Evaluation of some CENELEC standards for potential applicability to the Radio Equipment Directive

Transcription

1 Evaluation of some CENELEC standards for potential applicability to the Radio Equipment Directive Introduction The following standards have been evaluated for the Confederation of Aerial Industries by Mandercom Ltd for their potential suitability and applicability to the Radio Equipment Directive in relation to domestic and MATV/IRS TV signal reception and distribution products: 1. BS EN :2012+A1:2015 Cable networks for television signals, sound signals and interactive services, Part 2: Electromagnetic compatibility for equipment; 2. BS EN :2013 Cable networks for television signals, sound signals and interactive services, Part 8: Electromagnetic compatibility for networks; 3. BS EN :2014 Cable networks for television signals, sound signals and interactive services, Part 1: System performance of forward paths; 4. BS EN :2014 Cable networks for television signals, sound signals and interactive services, Part 1-2: Performance requirements for signals delivered at the system outlet in operation; 5. BS EN :2011 Cable networks for television signals, sound signals and interactive services, Part 3: Active wideband equipment for cable networks; 6. BS EN :2012 Cable networks for television signals, sound signals and interactive services, Part 3-1: Methods of measurement of non-linearity for full digital channel load with DVB-C signals; 7. BS EN :2016 Cable networks for television signals, sound signals and interactive services, Part 5: Headend equipment. Radio Equipment Directive The purpose of the Radio Equipment Directive (RED, Directive 2014/53/EU) is to ensure effective and efficient use of the radio spectrum by, for example, preventing the sale and use of products that are unduly interfering or susceptible to interference. Article 1 of the Directive states This Directive establishes a regulatory framework for the making available on the market and putting into service in the Union of radio equipment. Article 2 defines the term radio equipment as... an electrical or electronic product, which intentionally emits and/or receives radio waves for the purpose of radio communication and/or radiodetermination, or an electrical or electronic product which must be completed with an accessory, such as antenna, so as to intentionally emit and/or receive radio waves for the purpose of radio communication and/or radiodetermination. The emphasis is clearly on products. No mention is made of systems built from interconnection of a number of such and other products. Article 3 defines the essential requirements of the Directive. 3.1 states: Mandercom Ltd for CAI Page 1 of 27 Version 1, 21 November 2017

2 Radio equipment shall be constructed so as to ensure: (a) the protection of health and safety of persons and of domestic animals and the protection of property, including the objectives with respect to safety requirements set out in Directive 2014/35/EU [LVD, the Low Voltage Directive], but with no voltage limit applying; (b) an adequate level of electromagnetic compatibility as set out in Directive 2014/30/EU [EMCD, the Electromagnetic Compatibility Directive]. Article 3.2 states: Radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference. Conformance with the Directive is required for CE marking of products. Conformance may be demonstrated by either of the following: Compliance with a suitable harmonised specification; Approval by a notified body. Relevant harmonised standards relating to the Radio Equipment Directive include: ETSI EN Digital Terrestrial TV Broadcast Receivers; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU; ETSI EN Amplifiers and active antennas for TV broadcast reception in domestic premises; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU; ETSI EN , Satellite Earth Stations and Systems (SES); Satellite broadcast reception equipment; Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU, Part 1: Outdoor unit receiving in the 10,7 GHz to 12,75 GHz frequency band; ETSI EN , Satellite Earth Stations and Systems (SES); Satellite broadcast reception equipment; Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU, Part 2: Indoor unit. Article 3.1 requires compliance with the safety requirements of the Low Voltage Directive (LVD), and with the Electromagnetic Compatibility Directive (EMCD). Potentially relevant harmonised standards under the LVD include: EN :2010 Cable networks for television signals, sound signals and interactive services Part 11: Safety; EN :2015 Coaxial cables - Part 4-2: Sectional specification for CATV cables up to 6 GHz used in cabled distribution networks. Potentially relevant harmonised standards under the EMCD include: EN :2012 Cable networks for television signals, sound signals and interactive services Part 2: Electromagnetic compatibility for equipment. Mandercom Ltd for CAI Page 2 of 27 Version 1, 21 November 2017

