Specification PTC 200 Requirements for Connection of Customer Equipment to Analogue Lines Access Standards Telecom New Zealand Limited Wellington New Zealand May 2006 2 PTC 200 May 2006 Table of Contents Table of Contents .......................................................................................................... 2 RELATED TELECOM DOCUMENTS............................................................................ 6 REFERENCE DOCUMENTS (including later amendments)...................................... 6 FOREWORD ................................................................................................................. 7 TELECOM DISCLAIMER .............................................................................................. 9 1. SCOPE................................................................................................................. 10 1.1 Equipment types and associated Specifications ........................................... 10 1.2 Electromagnetic interference (EMI)............................................................... 11 1.2.1 Radiated energy requirements............................................................... 11 1.2.2 Immunity from radiated energy............................................................... 11 1.3 Legal requirements........................................................................................ 11 1.4 Exclusions .....................................................................................................12 1.5 Compliance with International standards....................................................... 12 1.6 Temporary relaxations................................................................................... 12 1.7 Mandatory requirements ............................................................................... 12 1.8 Exemptions from full compliance................................................................... 12 1.9 Warning to Suppliers..................................................................................... 13 1.10 Non-compliance aspects ............................................................................... 13 1.11 Warning notices............................................................................................. 14 1.12 Product and service compatibility.................................................................. 14 1.13 Ongoing compliance...................................................................................... 14 2 GENERAL ............................................................................................................ 16 2.1 Mode of presentation..................................................................................... 16 2.2 Related Specifications................................................................................... 16 2.3 Marketing features......................................................................................... 16 2.4 Specialised services & features .................................................................... 16 2.5 Variants of the same basic design................................................................. 17 2.6 Disabling of prohibited features..................................................................... 17 2.7 Naive users ................................................................................................... 18 2.8 Electrical safety ............................................................................................. 19 2.8.1 General .................................................................................................. 19 2.8.2 External power supplies ......................................................................... 19 2.8.3 Plug-in cards or modules ....................................................................... 19 2.8.4 Earth connections .................................................................................. 19 2.9 Protection from line interference ................................................................... 19 2.10 Temperature.................................................................................................. 20 2.11 Compliance testing........................................................................................ 20 2.11.1 Test procedures ..................................................................................... 20 2.11.2 Test results............................................................................................. 21 2.12 Multi-function and series connected equipment ............................................ 22 2.12.1 Types of signal....................................................................................... 22 2.12.2 Terminating function............................................................................... 22 2.12.3 Bridging function .................................................................................... 22 2.12.4 Series connected devices ...................................................................... 23 3 DEFINITIONS....................................................................................................... 25 3.1 General ......................................................................................................... 25 4 TRANSMISSION REQUIREMENTS .................................................................... 36 4.1 General ......................................................................................................... 36 4.2 Transmitted power limitations........................................................................ 37 4.3 Noise and Crosstalk ...................................................................................... 38 4.3.1 Equipment on-hook ................................................................................ 38 3 PTC 200 May 2006 4.3.2 Equipment off-hook ................................................................................ 39 4.3.3 Multi-line devices.................................................................................... 40 4.4 Distortion ....................................................................................................... 40 4.5 Line impedance of the device........................................................................ 40 4.5.1 Off-hook line impedance ........................................................................ 40 4.5.2 On-hook line impedance ........................................................................ 42 4.6 Port impedances of series connected devices .............................................. 42 4.6.1 Terminating devices ............................................................................... 42 4.6.2 Non-terminating devices ........................................................................ 42 4.7 Impedance of bridging equipment ................................................................. 43 4.8 Impedance balance ratio to earth.................................................................. 43 4.9 Frequency response...................................................................................... 44 4.9.1 Send frequency response of telephony devices..................................... 44 4.9.2 Receive frequency response of telephony devices ................................ 45 4.9.3 Non-voice equipment ............................................................................. 46 4.9.4 Series connected devices ...................................................................... 46 4.9.5 Bridging devices..................................................................................... 47 4.10 Send and Receive Loudness Ratings (SLR & RLR) ..................................... 47 4.11 Sidetone for telephony devices ..................................................................... 48 4.11.1 Significance of sidetone ......................................................................... 48 4.11.2 Optimum sidetone performance............................................................. 48 4.11.3 Sidetone Masking Rating (STMR).......................................................... 49 4.12 Instability .......................................................................................................49 4.13 Acoustic shock protection.............................................................................. 49 4.14 Adjustable volume controls on telephony devices......................................... 49 4.15 Telephony security in on-hook condition ....................................................... 50 4.16 Recorded message quality............................................................................ 50 5 SIGNALLING REQUIREMENTS .......................................................................... 52 5.1 Signalling types ............................................................................................. 52 5.2 Transmission of DTMF signalling .................................................................. 52 5.2.1 DTMF frequencies.................................................................................. 52 5.2.2 DTMF signalling requirements ............................................................... 53 5.2.3 Signal timing........................................................................................... 53 5.2.4 Series connected equipment.................................................................. 53 5.2.5 Speech circuit suppression 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