Table of Contents

 1     Scope          
 2     References
 3     Definitions
 4     Abbreviations and acronyms             
 5     Reference models 
        5.1     System reference model         
        5.2     Application reference models
        5.3     МTU protocol reference model            
        5.4     MTU functional model             
        5.5     L2+ queues and QoS channels reference model            
        5.6     INP system requirements       
 6     Profiles       
        6.1     Definition      
        6.2     Profile compliance     
 7     Transmission medium interface characteristics         
        7.1     Duplexing method     
        7.2     Frequency band          
        7.3     Power spectral density             
 8     Transport protocol specific transmission convergence (TPS‑TC) function       
        8.1     Functional reference model  
        8.2     Generic DTU format  
        8.3     Packet-based TPS-TC (PTM-TC)            
        8.4     Network timing reference (NTR)          
        8.5     Time‑of‑day (ToD)     
 9     Physical media specific transmission convergence (PMS‑TC) sub-layer            
        9.1     Functional reference model  
        9.2     DTU scrambler             
        9.3     DTU encoder
        9.4     Interleaver    
        9.5     Data frame multiplexer            
        9.6     RMC and RRC
        9.7     Acknowledgement    
        9.8     Retransmission function          
10     Physical media dependent (PMD) function
       10.1     PMD functional reference model       
       10.2     Symbol encoder        
       10.3     Precoder (downstream vectoring)     
       10.4     Modulation 
       10.5     PDX frame structure
       10.6     Superframe structure             
       10.7     Dynamic time frequency operation (DTFO)    
       10.8     Alignment of transmissions in vectored group              
11     Operation and maintenance (OAM)             
       11.1     OAM functional model           
       11.2     Management functions and procedures over eoc       
       11.3     OAM primitives          
       11.4     P2P OAM parameters             
       11.5     P2MP OAM parameters         
12     Link activation methods and procedures    
       12.1     Overview     
       12.2     Special operations channel (SOC)       
       12.3     Initialization procedure          
       12.4     NT identification and authentication in P2MP operation          
13     On‑line reconfiguration (OLR)         
       13.1     Overview     
       13.2     Eoc-based procedures            
       13.3     RMC-based procedures         
       13.4     Low power operation              
       13.5     DBR procedure          
       13.6     DCMU procedure      
14     Electrical requirements     
       14.1     Balance         
       14.2     Differential port impedance 
Annex A – Secure NT Identification and Authentication based on IEEE 802.1X    
        A.1     Scope              
        A.2     Abbreviations and acronyms 
        A.3     Introduction 
        A.4     References   
        A.5     Reference model       
        A.6     NT identification         
        A.7     NT Authentication     
Annexes B and C    
Annex D – Operation with dynamic time assignment    
        D.1     Scope             
        D.2     Definitions    
        D.3     Abbreviations and acronyms 
      Page
        D.4     Reference model(s)  
        D.5     Dynamic time assignment (DTA)          
        D.6     Initialization messages            
Annexes E to O    
Annex P – Adaptation to the twisted pair medium    
        P.1     Scope              
        P.2     Definitions    
        P.3     Abbreviations and acronyms 
        P.4     Reference models     
        P.5     Profiles           
Annex Q – Adaptation to the coaxial medium    
        Q.1     Scope             
        Q.2     Definitions    
        Q.3     Abbreviations and acronyms 
        Q.4     Reference models     
        Q.5     Profiles          
        Q.6     Discontinuous operation        
        Q.7     Requirements specific to FDX mode  
        Q.8     Adaptation to the coaxial cable medium          
Annex R              
Annex S – NT software upgrade    
        S.1     Scope              
        S.2     References   
        S.3     Reference model        
        S.4     Software image management process
        S.5     Message set 
        S.6     Software upgrade (informative)           
Annex T – Dynamic time assignment (DTA) – higher-layer control aspects    
        T.1     Scope              
        T.2     DTA control parameters          
        T.3     Coordination between the link state request and the DTA request       
        T.4     Diagnostics and monitoring of DTA     
Annexes U to W    
Annex X – Operation without multi-line coordination intended for a  crosstalk-free environment    
        X.1     Scope              
        X.2     Definitions    
        X.3     Abbreviations and acronyms 
        X.4     Reference model(s)  
        X.5     Profiles           
        X.6     On-line reconfiguration           
        X.7     Initialization  
        X.8     Discontinuous operation         
        X.9     Requirements specific to FDX mode   
       X.10     Initialization messages           
Annex Y – Upstream dynamic resource reports    
Appendix I – Copper pair wiring topologies and reference loops    
        I.1                  Wiring topologies           
        I.2                  Reference loops              
Appendix II – Coaxial cable wiring topologies and reference loops    
       II.1     Reference loops          
       II.2     Wire types     
Appendix III – Example OLR use cases    
      III.1     Transmitter initiated gain adjustment (TIGA)  
Bibliography