3 BS EN :2012+A1:2015 (Harmonised standard under EMCD) Scope EN applies to the radiation characteristics and immunity to electromagnetic disturbance of EM-active equipment (active and passive equipment) for the reception, processing and distribution of television, sound and interactive multimedia signals as dealt with in... : EN Active wideband equipment for cable networks EN Passive wideband equipment for coaxial cable networks EN Headend equipment EN Optical equipment Methods of measurements Performance requirements Comments 4.1 General operating conditions 5.1 General 4.2 Disturbance voltages from equipment Disturbance voltages from equipment in the frequency range 150 khz to 30 MHz Disturbance voltages from equipment at the AC mains frequency and its harmonics Emission performance requirements Immunity performance requirements 5.2 Disturbance voltages from equipment Limits of mains terminal disturbance voltage Describes which limits apply. Describes which limits apply. Specifies conducted emissions from mains input and signal input. Mandercom Ltd for CAI Page 3 of 27 Version 1, 21 November, 2017

4 4.2.3 Measurement of input terminal disturbance voltage 4.3 Radiation from active equipment Limits of input terminal disturbance voltage Limits given for oscillator fundamental and harmonics, and other frequencies. 5.3 Radiation Specifies radiation limits from active devices Introduction Radiation from active equipment General measurement requirements Methods of measurements Local oscillator power at the outdoor unit input 4.4 Immunity of active equipment 5.4 Immunity of active equipment Specifies immunity to conducted and radiated signals Introduction Performance criterion Measurement of the external immunity to ambient fields Internal immunity (immunity to unwanted signals) 4.5 Screening effectiveness of passive equipment External immunity to electromagnetic fields Internal immunity Referenced by EN (incorrectly) references EN for the maximum signal level; EN : Maximum operating level for pure digital channel load, states this is under consideration. A 2016 CD of EN ( is now ) appears to offer a means of measuring the maximum signal level, but for a fully loaded spectrum of DVB-C signals Immunity of outdoor units to image frequency signals 5.5 Screening effectiveness of passive equipment EN references EN for image rejection. Mandercom Ltd for CAI Page 4 of 27 Version 1, 21 November, 2017

5 4.5.1 General General measurement requirements Methods of measurements 4.6 Electrostatic discharge immunity test for active equipment General Performance criterion B (according to EN :2007) 4.7 Electrical fast transient/burst immunity test for AC power ports 4.8 Methods of measurement for telecom signal ports of multimedia network equipment 4.9 Measurement of indoor receiving antennas for broadcast signals Indoor antennas with additional RF network input port 5.6 Electrostatic discharge immunity test for active equipment 5.7 Electrical fast transient/burst immunity test for AC power ports 5.8 Performance requirements for telecom signal ports of multimedia network equipment 5.9 Applicability of EMC performance requirements and methods of measurement to different types of equipment 5.9 appears not to correspond to 4.9 Not applicable to most indoor antennas as they do not usually have an input port. Mandercom Ltd for CAI Page 5 of 27 Version 1, 21 November, 2017

6 4.9.2 Indoor antennas without additional RF network input port Indoor antennas without an RF network input port are out of scope. Refers to EN (withdrawn) and EN (BS EN 55020:2007+A12:2016 Sound and television broadcast receivers and associated equipment. Immunity characteristics. Limits and methods of measurement.) Applicability to RED EN is a harmonised standard under the EMCD, which is referenced by Article 3.1 of the RED. Mandercom Ltd for CAI Page 6 of 27 Version 1, 21 November, 2017

7 BS EN :2013 Scope EN applies to the radiation characteristics and immunity to electromagnetic disturbance of cable networks for television signals, sound signals and interactive services and covers the frequency range 0,15 MHz to 3,5 GHz. Methods of measurements Performance requirements Comments 4.1 Basic principles 5.1 General conditions 4.2 Radiation from cable networks 5.2 Radiation from cable networks and other sources 4.3 Immunity of cable networks 5.3 Immunity of cable networks Applicability to RED EN applies to networks, whereas the RED applies to equipment, so there appears to be no scope to apply EN to the RED. Mandercom Ltd for CAI Page 7 of 27 Version 1, 21 November, 2017

