Iyo PoE switch inopa sei PoE simba

PoE switch inopa sei PoE simba? PoE simba rekupa musimboti wekutarisa

Iyo nheyo yePoE magetsi ekupa iri nyore chaizvo. Zvinotevera zvinotora PoE chinja semuenzaniso kutsanangura zvakadzama musimboti wekushanda wePoE switch, nzira yekupa magetsi ePoE uye kureba kwayo.

Maitiro ePoE anochinja anoshanda sei

Mushure mekubatanidza mudziyo wekugamuchira magetsi kuPoE switch, switch yePoE ichashanda seizvi:

Danho 1: Tsvaga iyo powered mudziyo (PD). Chinangwa chikuru ndechekuona kana iyo yakabatana mudziyo iri chaiyo powered mudziyo (PD) (muchokwadi, ndeyekuona iyo powered mudziyo unogona kutsigira simba pamusoro peEthernet chiyero). Iyo PoE switch inoburitsa diki voltage pachiteshi kuti ione simba rinogamuchira kupera mudziyo, inova inonzi voltage pulse sensor. Kana kupikisa kunoshanda kweiyo kukosha kwakatarwa kwaonekwa, mudziyo wakabatana nechiteshi ndiyo chaiyo simba rekugamuchira yekupedzisira mudziyo. Izvo zvinofanirwa kucherechedzwa kuti iyo PoE switch ndeye yakajairwa PoE switch, uye iyo isiri-yakajairwa PoE switch ye single-chip solution haizoite iyi yekuona pasina control chip.

Danho 2: Kurongeka kwePowered Devices (PD). Kana Powered Device (PD) yaonekwa, iyo PoE switch inoiisa mumapoka, inoisa mumapoka, uye inoongorora mashandisirwo emagetsi anodiwa nePD.

Danho rechitatu: Tanga magetsi. Mushure mekunge nhanho yasimbiswa, iyo PoE switch ichapa simba kune inogashira mudziyo kubva kune yakaderera voltage kusvika 48V DC simba rapihwa mukati isingasviki 15μs yekumisikidza nguva.

Danho rechina: Simba pane zvakajairika. Iyo inonyanya kupa yakagadzikana uye yakavimbika 48V DC simba kune inogashira midziyo yekusangana nekushandiswa kwesimba kweiyo inogamuchira yekupedzisira michina.

Danho rechishanu: Bvisa magetsi. Kana chigadziro chekugamuchira simba chikabviswa, simba rekushandisa rinoremerwa, pfupi pfupi inoitika, uye simba rose rekushandisa rinopfuura bhajeti remagetsi rePoE switch, PoE switch inomira kupa simba kune simba rekugamuchira simba mukati me300-400ms, uye ichatangazve magetsi. test. Inogona kudzivirira zvinobudirira mudziyo wekugamuchira simba uye PoE switch kudzivirira kukuvadzwa kwechishandiso.

PoE magetsi ekupa maitiro

Zvinogona kuonekwa kubva pamusoro apa kuti PoE simba rekushandisa rinowanikwa kuburikidza netiweki tambo, uye tambo yetiweki inoumbwa nemakumbo mana epairi akamonyoroka (8 core waya). Naizvozvo, waya sere dzepakati mune network tambo ndeye PoE switch inopa data uye Iyo yepakati yekufambiswa kwemagetsi. Parizvino, iyo PoE switch ichapa iyo yekupedzisira yekugashira mudziyo ine inoenderana DC magetsi kuburikidza matatu ePoE magetsi emagetsi modes: Mode A (End-Span), Mode B (Mid-Span) uye 4-peya.

