I-POE Amandla phezu kokuvikelwa kokuhlinzwa kwe-Ethernet

Ukuthuthukiswa kobuchwepheshe be-Power over Ethernet (POE) kunamandla kakhulu. Ukuthuthukiswa kwalobu buchwepheshe kungenza kube lula ukufakwa nokuthunyelwa kwemishini kagesi, ngaleyo ndlela kuqede isidingo sezintambo ezizimele zokudlulisela. Namuhla, ubuchwepheshe bokuhlinzeka ngogesi (i-POE) busetshenziswa kakhulu ezinhlelweni zezimboni ezifana nokuphepha, ukuxhumana, namagridi ahlakaniphile ukuze kuzuzwe idatha, ukudluliswa kwevidiyo, ukulawulwa kokugeleza, kanye nokunikezwa kwamandla ngamabhasi ngaphakathi kohlelo. Kodwa-ke, ngenxa yesimo esinzima sokusebenza se-Industrial Ethernet, ukuhlinzwa nokuvikelwa okuqinile kwechweba le-POE kubalulekile. Nasi isingeniso esifushane sohlelo lokuvikela lohlelo lwe-POE:
Izinga:
(1) I-IEC61000-4-2: IZINGA4: Xhumana ne-8kV; Umoya: 15kV
(2) IEC61000-4-5: 10/700us LEVELX: 6KV
Isimiso: Lezi zinhlelo ezimbili ezingenhla zisebenzisa inhlanganisela yokuvikelwa kwezigaba ezimbili, isiteji esingaphambili sibe yi-SET ye-electrostatic silicon suppressor kanye ne-negative clamp voltage suppressor NVCS, ukuze imunce futhi ikhulule amandla amakhulu okuqhuma. Idivayisi yokuvikela yesiteji sangemuva iyi-ESD yokuvikela ugesi kagesi, ene-clamp enembile kanye nesivinini sokuphendula ngokushesha, Gcoba amandla ayinsalela esiteji sangaphambilini, yehlisa i-voltage ibe phakathi kwebanga isekethe engemuva engamelana nayo, futhi ivikele ingemuva- qeda chip. Ekuvikelweni kokuphakelwa kukagesi okungokwesiko okungu-48V, kusetshenziswa izinto ezivikelayo ezengeziwe ukuze kuthuthukiswe izinga lokuhlola, elithatha umthamo omkhulu futhi elinomthelela ongemuhle wokulawula ku-voltage eyinsalela, okuholela ekwandeni kwamathuba okulimala kwe-chip engemuva. Ngalesi sizathu, i-SPSEMI Instant Thunder Electronics ithuthukise uchungechunge lwento esetshenziswayo ye-clamp voltage suppressor NVCS eqondene ngqo ne-POE (48V power supply). Le nto inenani elikhulu lokugeleza kanye nevolumu encane, ehlanganiswe ku-SMC. Mayelana nokulawulwa kwe-voltage esalayo, cishe i-20V ephansi kunezinto ze-TVS zendabuko, ezingavikela ngempumelelo i-chip yangemuva.
Izinga:
(1) I-IEC61000-4-2: IZINGA4: Xhumana ne-8kV; Umoya: 15kV
(2) IEC61000-4-5: 10/700us LEVELX: 6KV
Isimiso: Lezi zinhlelo ezimbili ezingenhla zamukela ukuvikelwa kwezigaba ezimbili. Isiteji esingaphambili yi-negative clamp voltage suppressor NVCS, edonsa futhi ikhiphe amandla amakhulu okuhlinzwa. Idivayisi yokuvikela yesiteji sangemuva iyi-ESD yesivikeli se-electrostatic, esinamandla kagesi abambayo anembile kanye nesivinini sokusabela esisheshayo. Imunca amandla ayinsalela esiteji sangaphambili, yehlise i-voltage ibe ngaphakathi kwebanga isekethe engemuva engamelana nayo, futhi ivikela i-chip engemuva.
Ngokwezinga lamazwe ngamazwe le-IEC61000-4-5, amandla ombani ngokuvamile ajovwa ngendlela evamile. Ekwakhiweni kwesikimu, ukunakwa kukhokhwa ekuvikelweni kwemodi evamile. Isivikeli se-electrostatic TUSD03FB sengezwe phakathi kwemigqa engayodwa yokuvikela imodi ehlukile, sisusa amandla ayinsalela ahlanganiswe ngemuva ngesikhathi sokushaywa kombani, futhi sivikela umehluko wengcindezi phakathi kwemigqa ukuthi ungashintshi. Uhlelo lokuvikela olungenhla luqinisekiswe yi-SPSEMI Transient Thunder Electronics Laboratory.
Okungenhla ukubuka okufushane kwe-POE Power over Ethernet Surge Protection, okungasebenza njengereferensi yawo wonke umuntu. Inkampani yethu ineqembu eliqinile lezobuchwepheshe futhi ingahlinzeka ngezinsizakalo zobuchwepheshe kumakhasimende. Njengamanje, inkampani yethu inemikhiqizo ehlukahlukene: ehlakaniphilewena, ukuxhumana Imojula ye-Optical, i-optical fiber module, i-sfp Optical module,oltimishini, Ethernetshintshanezinye izinto zenethiwekhi. Uma udinga, ungaba nokuqonda okujulile.