8 BS EN :2014 Scope This part of IEC is applicable to any coaxial cable network (including individual receiving systems) having in the forward path a coaxial cable output and primarily intended for television and sound signals operating between about 30 MHz and MHz. This part of IEC specifies the basic methods of measurement of the operational characteristics of cable network having coaxial cable outputs in order to assess the performance of these systems and their performance limits. 4 Methods of measurements at system outlet Comments 4.1 Performance limits 4.2 Mutual isolation between system outlets Applicable to all modulation formats 4.3 Amplitude response within a channel Applicable to all modulation formats 4.4 Chrominance-luminance gain inequalities PAL, SECAM only 4.5 Non-linear distortion PAL, SECAM, FM/AM radio, DVB QAM (i.e. DVB-C) only (OFDM excluded) 4.6 Carrier-to-noise ratio PAL, SECAM, FM/AM radio only 4.7 Echoes PAL, SECAM only 4.8 AM-VSB television, FM radio and FM television signal level PAL, SECAM, FM/AM radio only 4.9 Data echo rating and data delay inequality PAL, SECAM only 4.10 Interference in FM radio sound channels FM radio only 4.11 Methods of measurement for digitally modulated signals DVB, DAB 5 Performance requirements at system outlet Comments 5.1 General 5.2 Impedance Mandercom Ltd for CAI Page 8 of 27 Version 1, 21 November, 2017

9 5.3 Requirements at the terminal input 5.4 Carrier levels at system outlets Table 4 for all analogue signals, Table 5 for digital. 5.5 Mutual isolation between system outlets 5.6 Frequency response within a television channel at any system outlet 5.7 Long-term frequency stability of distributed carrier signals at any system outlet 5.8 Random noise Table 12 for analogue C/N limits, Table 13 for digital 5.9 Interference to television channels 5.10 Video baseband requirements Diff. gain and phase, echoes (analogue TV only) 5.11 Hum modulation of carriers in television channels 5.12 Requirements for data signal transmission Teletext 5.13 Digitally modulated signals - Additional performance requirements All DVB: BER, noise margin, MER, phase jitter/noise 5.14 FM sound radio - Additional performance requirements 6 Performance requirements at receiving antennas Comments 6.1 General 6.2 Method of measurement of field strength 6.3 Requirements 6.4 Interference reduction 7 Performance requirements at home network interfaces of cable networks Comments 7.1 General 7.2 Requirements for HNI1 for passive coaxial home networks 7.3 Requirements for HNI2 for active coaxial home networks 7.4 Requirements at HNI3 and at system outlet or terminal input when the home network is mainly of balanced type Mandercom Ltd for CAI Page 9 of 27 Version 1, 21 November, 2017

10 7.5 Requirements at HNI3 (Case C) 7.6 Requirements at HNI3 (Case D) Applicability to RED EN applies to networks, whereas the RED applies to equipment, so there appears to be no scope to apply EN to the RED. Mandercom Ltd for CAI Page 10 of 27 Version 1, 21 November, 2017

11 BS EN :2014 Scope This part of IEC provides the minimum performance requirements to be fulfilled in operation at the system outlet or terminal input and describes the summation criteria for the impairments present in the received signals and those produced by the CATV/MATV/SMATV cable network, including individual receiving systems. 4 Methods of measurement Comments 5 Subjective quality of television pictures in relation to the main impairments of the analogue composite television signal 5.1 Subjective quality scale 5.2 Subjective quality and objective parameters Comments 6 Summation of the impairments Comments 6.1 Impairments to be summed 6.2 Summation laws 6.3 Examples 7 Performance requirements in operation Comments 7.1 General 7.2 Impedance 7.3 Performance requirements at the terminal input 7.4 Performance requirements at system outlets Applicability to RED EN applies to networks, whereas the RED applies to equipment, so there appears to be no scope to apply EN to the RED. Mandercom Ltd for CAI Page 11 of 27 Version 1, 21 November, 2017

