3 8448 kbit/s aggregate
        13.1.4 2048 kbit/s aggregate and tributary
        13.1.5 G.703 64 kbit/s tributary
    13.2 Transfer delay
        13.2.1 64 and n 64 kbit/s signals
        13.2.2 CAS in TS16
        13.2.3 Control signals
    13.3 Slips
    13.4 Service availability
    13.5 Error performance
    13.6 Bit sequence independance
14 Management