Kodi PoE-adaputala. Mphamvu pa Efaneti

Alipidwa ano IT-katswiri mtundu wa chingwe "zopotoka awiri", limene ma PC akhoza kompyuta, wabisika ndi chidwi mwayi. Mfundo ndi kuti mwa iwo akhoza opatsirana osati digito mtsinje deta, komanso mphamvu. PoE-adaputala - kwa chipangizo yowonjezera ayenera kugwiritsidwa ntchito. Komabe, pali ambiri mitundu ndi njira zamakono deta kulumikiza kwa maukonde. ndi limatchula za chipangizo chamagetsi chiyani?

zokhuza chipangizo

PoE-adaputala - chipangizo ichi, athe kuthekera PoE-luso kuti amalola kusamutsa kudzera ochiritsira zopotoka-awiri mphamvu kwa chipangizo ankafuna. Pankhaniyi, luso Efaneti-chingwe cha kusinthitsa chizindikiro digito sanataye, ndipo maukonde ndi bwinobwino.

Chinawathandiza kumvetsa n'chakuti achidule PoE - Mphamvu pa Efaneti. Kuti ndi "mphamvu pa muyezo Efaneti." PoE-adaputala nthawi zina amatchedwa "injector" - koma mtundu wachiwiri wa chipangizo akadali zolondola kuganizira kusuntha woyamba. Tikuphunzira ntchito yeniyeni chipangizo malipoti okhudza nkhani ya imapanga PoE-sayansi.

Werengani zambiri za umisiri

Technology Mphamvu pa Efaneti limakupatsani kupereka mphamvu zosiyanasiyana mitundu ya zipangizo: Wi-Fi-routers, makamera, yosungirako zipangizo. The mwayi waukulu njira imeneyi ndiye kuti adzawononga kutsegula kwa ingachititse umodzi wa mawaya - onse a digito chizindikiro Kuwulutsa, ndi kupereka magetsi.

Chifukwa, unsembe Intaneti palibe kuyala mawaya kwa mwake, komanso kukhazikitsa zofunika zina zamagetsi. Nthawi zina, unsembe wa zingwe mphamvu kungavute ndi malo suboptimal thupi zigawo zikuluzikulu maukonde. Mwachitsanzo, zimachitika kuti Wi-Fi-adaputala amapereka mbendera bwino pa mfundo nyumba imene kubweretsa magetsi mabvuto. The Tinganenenso chimodzimodzi za makamera: zina zikhonza kukhala zofunika kuti polojekiti m'madera amene n'zovuta kupereka mphamvu.

PoE umisiri bungwe kugwirizana zipangizo mu kubwereketsa, chimene angathe, monga taonera pamwambapa, pamene chipangizo linanena bungwe mu maukonde ndi kugwiritsa ntchito mphamvu izo. Njira imeneyi angagwiritsidwe ntchito pa nkhani ya kukulitsa panopa zomangamanga maukonde. Kwenikweni kubweretsa mphamvu kwa malo ogulitsira alipo.

Ubwino wa njira

Choncho, ngati chifupikitso cha ubwino chifungulo cha luso mu funso, iwo akhoza kupanga zifukwa zotsatirazi:

- kugwiritsa ntchito chingwe chomwecho n'zotheka onse kupereka mphamvu ndi nzeru deta digito;

- zotheka zachuma phindu kugwirizana ndi pakalibe kufunika kukhazikitsa zingwe mphamvu ndi zina zida zofunikira;

- amakwaniritsa mkulu mlingo wa maukonde chitetezo lolingana mtundu wa zomangamanga, zikomo miyezo kuonetsetsa chitetezo zofunika zigawo zikuluzikulu ndi voteji kukakhala;

- pali kuthekera kukulitsa panopa zomangamanga network gulu la kulankhulana m'madera amene kale kuwerengedwa kwa ogwiritsa chifukwa kufunika atagona zingwe magetsi;

- pali kuthekera kulinganiza ulamuliro zipangizo kutali kudzera ndondomeko maukonde.

Ife tsopano kuphunzira mfundo zofunika pa maziko amene ntchito PoE-network.

miyezo

The protocol zoyambirira za kulowerera gulu la zomangamanga yoyenera - IEEE 802.3af. Ndi cholinga monga maukonde chipangizo mitundu 2 - magwero mphamvu ndi ogula. Iwo akhoza kukhala, monga taonera pamwambapa, Wi-Fi-routers, maukonde yosungirako zipangizo. kamera ntchito yapamwamba m'magulu otere. Pakati pa opanga odziwika mtundu popanga Msuzi, amene akhoza kupereka kwa PoE-adaputala - olamulira.