12 BS EN :2011 Scope This part of IEC lays down the measuring methods, performance requirements and data publication requirements for active wideband equipment of cable networks for television signals, sound signals and interactive services. This standard applies to all broadband amplifiers used in cable networks; covers the frequency range 5 MHz to MHz; applies to one-way and two-way equipment; lays down the basic methods of measurement of the operational characteristics of the active equipment in order to assess the performance of this equipment; identifies the performance specifications to be published by the manufacturers; states the minimum performance requirements of certain parameters. Amplifiers are divided into the following two quality levels: Grade 1: amplifiers typically intended to be cascaded; Grade 2: amplifiers for use typically within an apartment block, or within a single residence, to feed a few outlets. 4 Methods of measurement Comments 4.1 General 4.2 Linear distortion Return loss Describes use of signal or sweep generator, VSWR bridge and wideband detector. Would be better with scalar or vector analyser Flatness Recommends scalar or vector analyser Chrominance/luminance delay inequality for PAL/SECAM only Mandercom Ltd for CAI Page 12 of 27 Version 1, 21 November, 2017

13 4.3 Non-linear distortion General All using tones Types of measurements Intermodulation Composite triple beat Composite second order beat Composite crossmodulation Method of measurement of non-linearity for pure digital channel load Under consideration Hum modulation of carrier Most modern power supplies are switch mode. 4.4 Automatic gain and slope control step response Definitions Step response only applicable to cascaded amplifiers Equipment required Connection of equipment Measurement procedure 4.5 Noise figure General Y-factor method widely used, but not mentioned Equipment required Specifies the use of a variable calibrated noise source and selective power meter Connection of equipment Measurement procedure 4.6 Crosstalk attenuation Applicable to multiswitches Crosstalk attenuation for loop through ports Crosstalk attenuation for output ports Mandercom Ltd for CAI Page 13 of 27 Version 1, 21 November, 2017

14 4.7 Signal level for digitally modulated signals Only refers to EN Measurement of composite intermodulation noise (CINR) Appears to apply only to the return path General Describes BER, noise-in-gap and multi-tone methods Equipment required Connection of equipment Measurement procedure Presentation of the results 4.9 Immunity to surge voltages General Equipment required Connection of equipment Measurement procedure 5 Equipment requirements 5.1 General requirements 5.2 Safety Refers to EN Electromagnetic compatibility (EMC) Refers to EN Frequency range Requires it to be published 5.5 Impedance and return loss Grade 2 amplifiers (category C in Table 3): return loss 10 db, but 14 db at low frequencies 5.6 Gain Minimum and maximum gain Minimum and maximum gain to be published Gain control Gain range to be published Slope and slope control Characteristic and range to be published 5.7 Flatness Flatness to be published. <0.2 db pk-pk/0.5 MHz, and <0.5 db pk- Mandercom Ltd for CAI Page 14 of 27 Version 1, 21 November, 2017

15 pk/7 MHz 5.8 Test points Attenuation and flatness to be published. Return loss as other ports. 5.9 Group delay Only applicable to analogue signals. Digital signals have pilots to allow equalisation Chrominance luminance delay inequality Chrominance luminance delay inequality for other television standards and modulation systems 5.10 Noise figure Maximum noise figure to be published Non-linear distortion General Second order distortion All tone-based measurements Third order distortion Composite triple beat Composite second order Composite crossmodulation Maximum operating level for pure digital channel load Under consideration 5.12 Automatic gain and slope control Pilot frequencies, dynamic range and maximum output variation to be published Hum modulation Not relevant with SMPSUs? 5.14 Power supply AC voltage range, frequency range, power consumption to be published 5.15 Environmental Manufacturers to publish information as below General Refers to various parts of EN Storage (simulated effects of) Mandercom Ltd for CAI Page 15 of 27 Version 1, 21 November, 2017

