Vamwe vatengi vakabvunza, pane maPOE switch pamusika anoti anogona kufambisa 150 metres kana 250 metres, ichokwadi here kana kuti nhema?

Chokutanga pane zvose, tinofanira kunzwisisa kuti POE chii.POE ndiyo chidimbu chePower over Ethernet, zvinoreva kuti pasina shanduko kune iripo Ethernet Cat.5 cabling infrastructure, inogona kushandiswa kune dzimwe IP-based terminals (senge IP phones).Iyo tekinoroji inogona kupa simba reDC kumidziyo yakadaro uchitumira masaini edatha, akadai seasina waya LAN yekuwana nzvimbo, APs, uye network makamera, inochinja inotsigira Simba pamusoro peEthernet.

Iyo Ethernet mwero inotaura kuti kureba kwekufambisa kureba i100 metres, uye kunonoka kwedata uye kurasikirwa kwepaketi kunogona kuitika kana chinhambwe chichipfuura zana metres.
Asi hadzisi dzese tambo dzenetiweki dzinogumira kumamita zana.Mukushanda chaiko, tambo yetiweki inogonawo kutumira zvinobudirira kupfuura mamita zana, uye hutano hunogona kusvika anenge mamita 120, kureva, oksijeni-isina mhangura Cat.5 network cable, kana chikwata 6 network cable.

Vazhinji vagadziri vePoE vave kuparura 150-mita, kureba, 250-mita simba rekupa, uye kunyange 500-mita yekufambisa kureba kwePOE switch.Hazvireve here kuti kureba kwekufambisa kweyakajairwa POE switches i100 metres, uye zvakanakisa kudzora chinhambwe mukati me80 metres mukushandisa chaiko.Chii chiri kunetsa?

Isu tese tinoziva kuti PoE simba rekupa chinhambwe chinotemerwa nehurefu hwekufambisa kwechiratidzo chedata.Magetsi akachena anogona kufambiswa kure kure, asi kureba kwekufambisa kwechiratidzo che data kunotarwa netambo yetiweki.Iyo yekutapurirana chinhambwe cheyakajairwa chikamu 5 tambo data chiratidzo chinenge 100 metres.Kuti uve nechokwadi chemhando yekuvaka, inowanzoita 80-90 metres.Ndokumbira utarise kuti chinhambwe chekufambisa pano chinoreva chiyero chepamusoro, senge 100M.
Vagadziri vazhinji vakamaka kuti kureba kwekufambisa kwePOE switch yavo kunogona kusvika 150 metres, asi mumashandisirwo chaiwo, kana akajairwa POE switch ichida kuwana kureba kwemamita zana nemakumi mashanu, vane zvinodiwa zvakasimba pamhando yetambo yetiweki.Vanofanira kushandisa zvinopfuura chikamu 6 tambo, izvo zvinowedzera Kunyange zvakadaro, kana dunhu remukati rePOE switch rinotora yakajairika network switching chip uye POE simba rekupa manejimendi chip, hazvibviri kusvika kune network ye100M uye kureba kwekufambisa. yemamita 150, kunyangwe tambo yemhando yepamusoro yetiweki ikashandiswa.Ichawedzera kushandiswa kwesimba, kudarika simba rekushandisa kwePoE simba rekupa, uye kuve isina kugadzikana, iine madonhwe akakomba epaketi, bandwidth yakakomba yekufambisa uye kuderedzwa kwechiratidzo, zvichikonzera kusagadzikana kwechiratidzo, kuchembera kwePoE switch michina, uye kuomerwa mukugadzirisa kunotevera. .

Kunyangwe iyo yepamusoro-inoshanda POE switch ine 100M yakazara mutoro uye yakagadzikana kutapurirana inogona chete kusvika 150 metres.Ndeipi nzvimbo yekufambisa yemamita 250?Chokwadi, pane nzira.Kana iyo chiyero ichideredzwa kusvika ku10M, ndiko kuti, bandwidth yekufambisa ndeye 10M, kureba kwekufambisa kwakanaka.Kuwedzera kusvika ku 250 mamita (zvichienderana nehutano hwetambo yetiweki), iyi teknolojia haina kupa hupamhi hwepamusoro.Iyo bandwidth inomanikidzwa kubva ku100M kusvika 10M, iyo isiri nyore kune yakatsetseka kufambisa kwepamusoro-tsanangudzo yekutarisa mifananidzo.
Vazhinji vagadziri, pavanenge vachisimudzira zvigadzirwa zvavo kutsigira 250-mita kutapurirana, havataure kudonha kune 10M bandwidth, uye vanofungidzirwa kuvanza nemaune bandwidth kubva kune vatengi.

Zvakare, hadzisi dzese POE switch dzinogona kufambisa nyore 250 metres chero bandwidth yakaderedzwa kusvika 10M.Izvi zvinoenderanawo nehutano hwekuchinja.Kana iyo yemukati switching chip kuchinjika kweiyo switch yakashata zvakanyanya uye simba chip manejimendi kugona haina kusimba, kunyangwe kana 10M ichimanikidzwa Transmission, zvakare haigone kuvimbisa kugadzikana kwekutapurirana kwemamita mazana maviri nemakumi mashanu, kunyangwe 150 metres haigone kusvika.

Naizvozvo, muchirevo, kuti uwane kutapurirana kwemamita mazana maviri nemakumi mashanu, zvinodikanwa kutora dhizaini-yepamusoro-simba yePOE, uye iyo POE simba chip inotora kunze emhando yepamusoro maindasitiri-giredhi machipisi.Iyo magetsi manejimendi module inogona nehungwaru uye otomatiki kuziva iyo IEEE802.3af/pachiyero, inogadzirisa otomatiki simba, uye kushandisa 8 cores panguva imwe chete.Intelligent magetsi emagetsi tekinoroji, kuita basa rakadaro, uchishandisa yakavakirwa-mukati magetsi, mukana wekushandisa yakavakirwa-mukati magetsi ekuti inokwanisa kukwenenzvera chaiyo dhizaini, inoyera otomatiki kudiwa kwemagetsi kwekupedzisira kwekugamuchira uye tambo yekufambisa impedance uye. mamwe maparameter, ayo anoongororwa uye akaverengerwa neakangwara simba manejimendi module uye yakabudiswa Raira mukati mukati memagetsi emagetsi emagetsi kugadzirisa linear voltage input kuti ienderane neiyo otomatiki magetsi inobuda kune yekupedzisira-powered midziyo.