Msuzi wa mtundu woyamba - magwero - akhoza inali ku mbali yoyamba ya maukonde kapena pakati pa chipangizo ya m'manja kupereka mphamvu ya magetsi, ndi ogula. Ankaona muyezo umathandiza magetsi kwa unshielded zopotoka awiri mtundu magulu osiyanasiyana - makamaka amapereka 5, 5e ndi 6, pa voteji wa 48 V ndi mowa mphamvu ya pakati pa 15 Watts. Pankhaniyi, palibe chikoka pa khalidwe la kufala kwa deta digito pa chingwe si anapereka ndi kukulitsa yokulirapo ya zomangamanga panopa maukonde mu mawonekedwe a mphamvu ndi sayembezereka.

Njira kutsatira ndi voteji

Maukonde, amene umagwira ntchito pa maziko a Mphamvu pa muyezo Efaneti, angathe kupatsidwa magetsi kudzera ziwembu awiri.

Choyamba, n'zotheka ntchito mu chigawo chomaliza cha mizere chizindikiro tiransifoma, kuti wachinsinsi monga mkulu. Yobweretsa voteji umagwiritsidwa ntchito pakati ndikupeza iwo. Mofanana ndi iwo, koma kumbali kolandira, ndi voteji atachotsedwa. luso amenewa limachititsa ntchito awiri womwewo wa mawaya kwa chizindikiro wailesi mkulu-pafupipafupi, ndi kufala kwa magetsi.

Chachiwiri, munthu akhoza kugwiritsa ntchito kuti zimafalitsa awiri kupezeka mphamvu alipo lolingana mtundu chingwe. Kodi izi ndi zotheka? mfundo ndi yakuti kuchita 2 mabanja 4 amene ali Efaneti-chingwe, nthawi zambiri sadatsatire. Kumene, pamene izo zifika kugwilizana awo ndi 100 Base TX luso.

Anaona kulunjika wa zikugwira ntchito zopezera mu PoE mtundu amaganiza kuti ntchito makamaka kwa injectors kudzadalira njira - woyamba kapena wachiwiri opatsirana voteji. Choncho, mwayi amalembedwa 802.3af muyezo mpata kufala magetsi kuti peyala ya zingwe kapena 1.2, mwachitsanzo, 4.5 chingwe. Nawonso injectors Tingakhale yogwirizana ndi 100 Base TX luso. Komabe, ngati ndi ziboda, ndiye iwo amayenera kugwira ntchito ndi aliyense wa njira mphamvu kufala tatchulazi, ngakhale polarity cha kugwirizana kwa tidzasandulika.

Mitundu PoE zipangizo

Pali magulu angapo zida angathe kugwira ntchito mu mode mphamvu kufala pa awiri zopotoka. PoE-adaputala - mmodzi wa iwo (lolingana Msuzi ndi ambiri mitundu - tiphunzire kulunjika awo). Pamodzi ndi iye, palinso PoE-masiwichi, komanso zipangizo kudya. Nthawi zambiri, iwo akhoza Integrated mu kachitidwe kamodzi. Tiyeni kuphunzira mfundo iliyonse mitundu anasankha zida zambiri.

wonyeketsa zipangizo

Kudya zipangizo - Ndipotu, yemweyo maukonde Msuzi, lomwe lili ndi mphamvu pa zopotoka awiri. An khalidwe zofunika wa iwo - athandizira impedance. Chithunzi lolingana nthawi anatsimikiza osiyanasiyana 19-26,5 ohms. Childs, kapangidwe ka dongosolo, amene olumikizidwa kwa zipangizo wonyeketsa, capacitor ndi pano.

masiwichi

PoE Sinthani lakonzedwa kuonetsetsa kugwira ntchito maukonde mawu a kuzindikira kulondola kwa kugwirizana chingwe mfundo mwayi. Network lolingana mtundu ntchito potengera protocol 802.3af, zomwe tanena pamwambazi, komanso 802.3at. Kulola kupereka mogwirizana zipangizo zosiyanasiyana malinga zotheka kukakhala mphamvu. Ngati PoE lophimba si ntchito, zikuoneka kuti chifukwa yofanana mwachisawawa mu panopa ankadya ndi chipangizo anapotoza awiri amalephera.

