IEC 60512-99-003:2023 is used for the assessment of connectors within the scope of SC 48B that are used in balanced single-pair communication cabling with remote power, in support of e.g., IEEE 802.3 remote powering applications for point-to-point connections. The object of this document is to detail a test schedule to determine the ability of sets of single-pair connectors as defined in the IEC 63171 series to withstand a minimum of 100 mechanical operations with electrical load, where an electrical current is being passed through the connector in accordance with IEC 60512-9-3 during the separation (unmating) step. This document does not cover multidrop powering applications of single-pair connectors.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3 Terms, definitions and acronyms 3.1 Terms and definitions 3.2 Acronyms 4 General 5 Preparation of specimens 6 Test circuit requirements 6.1 General <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 6.2 Voltage and current Figures Figure 1 \u2013 Test circuit diagram for one pole Table 1 \u2013 Remote powering test requirements <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6.3 Auxiliary equipment 7 Test methods 7.1 Mechanical operations with electrical load 7.2 Flowing mixed gas corrosion 8 Test and test schedule \u2013 Test group UEL 1 <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Table 2 \u2013 Test group UEL 1 <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex A (informative)Test voltage and current setting instructions A.1 General A.2 Rationale A.3 Suggested setting instructions <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex B (informative)Discussion of the test circuit elements B.1 General B.2 The test circuit elements B.2.1 Power supply B.2.2 Inductors B.2.3 PD load B.3 An example of calculating voltage and load <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Annex C (informative)Development of the test circuit C.1 Model of the PSE and the PD C.2 Removal of the semiconductors Figure C.1 \u2013 PSE and PD model Figure C.2 \u2013 Removal of the semiconductors <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | C.3 Combination of the elements C.4 Further adjustments Figure C.3 \u2013 Combination of the elements Figure C.4 \u2013 Removal of the capacitors and concentration of the inductors <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | C.5 Final schematic for unmating under load Figure C.5 \u2013 Final schematic <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Connectors for electrical and electronic equipment. Tests and measurements – Endurance test schedules. Test 99c: Test schedule for balanced single-pair connectors separating (unmating) under electrical load<\/b><\/p>\n |