Inqaku sathetha ngeenguqu ezintsha zeZyxel ezenzelwe ukwakha iinkqubo zokujonga iividiyo kunye namanye amacandelo eziseko ze-IT usebenzisa amandla nge-PoE.
Nangona kunjalo, ukuthenga nje iswitshi elungileyo kunye nokudibanisa izixhobo ezifanelekileyo akuyona yonke into. Eyona nto inika umdla inokuvela emva kwexeshana, xa le fama kuya kufuneka inikwe inkonzo. Ngamanye amaxesha kukho imigibe ekhethekileyo, ubukho omele uyazi.
Isibini esijijekileyo sobhedu
Kwimithombo eyahlukeneyo yolwazi ngokusetyenziswa kwePoE, unokufumana ibinzana elithi “Sebenzisa iintambo zobhedu kuphela.” Okanye “Ungasebenzisi iperi ejijekileyo yeCCA”. Zithetha ntoni ezi zilumkiso?
Kukho ingcamango ephosakeleyo esekwe kakuhle yokuba ucingo olujijekileyo luhlala lwenziwa ngocingo lobhedu. Kuvela ukuba ayisoloko. Kwezinye iimeko, ukuze kugcinwe imali, umenzi usebenzisa into ebizwa ngokuba yi-copper-plated cable.
Ngokusisiseko yintambo ye-aluminiyam enee-conductor zayo ziqatywe ngomaleko obhityileyo wobhedu. Igama elipheleleyo: ipere ejijekileyo ye-aluminiyam yobhedu
Iperi ejijekileyo yezikhonduki zobhedu eziqinileyo ziphawulwe njenge "Cu" (isuka kwiLatin "cuprum"
I-aluminiyam ehlanganiswe ngobhedu ityunjwe "CCA" (i-Copper Coated Aluminium).
Abavelisi be-CCA basenokungayilebhile konke konke. Ngamanye amaxesha nabavelisi abanganyanisekanga bazoba "Cu" ipharamitha kwisibini esijijekileyo esenziwe nge-aluminium yobhedu.
Phawula. Ngokutsho kweGOST, ukumakishwa okunjalo akufuneki.
Ukuphela kwengxabano engenakuphikiswa exhasa ikhebula le-copper-clad lixabiso layo eliphantsi.
Enye ingxoxo engabalulekanga kangako bubunzima obuncinci. Kukholelwa ukuba i-aluminium cable spools kulula ukuhamba ngexesha lofakelo kuba ubunzima obuthile be-aluminium bungaphantsi kobhedu.
Phawula. Enyanisweni, akusiyo yonke into elula kakhulu. Ubunzima bepakethe, ubunzima bokugquma, ukufumaneka kweendlela ezikhoyo zokusebenzisa oomatshini, kunye nezinye izinto ezidlala indima. Ukuzisa iibhokisi ze-5-6 ngeekhoyili zekhebula le-CCA kwinqwelo kunye nokuphakamisa kwi-elevator kuthatha ixesha elifanayo kunye nomgudu kunye nenani leebhokisi ezineekhoyili "zethusi elipheleleyo".
Indlela yokuqaphela ngokuchanekileyo intambo ye-aluminium
I-aluminiyam ene-Copper-clad ayisoloko kulula ukuyiqonda. Iingcebiso ezinje: “Krwela umphezulu wocingo okanye uqikelele ubunzima bekhoyili yentambo ngokuyiphakamisa esandleni sakho” - zisebenza kakhulu.
Olona vavanyo lufikelelekayo kunye nolukhawulezayo: setha isiphelo esichithiweyo socingo emlilweni, umzekelo, nge-lighter. I-Aluminiyam iqala ukutshisa kunye nokudilika ngokukhawuleza, ngelixa isiphelo somqhubi wobhedu ococekileyo unokutshisa-bomvu, kodwa igcina imilo yayo kwaye, xa ipholile, ibuyisela iimpawu zomzimba, umzekelo, ukuqina.
Uthuli olushiywe ekutshiseni i-aluminium yobhedu, ngokomgaqo, yintoni intambo "yezoqoqosho" enjalo ijika ibe yithuba elide. Onke amabali othusayo e-sysadmin malunga "nokuwa kweentambo" malunga "nobhedu."
Phawula. Unokuhluba ucingo lwe-insulation kwaye ulinganise, ubala ubunzima obuthile. Kodwa ekusebenzeni le ndlela ayifane isetyenziswe. Udinga izikali ezichanekileyo ezifakwe kwindawo ethe tye, ethe tyaba, kunye nexesha elisimahla lokwenza oku.
Itheyibhile 1. Ukuthelekiswa kobunzima obuthile bobhedu kunye ne-aluminium.