PoE simba rekupa kureba

Nekuti kutapurirana kwesimba uye masaini etiweki pane network tambo inokanganiswa nyore nekupikisa uye capacitance, zvichikonzera kuderedzwa kwechiratidzo kana kusagadzikana kwemagetsi, kureba kwekutapurirana kwetambo yetiweki kunogumira, uye kureba kwekutapurirana kure kunogona kusvika 100 metres chete. Simba rePoE rinowanikwa kuburikidza netambo yetiweki, saka kureba kwayo kwekufambisa kunokanganiswa netambo yetiweki, uye kureba kwekufambisa kwemamita zana. Nekudaro, kana PoE extender ikashandiswa, iyo PoE yemagetsi renji inogona kuwedzerwa kusvika pahupamhi hwemamita 1219.

Nzira yekugadzirisa sei PoE simba kukundikana?

Kana iyo PoE magetsi yatadza, unogona kugadzirisa kubva pane zvinotevera zvinhu zvina.

Tarisa uone kana mudziyo unogamuchira magetsi unotsigira PoE magetsi. Nekuti haasi ese maturusi etiweki anogona kutsigira PoE magetsi ekupa tekinoroji, zvakare zvinodiwa kuti utarise kana mudziyo unotsigira PoE magetsi ekupa tekinoroji usati wabatanidza mudziyo kuPoE switch. Kunyangwe zvazvo PoE ichizoona kana ichishanda, inogona chete kuona uye kupa simba kune inogashira mudziyo mudziyo unotsigira PoE magetsi ekupa tekinoroji. Kana iyo PoE switch isingapi simba, zvinogona kunge zviri nekuti iyo yekupedzisira yekugamuchira mudziyo haigone kutsigira PoE magetsi emagetsi tekinoroji.

Tarisa kuti simba remuchina wekugamuchira simba rinopfuura simba repamusoro reiyo switch port. Semuenzaniso, PoE switch inongotsigira IEEE 802.3af standard (simba guru rechiteshi chega chega pane switch i15.4W) yakabatana nemagetsi ekugamuchira ane simba re16W kana kupfuura. Panguva ino, simba rinogamuchira kupera Chigadzirwa chacho chinogona kukuvadzwa nekuda kwekukundikana kwesimba kana simba risina kugadzikana, zvichiita kuti PoE iparadze simba.

Tarisa kuti simba rese rezvishandiso zvese zvakabatana zvinodarika bhajeti remagetsi rekuchinja. Kana simba rose rezvishandiso zvakabatana richipfuura bhajeti resimba rekuchinja, iyo PoE magetsi inotadza. Semuenzaniso, 24-port PoE switch ine bhajeti yemagetsi ye370W, kana shanduko inoenderana neIEEE 802.3af chiyero, inogona kubatanidza 24 magetsi ekugamuchira michina inotevera chiyero chakafanana (nekuti simba rerudzi urwu rwechigadzirwa 15.4 W, kubatanidza 24 Simba rose remudziyo rinosvika 369.6W, iyo isingapfuuri bhajeti yemagetsi yekuchinja); kana shanduko inoenderana neIEEE802.3at chiyero, gumi nemaviri chete emagetsi ekugamuchira midziyo anotevera chiyero chakafanana anogona kubatanidzwa (nekuti simba rerudzi urwu rwechigadzirwa 30W, kana switch yakabatana 24 inodarika bhajeti remagetsi, saka chete huwandu hwegumi nembiri hunogona kubatanidzwa).

Tarisa kuti magetsi emagetsi emagetsi emagetsi (PSE) anoenderana here neayo emidziyo yekugamuchira magetsi (PD). Semuenzaniso, PoE switch inoshandisa mode A yekugovera magetsi, asi iyo yakabatana yekugamuchira magetsi mudziyo inogona kungogamuchira kufambisa kwemagetsi mumodhi B, saka haizokwanisi kupa simba.

Pfupisa

PoE magetsi ekupa tekinoroji yave chikamu chakakosha cheshanduko yedhijitari. Kunzwisisa musimboti wePoE magetsi ekupa kunobatsira iwe kuchengetedza PoE switch uye magetsi ekugamuchira michina. Panguva imwecheteyo, kunzwisisa PoE switch yekubatanidza matambudziko uye mhinduro zvinogona kunyatso kudzivirira kuendesa PoE network. kutambisa nguva isingakoshi uye mari.