{"id":422992,"date":"2024-10-20T06:43:59","date_gmt":"2024-10-20T06:43:59","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-62488-22017-2\/"},"modified":"2024-10-26T12:37:52","modified_gmt":"2024-10-26T12:37:52","slug":"bs-en-62488-22017-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-62488-22017-2\/","title":{"rendered":"BS EN 62488-2:2017"},"content":{"rendered":"
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 1 Scope Figures Figure 1 \u2013 Schematic representation of the scope of IEC 62488-2 <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | 2 Normative references <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | 3 Terms, definitions and abbreviations 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | 3.2 Abbreviations <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | 4 Low frequency side interfaces 4.1 General Figure 2 \u2013 Generic architecture of an APLC terminal <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | 4.2 Analogue interfaces 4.2.1 General 4.2.2 Voice frequency band 4.2.3 Nominal impedance 4.2.4 Return loss 4.2.5 Degree of unbalance to Earth 4.2.6 ITU-T voice channel interface 4.2.7 Subscriber interface <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | 4.2.8 PBX interconnection interface 4.2.9 Narrowband telegraphic channel interface Figure 3 \u2013 Subscriber PBX interfaces local and remote Figure 4 \u2013 Interfaces for PBX trunk interconnection through APLC link <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | 4.3 Analogue teleprotection system interface 4.3.1 Description Figure 5 \u2013 Low symbol rate ITU-T telegraphic channelling <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | 4.3.2 Integrated teleprotection 4.3.3 Teleprotection interface frequency band 4.3.4 Teleprotection interface impedance 4.3.5 Teleprotection interface reflection 4.3.6 Teleprotection interface signal levels 4.3.7 Teleprotection interface control circuits <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | 4.4 Digital interfaces 4.4.1 Telephony signaling interface 4.4.2 Internal data modem <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | Figure 6 \u2013 Commonly used EIA RS-232 connector Figure 7 \u2013 Commonly used V.11 connector <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | Tables Table 1 \u2013 FSK symbol rate and related narrowband standards <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | 5 Transmission line side high frequency interface 5.1 APLC high frequency band and channelling Figure 8 \u2013 ETH IEEE 802.3 RJ45 type connector Figure 9 \u2013 ETH IEEE 802.3 SC type connector <\/td>\n<\/tr>\n | ||||||
32<\/td>\n | 5.2 Frequency accuracy 5.3 Signal levels 5.4 Nominal impedance 5.5 Return loss 5.6 Degree of unbalance to earth 5.7 Tapping loss <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | 5.8 Spurious emissions Figure 10 \u2013 Tapping loss limits for APLC terminals <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | 6 Quality and Performance 6.1 General Figure 11 \u2013 Maximum level of spurious emissions outside the high frequency band <\/td>\n<\/tr>\n | ||||||
35<\/td>\n | 6.2 APLC internally generated noise 6.3 Automatic gain control 6.4 Limiter action 6.5 Transmit\/Receive frequency difference 6.6 Attenuation distortion Figure 12 \u2013 Reference points for measuring APLC parameters <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | Figure 13 \u2013 Attenuation distortion limits for the voice frequency band of 300 Hz to 3400 Hz (ITU-T G.232) Figure 14 \u2013 Attenuation distortion limits for the voice frequency band of 300 Hz to 2400 Hz Figure 15 \u2013 Attenuation distortion limits for the voice frequency band of 300 Hz to 2000 Hz <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | 6.7 Group-delay distortion Figure 16 \u2013 Group delay distortion limits for the voice frequency band of 300 Hz to 3400 Hz Figure 17 \u2013 Group delay distortion limits for the voice frequency band of 300 Hz to 2400 Hz <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | 6.8 Harmonic distortion 6.9 Selectivity 6.10 Crosstalk attenuation 6.10.1 Co-channel crosstalk attenuation 6.10.2 Inter-channel crosstalk attenuation Figure 18 \u2013 Group delay distortion limits for the voice frequency band of 300 Hz to 2000 Hz <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | 7 Testing 7.1 General 7.2 Test setup for APLC link tests 7.3 Return loss <\/td>\n<\/tr>\n | ||||||
40<\/td>\n | 7.4 Degree of unbalance to earth 7.4.1 General Figure 19 \u2013 Test circuit for return loss measurement <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | 7.4.2 LCL 7.4.3 OSB Figure 20 \u2013 Test circuit for LCL measurement (Tx port) <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | 7.5 Tapping loss Figure 21 \u2013 Test circuit for OSB measurement (Rx port) Figure 22 \u2013 Test circuit for Tapping Loss measurement <\/td>\n<\/tr>\n | ||||||
43<\/td>\n | 7.6 Spurious emissions 7.6.1 Single channel terminals 7.6.2 Multi-channel terminals 7.7 Selectivity <\/td>\n<\/tr>\n | ||||||
44<\/td>\n | 7.8 Co-channel and inter-channel crosstalk attenuation 8 Configuration and management 8.1 General 8.2 Configuration Figure 23 \u2013 Test circuit for selectivity measurement <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | 8.3 Network management system 8.4 Local terminal alarms 9 Cyber security 9.1 General <\/td>\n<\/tr>\n | ||||||