16 Transportation Installation or maintenance Operation Energy efficiency of equipment Under consideration 5.16 Marking Marking of equipment Manufacturer s name and type number required Marking of ports Recommended symbols 5.17 Mean operating time between failure (MTBF) Under consideration 5.18 Requirements for multi-switches Control signals for multiswitches Specifies IEC and IEC Amplitude frequency response flatness Specifies IEC for splitters Return loss Specifies IEC for splitters Through loss To be published Isolation To be published. Output ports switched to the same input to meet IEC for splitters Crosstalk attenuation To be published Satellite IF to terrestrial signal isolation To be published 5.19 Immunity to surge voltages Degrees of testing levels Recommendation of testing level degree Recommended level 1 (1kV) for inhouse equipment Applicability to RED EN applies to all broadband amplifiers used in cable networks and covers the frequency range 5 MHz to MHz. There is therefore some degree of overlap with ETSI EN However, to meet the goals of the Radio Equipment Directive, specifications are needed that do not exist in EN See the comparison on page 26. There may be applicability for multiswitches: 4.6, 5.18 Mandercom Ltd for CAI Page 16 of 27 Version 1, 21 November, 2017

17 BS EN :2012 Scope This part of IEC is applicable to the methods of non-linearity measurement for cable networks which carry only digitally modulated television signals, sound signals and signals for interactive services. These methods take into account the specific signal form and behaviour of digitally modulated signals which differ from the analogue broadcast signals represented mainly by the existence of discrete carrier signals. 4 methods of measurement of non-linearity for full digital channel load Comments 4.1 Maximum operating output level using the measurement of bit error ratio (BER) General Requires a full spectrum of independent 256 QAM signals Equipment required Connection of the equipment Measurement procedure d) appears to imply use with amplifiers having no (nominal) slope Presentation of the results 4.2 Measurement of the carrier-to-interference noise ratio CINR General Requires a full spectrum of independent 256 QAM signals Equipment required Connection of the equipment Measurement procedure d) appears to imply use with amplifiers having no (nominal) slope Presentation of the results Mandercom Ltd for CAI Page 17 of 27 Version 1, 21 November, 2017

18 Applicability to RED EN describes a method of measuring the output power capability of a device by using a full digital channel load of DVB-C signals. In principle, it could be applied to amplifier products such as masthead amplifiers, indoor amplifiers and launch amplifiers, but it would need to be confirmed that: 1. the use of DVB-C (a single carrier signal) is appropriate for equipment that will carry DVB-T/T2 (multi-carrier signals); 2. it is necessary for the purposes of the RED to go beyond the linearity specification (defined input intercept) in ETSI EN As this test method can require over 100 independent stream generators and DVB-C modulators, it is an expensive approach for low-cost amplifiers used in the UK, for example, where there are only up to 8 off-air multiplexes. Measurement of power capability is under study by the CAI. Mandercom Ltd for CAI Page 18 of 27 Version 1, 21 November, 2017

19 BS EN :2016 Scope This part of IEC specifies the characteristics of equipment used in the headends of terrestrial broadcast and satellite receiving systems (without satellite outdoor units and without those broadband amplifiers in the headend as described in IEC ). The satellite outdoor units for fixed satellite systems (FSS) are described in ETSI ETS , and for broadcast satellite systems (BSS) in ETSI ETS Test methods for both types (FSS and BSS) of satellite outdoor units are laid down in ETSI ETS This part of IEC a) covers the frequency range 5 MHz to MHz; b) identifies performance requirements for certain parameters; c) lays down publication requirements for certain parameters; d) stipulates methods of measurements; e) introduces minimum requirements defining quality grades....headends are divided into the following three quality grades: Grade 1: central headend; Grade 2: hub headend or hubsite; Grade 3: MATV headend/individual reception headend. 4 Methods of measurement Comments 4.1 Methods of measurement for digitally modulated signals General Basic assumptions and measurement interfaces Signal level for digitally modulated signals Specifies using a spectrum analyser to measure the power Mandercom Ltd for CAI Page 19 of 27 Version 1, 21 November, 2017