Abahlobo bethu abavela kwi-NeoNate, ngendlela eyenza intambo entle kakhulu, benze oku ukukunceda.
Ukulahlekelwa kwamandla ngexesha lokudluliselwa
Makhe sithelekise ukuxhathisa:
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ukumelana nobhedu - 0 ohm * mm0175 / m;
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Ukumelana neAluminiyam - 0 ohm * mm0294/m/
Ukuchasana ngokupheleleyo kwentambo enjalo kubalwa ngefomula:
Ukuqwalasela ukuba ubukhulu bengubo yobhedu kwi-cable ye-copper-plated cable "iya ku-zero," sifumana ukuxhathisa okukhulu ngenxa ye-aluminium.
Kuthekani ngempembelelo yolusu?
Isiphumo solusu sithiywe kwigama lesiNgesi elithi ulusu. "isikhumba".
Xa uhambisa isignali ye-high-frequency, umphumo ubonwa apho umbane wombane uhanjiswa ngokuyinhloko kunye nomphezulu wekhebula. Lo mcimbi usebenza njengengxoxo apho abavelisi beentambo ezijijekileyo ezinexabiso eliphantsi bazama ukuthethelela ukongiwa kwe-aluminiyam egqunywe ngobhedu, besithi, “umsinga usahamba phezu komhlaba.”
Ngapha koko, isiphumo solusu yinkqubo yomzimba entsonkothileyo. Ukutsho ukuba nakweyiphi na i-copper-bonded twisted pair signal transmissions iya kuhlala ihamba ngokungqongqo kwi-copper surface, ngaphandle "kokubambisa" i-aluminium layer, ayikho inkcazo efanelekileyo ngokupheleleyo.
Ukubeka nje, ngaphandle kokuba nesifundo sebhubhoratri kulo mzekelo wocingo, akunakwenzeka ukuthetha ngokuthembekileyo ukuba le ntambo yeCCA, ngenxa yempembelelo yesikhumba, idlulisela iimpawu ezingekho mbi ngaphezu kwentambo yobhedu ephezulu.
Amandla amancinci
Ucingo lwe-aluminiyam luphuka lula kwaye lukhawuleza kunocingo lobhedu olunobukhulu obufanayo. Noko ke, “ukuyithabatha uyiqhekeze” akuyongxaki inkulu. Inkathazo enkulu kakhulu yi-microcracks kwintambo, eyandisa ukuxhathisa kwaye inokukhokelela kwisiphumo sokuthomalalisa umqondiso odadayo. Umzekelo, xa intambo iphantsi kokugoba okanye ubushushu buchaphazela amaxesha ngamaxesha. I-Aluminiyam ibaluleke kakhulu kolu hlobo lwempembelelo.
Okubalulekileyo kutshintsho lobushushu
Yonke imizimba yenyama inamandla okutshintsha umthamo phantsi kweempembelelo
ubushushu. Ngama-coefficients ahlukeneyo okwandisa, ezi zinyithi ziya kutshintsha ngokwahlukileyo.
Oku kunokuchaphazela zombini ingqibelelo ye-plating yobhedu kunye
umgangatho wabafowunelwa kwiindawo zokudityaniswa kwabaqhubi be-aluminium kunye nezixhobo
fastenings Ukukwazi kweAluminiyam ukwandisa ngakumbi njengoko ubushushu bukhula
ikhuthaza ukubonakala kwee-microcracks eziphazamisa umbane
iimpawu kunye nokunciphisa amandla ekhebula.
Ukukwazi kweAluminiyam kwi-oxidize ngokukhawuleza
Ukongeza kokwandiswa kwe-thermal, kufuneka uthathele ingqalelo ipropati ye-aluminium ukuze i-oxidize ngokukhawuleza, njengoko kubonakaliswe ngovavanyo olulula.
Kodwa nangona ucingo lwe-aluminiyam aluvezwanga kwidangatye elivulekileyo kunye nezifudumezi zobushushu obuphezulu bangaphandle, ngokuhamba kwexesha, ngenxa yokutshintsha kweqondo lobushushu okanye ukufudumeza ngenxa yokudluliselwa kombane kwizixhobo zamandla (PoE), iiathom zentsimbi ezininzi zidibana neoksijini. . Oku akuphuculi iimpawu zombane zentambo konke konke.
Ukuqhagamshelana ne-aluminiyam kunye nezinye iintsimbi ezingenayo i-ferrous
I-aluminium ayikhuthazwa ukuba idibaniswe kwii-conductors ezenziwe kwezinye izinyithi ezingenayo i-ferrous, ngokukodwa ubhedu kunye ne-alloys equkethe ubhedu. Isizathu kukunyuka kwe-oxidation ye-aluminium kumalungu.
