CONTENTS

 1     Scope
 2     References
        2.1     Normative
        2.2     Informative
 3     Terms and definitions
 4     Abbreviations, acronyms and conventions
        4.1     Abbreviations and acronyms
        4.2     Conventions
 5     Introduction
        5.1     Media Terminal Adapter (MTA)
 6     CM/MTA monitoring requirements
        6.1     CM/MTA alarms
                  6.1.1     CM failures
                  6.1.2     MTA failures
        6.2     CM/MTA telemetry
                  6.2.1    Telemetry signals (External interface)
                  6.2.2     Telemetry Signal 1 – AC Fail
                  6.2.3     Telemetry Signal 2 – Replace Battery
                  6.2.4     Telemetry Signal 3 - Battery Missing
                  6.2.5     Telemetry Signal 4 - Battery Low
                  6.2.6     OSS event reporting
 7     CM/MTA power requirements
        7.1     Power considerations
        7.2     Typical CM/MTA traffic model
        7.3     Power passing tap limitations
        7.4    Average power calculations
        7.5     Power factor considerations
        7.6     CM/MTA average power requirements
        7.7     Service requirements under AC fail conditions
        7.8     Power source compatibility
        7.9     Network powering
                  7.9.1     Center conductor delivery
                  7.9.2     Composite pair delivery
                  7.9.3     Network power characteristics
       7.10     Local powering with battery backup
                 7.10.1     CM/MTA to UPS interface
 8     MTA analog port requirements
        8.1     Loop Start Signalling
        8.2     General Supervision
        8.3     General Ringing
        8.4     Voice Grade Analog Transmission
Annex A - Primary line events
Appendix I - Bibliography
Appendix II - Typical CM/MTA traffic model
Appendix III - Analog interface values for North America
      III.1     Loop start signalling
                III.1.1     Idle state voltage
                III.1.2     Loop closure detection
                III.1.3     Loop open detection
                III.1.4     Off-hook delay
                III.1.5     On-hook delay
                III.1.6     Ringsplash
                III.1.7     Distinctive ringing
                III.1.8     Transmission path
      III.2     General supervision
                III.2.1     Off-hook loop current
                III.2.2     Immunity to line crosses
                III.2.3     System generated open intervals
                III.2.4     Open switching interval distortion
                III.2.5     Dial pulsing
                III.2.6     DTMF signalling
                III.2.7     Dialtone removal
      III.3     General ringing
                III.3.1     Alerting signals
                III.3.2     Ringing delay
                III.3.3     Ringing source
                III.3.4     Ringing capability
                III.3.5     Ringing capacity
                III.3.6     Ring trip
                III.3.7     Ring trip reporting delay
                III.3.8     Ring trip immunity
      III.4     Voice grade analog transmission
                III.4.1     Input impedance
                III.4.2     Hybrid balance
                III.4.3     Longitudinal balance
                III.4.4     MTA loss
                III.4.5     MTA loss tolerance
                III.4.6     Frequency response
                III.4.7     60 Hz loss
                III.4.8     Amplitude tracking
                III.4.9     Overload compression
               III.4.10     Idle channel noise
               III.4.11     Signal to distortion
               III.4.12     Impulse noise
               III.4.13     Intermodulation distortion
               III.4.14     Single frequency distortion
               III.4.15     Generated tones
               III.4.16     Peak-to-average ratio
               III.4.17     Channel crosstalk