adaputala azamagetsi

Msuzi wa mtundu uwu, monga taonera pamwambapa, anawagawira pa mitundu zina. Choncho, PoE-adaputala angakhale okwanira a. Mu dongosolo zake, magetsi alipo, komanso conjugation amafotokozera, sipangakhalenso okonzeka ndi kusakonda kuwoneka Pankhaniyi ngati bokosi laling'ono kapena waya ochiritsira. Mphamvu adaputala ya PoE zoona, nthawi zina amatchedwanso injector ndi. Mu msika Russian pali ambiri a mtundu umenewu njira. Mwachitsanzo, wotchuka adaputala PoE TP Link 150S. Zofunika kwambiri luso khalidwe la lolingana mtundu devaysa - okhazikika voteji. ntchito akadakwanitsira akuti ndi 48, ngati tikukamba za chitsanzo zachulukazi ndi chizindikiro TP Link.

mtundu wina wa PoE-adaputala - kutengera. Koma iye komanso adamulowetsa kupereka zipangizo mphamvu kudzera awiri opiringizika, koma amene Sali wachinsinsi monga kudya okha. Kuti zipangizo ngati kugwira ntchito, ndi zofunika kuti mphamvu si upambana 24 Watts. Mwina kudziŵika kuti mu chimango cha kalasi zipangizo allocated Msuzi, yoperekedwa kwa gulu la ziboda. Ndipotu, iwo akhoza zimachitika ndi zipangizo wonyeketsa.

Ngati ife kulankhula za PoE-adaputala azamagetsi, ziboda, iwo anapangidwa kwa ntchito ndi zina zipangizo - PoE-Sinthani. Kuti ndi ntchito yaikulu - kulekana kwa deta maukonde mu mitsinje osiyana Kuwulutsa wotsatira pa chipangizo kuti simuli gulu zipangizo wonyeketsa. Ziboda ndi udindo kusintha voteji amene ntchito kwa iwo, kuchepetsa iwo amene akadakwanitsira zipangizo osachiritsika - mwachitsanzo, kungakhale mu ziwerengero 5, 12 kapena 48 V.

Nawonso ziboda amagwiritsidwa zimagawidwa m'magulu mitundu iwiri - udakali chabe. Koma choyamba, iwo akhoza kugwira monga magetsi, ndipo ndi kotunga adaputala azamagetsi. zipangizo zimenezo zimaphatikizapo Mwachitsanzo, chiboda mtundu DWL-P50 ku D-Link. PoE-adaputala wachinsinsi monga mtundu chipangizo pansi kulingalira angakhalenso chabe. Iwo angakhoze kokha ntchito ndi injectors. Pankhaniyi, ali akatswiri, iwo nthawi zambiri anagulitsa pamodzi phukusi limodzi.

Mokoma adaputala azamagetsi opareshoni

Ndi adaputala azamagetsi yake mogwirizana Kumathandiza Mphamvu pa luso Efaneti, mavuto ndi gulu la ntchito maukonde sayenera zimachitika. Koma mavuto ena chifukwa cha mfundo za ntchito m'magulu otere angathe zimachitika. Mwachitsanzo, PoE-Sinthani angaone kuti yogwira gwero chipangizo si yambiri, ndipo maukonde n'cholinga choti De-imapatsidwa mphamvu ndi chakuti dongosolo ndi opareshoni mu ziboda chabe. M'pofunika nawonso, m'malo ndi yogwira. Vuto lina zotheka - kuchokera voteji pamene inu muyesera kulumikiza chipangizo wonyeketsa kusinthana ndi. Iwo akhoza kuthetsa khazikitsa devaysa zina - PoE-Converter.

Choona chidwi ndi mawu a ndalama za ogwira ntchito, zimene anagonjetsa network ndi ochepa zipangizo zotha yopindulitsa kwambiri kugwiritsa ntchito Msuzi chabe, ndi lalikulu - yogwira. Ena IT-akatswiri amakhulupirira kuti ngakhale pambuyo chiwerengero cha mfundo mwayi kuposa zidutswa 3, mungagwiritse ntchito adaputala azamagetsi yogwira.

mtundu akadakwanitsira chingwe

Mphamvu pa luso Internet akusonyeza nkhani Choncho zopotoka awiri. Koma iwo ali, monga mukudziwa, mitundu yosiyanasiyana - mwachitsanzo, 2 ndi 4 awiriawiri. Ndi mmodzi uti bwino yosayenera unsembe wa mtundu yoyenera maukonde? Malinga ndi akatswiri, ndi magwiridwe a dongosolo adzapulumutsa ntchito mtundu uliwonse wa chingwe. Koma ngati katundu wolemera pa lophimba ndi - mwachitsanzo, ngati inu ntchito zilipo madoko ake onse, chingwe ndi awiriawiri 4 - Njira.