46<\/td>\n | 9.2 Authentication 10 APLC safety 10.1 General 10.2 Safety reference standard 10.3 Classification of APLC Terminals <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | Table 2 \u2013 Basic insulation [Table C.6 of IEC 60255-27:2013] Table 3 \u2013 Double or reinforced insulation [Table C.10 of IEC 60255-27:2013] <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | 10.4 Ingress protection 10.5 Type and routine tests <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | Table 4 \u2013 List of Type and Routine Tests [Table 12 of IEC 60255-27:2013] <\/td>\n<\/tr>\n | ||||||
50<\/td>\n | 11 Storage and transportation, operating conditions, power supply 11.1 Storage and transportation 11.1.1 Climatic conditions Table 5 \u2013 Classification of climatic conditions [Table 1 of IEC 60721-3-1:1997] <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | 11.1.2 Mechanical Table 6 \u2013 Climatic tests for storage and transportation <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | 11.2 Operating conditions 11.2.1 Climatic conditions <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | 11.2.2 Mechanical Table 7 \u2013 Classification of climatic conditions from Table 1 of IEC 60721-3-3:2002 <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | 11.2.3 Operating conditions set of tests Table 8 \u2013 Classification of mechanical conditions from Table 6 of IEC 60721-3-3:2002 Table 9 \u2013 Climatic tests <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | 11.3 Power supply 11.3.1 AC supply 11.3.2 DC supply Table 10 \u2013 Sinusoidal vibration test Table 11 \u2013 Non-repetitive shock test <\/td>\n<\/tr>\n | ||||||
56<\/td>\n | 12 EMC 12.1 Emission and Immunity reference standards <\/td>\n<\/tr>\n | ||||||
57<\/td>\n | 12.2 Emission 12.2.1 Radiated and conducted emission Table 12 \u2013 Emission \u2013 Enclosure port [Table 1 of IEC 61000-6-4:2011 (ed.2.1)] <\/td>\n<\/tr>\n | ||||||
59<\/td>\n | Table 13 \u2013 Emission \u2013 Low voltage AC mains port [Table 2 of IEC 61000-6-4:2011 (ed.2.1)] <\/td>\n<\/tr>\n | ||||||
60<\/td>\n | Table 14 \u2013 Emission \u2013 Telecommunications\/network port [Table 3 of IEC 61000-6-4:2011 (ed.2.1)] <\/td>\n<\/tr>\n | ||||||
61<\/td>\n | 12.2.2 Low frequency disturbance emission 12.3 Immunity 12.3.1 EMC Environment Figure 24 \u2013 LF disturbances measurement setup <\/td>\n<\/tr>\n | ||||||
62<\/td>\n | Table 15 \u2013 Characterization of the electromagnetic phenomena [Table 1 of IEC 61000-6-5:2015] <\/td>\n<\/tr>\n | ||||||
63<\/td>\n | 12.3.2 Functional requirements 12.3.3 Immunity test list Table 16 \u2013 Port classification Table 17 \u2013 Performance criteria <\/td>\n<\/tr>\n | ||||||
64<\/td>\n | Table 18 \u2013 Immunity test list <\/td>\n<\/tr>\n | ||||||
66<\/td>\n | Annex A (normative) Characteristics of compandors for telephony (based on the withdrawn ITU-T Recommendation G.162) A.1 General A.2 Characteristics of compandors A.3 Definition and value of the unaffected level A.4 Ratio of compression and expansion <\/td>\n<\/tr>\n | ||||||
67<\/td>\n | A.5 Range of level A.6 Signal to noise ratio <\/td>\n<\/tr>\n | ||||||
68<\/td>\n | Annex B (informative) APLC communication model B.1 General Figure B.1 \u2013 Basic components of the APLC Terminal Figure B.2 \u2013 Baseband and pass band signals correspondence in SSB modulation <\/td>\n<\/tr>\n | ||||||
69<\/td>\n | Figure B.3 \u2013 APLC Terminal LF, baseband and HF interfaces identification Figure B.4 \u2013 Examples for low frequency signals with bandwidth 4 kHz (IEC 62488-1) Figure B.5 \u2013 Composition of the modulating baseband for eight telephony channels with signalling APLC terminal (source Japan NC) <\/td>\n<\/tr>\n | ||||||
70<\/td>\n | Figure B.6 \u2013 Line-up limits of circuits for a 4 kHz channel terminal (ITU-T G.120) <\/td>\n<\/tr>\n | ||||||
71<\/td>\n | B.2 AM-SSB modulation technique Figure B.7 \u2013 Example of HF channelling plan (4 kHz based \u2013 IEC 62488-1) Figure B.8 \u2013 Principle of phasing SSB modulator <\/td>\n<\/tr>\n | ||||||
72<\/td>\n | B.3 Functional blocks of an APLC terminal Figure B.9 \u2013 Principle of phasing SSB demodulator <\/td>\n<\/tr>\n | ||||||
73<\/td>\n | Figure B.10 \u2013 Generic APLC terminal main functional blocks <\/td>\n<\/tr>\n | ||||||
74<\/td>\n | Annex C (informative) HF modulated power signal C.1 General C.2 Discrete tone signals <\/td>\n<\/tr>\n | ||||||
75<\/td>\n | Figure C.1 \u2013 Sine wave and its probability distribution <\/td>\n<\/tr>\n | ||||||
76<\/td>\n | C.3 Voice channels Figure C.2 \u2013 Probability of combined sine waves <\/td>\n<\/tr>\n | ||||||
77<\/td>\n | C.4 Composite channels Figure C.3 \u2013 Nominal high frequency band output power of multichannel PLC terminals <\/td>\n<\/tr>\n | ||||||
78<\/td>\n | Table C.1 \u2013 Load capacity of voice channels <\/td>\n<\/tr>\n | ||||||
79<\/td>\n | C.5 Calculation examples C.5.1 General C.5.2 Calculation example 1: Load capacity and PEP C.5.3 Calculation example 2: Power distribution adjustment <\/td>\n<\/tr>\n | ||||||
81<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Power line communication systems for power utility applications – Analogue power line carrier terminals or APLC<\/b><\/p>\n |