20 4.2 Single-channel intermodulation specification for channel amplifier and frequency converter 4.3 Three-carrier intermodulation measurement 4.4 Two carrier intermodulation measurements for second- and third-order products General spectral density, then multiply by the bandwidth. This can introduce errors if the signal spectrum is not flat. It is better to use a spectrum analyser s channel power measurement facility, as all the correction factors are built in, and non-flat spectrum is accounted for Intermodulation products with test signals at frequencies fa and fb Signal levels 4.5 Carrier-to-spurious signal ratio at the output Carrier-to-spurious signal ratio at the output of equipment for AM TV systems Carrier-to-spurious signal ratio at the output of equipment for FM TV systems Shoulder attenuation 4.6 Signal-to-noise measurement Television carrier-to-noise ratio (analogue modulated signals) RF signal-to-noise ratio (SD,RF/N) for digitally modulated signals 4.7 Differential gain and phase for PAL/SECAM signals General Differential gain (for PAL/SECAM only) Differential phase Mandercom Ltd for CAI Page 20 of 27 Version 1, 21 November, 2017

21 4.8 Group delay measurements Group delay variation of analogue TV signals Procedure for the measurement of group delay variation on DVB channel converters 4.9 Phase noise of an RF carrier General Equipment required Connection of the equipment Measurement procedure Presentation of the results 4.10 Hum modulation of carrier General Description of the method of measurement Measuring procedure Calculating the hum modulation ratio T pulse response, K-factor 4.12 Chrominance/luminance delay inequalities (20T-pulse method) 4.13 Luminance non-linearity 4.14 Intermodulation distortion (FM stereo radio) General Equipment required Connection of equipment Measurement 4.15 Decoding margin (teletext) Mandercom Ltd for CAI Page 21 of 27 Version 1, 21 November, 2017

22 General Method of measurement and measuring set-up (Figure 31) Applicability of measuring set-up 5 Performance requirements and recommendations Comments 5.1 Safety 5.2 Electromagnetic compatibility 5.3 Environmental 5.4 Marking Marking of equipment Marking of ports 6 Equipment characteristics required to be met Comments 6.1 General 6.2 Power supply voltage 6.3 RF signal requirements Impedance (input) Impedance (output) Return loss (input, output) of equipment Grade 3 equipment to meet >10 db. See also EN , 5.5 (different grade definition) Return loss (output) of headend Typical back-off for digital against analogue signals Immunity against other signals in the FM radio and TV range Carrier-to-spurious-signals at output in the frequency range of 40 MHz to 862 MHz Image rejection for AM TV and FM radio Mandercom Ltd for CAI Page 22 of 27 Version 1, 21 November, 2017

23 6.3.9 Carrier to local oscillator signal ratio at the output for AM TV and FM radio Frequency stability Phase noise of digital modulated signals at the output of the headend In-channel group delay variation for digital modulated signals In-channel peak-to-peak amplitude response variation for digitally modulated signals Stability of sound intercarrier Stability of residual carrier amplitude Frequency stability - SAT IF/IF converter Typical modulation error ratio (MER) for a QAM signal Minimum C/N values at the output of the headend 6.4 Composite video signal requirements Impedance Return loss Signal voltage Polarity Offset voltage 6.5 Audio signal requirements Input impedance Output impedance Signal level 6.6 Requirements for decoding margin (teletext) Mandercom Ltd for CAI Page 23 of 27 Version 1, 21 November, 2017

24 6.7 IF signal requirements (AM-TV) Impedance Return loss 6.8 Antennas for terrestrial reception Impedance Return loss 14 db ( states recommended, not required to be met) (CAI benchmark specifies 6-8 db according to type) 6.9 Antenna amplifier Refers to Equipment characteristics required to be published Comments 7.1 General 7.2 Environmental conditions 7.3 Maximum permissible output level Appears not to mention criteria for digital signals 7.4 Operating range for output level 7.5 TV standard 7.6 Clamp 7.7 Noise figure Equipment without AGC Equipment with AGC 7.8 Data control signals, description of interface 7.9 Output level stability for TV modulators, TV converters and pilot generators 7.10 Pilot signal 7.11 Differential gain and phase Differential gain Mandercom Ltd for CAI Page 24 of 27 Version 1, 21 November, 2017

25 Differential phase 7.12 Group delay variation for analogue TV signals 7.13 Luminance non-linearity T-pulse T pulse 7.16 Hum modulation 7.17 Television carrier-to-noise 7.18 Audio in TV 7.19 Processing units for FM radio Audio input Stereo crosstalk Total harmonic distortion Intermodulation distortion Deviation, pre-emphasis 7.20 Antennas for terrestrial reception Antenna gain Gain wrt half wave dipole Sidelobe suppression >10 db recommended Return loss of antennas >14 db recommended 7.21 Control signals for outdoor units Refers to IEC Applicability to RED Much of this part of EN applies to analogue systems, and describes signal characteristics rather than equipment. Use for multiswitches appears to have been covered in EN Mandercom Ltd for CAI Page 25 of 27 Version 1, 21 November, 2017

26 Comparison of EN with EN , EN EN EN , EN Measurement Comment Comment Gain Gain to be stated by manufacturer. Gain variation limited to 4dB over the specified frequency range Noise figure Maximum noise figure specified (3 db, 4 db or 7 db according to amplifier type) EN , Gain to be stated by manufacturer. Gain variation limited to <0.2 db pk-pk/0.5 MHz, and <0.5 db pkpk/7 MHz EN , 5.10 Noise figure to be stated by manufacturer Amplifier intermodulation Input intercept >-4 dbm EN , to require publication of output levels that give 60dB signal to distortion ratio Return loss Maximum return loss specified (5 db, 8 db according to case) Selectivity classifications Specified, masks for four filtering cases Not specified? EN , 5.5: Grade 2 amplifiers (category C in Table 3): return loss 10 db, but 14 db at low frequencies Active antenna gain Specified, between 6 dbi and 20 dbi EN , 4.9.2: antennas without separate RF inputs are out of scope Active antenna figure of merit Specified, >-5 db EN , 4.9.2: antennas without separate RF inputs are out of scope Active antenna intermodulation Specified, input intercept >130 dbµv/m EN , 4.9.2: antennas without separate RF inputs are out of scope Internal immunity Specifies EN EN , (incomplete) Mandercom Ltd for CAI Page 26 of 27 Version 1, 21 November, 2017

27 EN and EN series standards that are listed by BSI as current (November 2017) EN Cable networks for television signals, sound signals and interactive services BS EN :2012+A1:2015 BS EN :2013 BS EN :2002 Electromagnetic compatibility for equipment Electromagnetic compatibility for networks Interfaces for CATV/SMATV headends and similar professional equipment for DVB/MPEG-2 transport streams EN Cable networks for television signals, sound signals and interactive services BS EN :2014 BS EN :2014 BS EN :2014 BS EN :2011 BS EN :2012 BS EN :2008 BS EN :2016 BS EN :2011 BS EN :2005+A1:2015 BS EN :2005 BS EN :2009 BS EN :2014 BS EN :2017 BS IEC :2017 BS EN :2010 BS EN :2012 BS EN :2014 BS EN :2017 System performance of forward paths RF cabling for two way home networks Performance requirements for signals delivered at the system outlet in operation Active wideband equipment for cable networks Methods of measurement of non-linearity for full digital channel load with DVB-C signals Passive wideband equipment for coaxial cable networks Headend equipment Optical equipment Hybrid Fibre Coax Outside Plant Status Monitoring. Physical (PHY) Layer Specification Hybrid fibre coax outside plant status monitoring. Media access control (MAC) layer specification Hybrid fibre coax outside plant status monitoring. Power supply to transponder interface bus (PSTIB) System performance for return paths Safety Electromagnetic compatibility of systems Optical systems for broadcast signal transmissions Bandwidth expansion for broadcast signal over FTTH system Optical transmission systems using RFoG technology System performance of forward paths loaded with digital channels only evaluated in this document Mandercom Ltd for CAI Page 27 of 27 Version 1, 21 November 2017