Ngokuhamba kwexesha, iziqhagamshelo ziya kufuneka zitshintshwe, kwaye ii-conductors kwi-patch panel kufuneka zenziwe kwakhona. Akumnandi ukuba iimpazamo ezidadayo zinokunxulunyaniswa noku.
Iingxaki nge-PoE ye-copper-bonded twisted pair
Kwimeko ye-PoE, umbane okhoyo kwizixhobo zombane uhanjiswa ngokuyinxenye ngokusebenzisa i-copper coating, kodwa ngokukodwa ngokuzaliswa kwe-aluminium, oko kukuthi, ngokuchasana okuphezulu kwaye, ngokufanelekileyo, kunye nokulahlekelwa kwamandla aphezulu.
Ukongezelela, ezinye iingxaki zivela: ngenxa yokufudumeza iingcingo xa uhambisa amandla akhoyo, apho le sibini esijijekileyo asizange siyilwe; ngenxa ye-microcracks, i-oxidation yocingo, njalo njalo.
Yintoni enokuyenza ukuba i-SCS enentambo eyenziwe nge-aluminium yobhedu "yayizuzwa njengefa"?
Kufuneka ukhumbule ukuba ezinye izahlulo ziya kufuneka zitshintshwe ekuhambeni kwexesha (ngesizathu esinye okanye esinye). Kungcono ukugcina imali ngokukhawuleza kwibhajethi yale meko. (Ndiyaqonda ukuba kuvakala ngathi yintsomi yesayensi, kodwa yintoni enye onokuyenza?)
Ukubeka iliso kwimeko ye-SCS. Beka iliso kwiqondo lobushushu, ukufuma kunye nezinye iimpawu ezibonakalayo kumagumbi kunye nezinye iindawo apho iintambo ezimbini ezijijekileyo zidlulayo. Ukuba kushushu, kubanda, kunomswakama, okanye kukho ukukrokra koxinzelelo lwemishini, njengokungcangcazela, kuyafaneleka ukuqwalasela amanyathelo okuthintela. Ngokomgaqo, kwimeko enesibini esijijekileyo sobhedu, olo lawulo aluyi kulimaza, kodwa iingcingo ze-aluminiyam zinamandla ngakumbi kwezi ziganeko.
Kukho uluvo lokuba akusekho nto ingako ekuthengeni naziphi na iiphaneli ezifanelekileyo, iisokethi zenethiwekhi, iintambo zokuqhagamshela abasebenzisi kunye nezinye izixhobo ezisebenzayo. Ekubeni inxalenye enentambo, masithi, "ayingomthombo," ukuchitha imali kwi "kit body" epholileyo isenokungasafaneleki.
Kwelinye icala, ukuba ngokuhamba kwexesha usafuna ukubuyisela isibini esijijekileyo “esingenantlukwano” i-CCA “enobhedu” oluvavanywe ixesha - ngaba kufanelekile ukulandela umgaqo othi "inyathelo elinye ukuya phambili, amanyathelo amabini umva", indawo yokuthenga iipaneli kunye neesokethi ngoku ngexabiso lentengo?
Kananjalo kufuneka ulumke kakhulu malunga nokulahleka konxibelelwano ngequbuliso. Xa kwakungasekho nepeni kangangexesha elithile, yaye ngoxa babekhangele, “yonke into ngokungummangaliso” yabuyiselwa. Umgangatho wekhebula kunye nokudibanisa kunokudlala indima ebalulekileyo kwiziganeko ezinjalo.
Ukuba uceba ukusebenzisa i-PoE, umzekelo, kwiikhamera zokujonga ividiyo, kule ndawo kungcono ukubuyisela ngokukhawuleza isibini esijijekileyo ngobhedu. Ngaphandle koko, unokuhlangabezana nemeko apho uqale wafaka ikhamera esebenzisa amandla aphantsi, emva koko wayitshintshela kwenye kwaye kuya kufuneka uxakeke malunga nokuba kutheni ingasebenzi.
I-5E ilungile, kodwa udidi lwesi-6 lungcono!
Udidi lwe-6 luxhathisa ngakumbi ukuphazamiseka kunye neempembelelo zeqondo lokushisa; ii-conductors kwiintambo ezinjalo zijijelwe ngeepitshi ezincinci, eziphucula iimpawu zombane. Kwezinye iimeko kwikati. I-6, i-separators ifakwe ukuba ihlukanise izibini (umgama ukusuka komnye nomnye ukwenzela ukukhusela impembelelo efanayo). Konke oku kwandisa ukuthembeka ngexesha lokusebenza.
Ukudibanisa izixhobo kunye ne-PoE, olo tshintsho luya kulungeleka, umzekelo, ukuqinisekisa ukusebenza okuzinzile kwenethiwekhi ngexesha lokutshintsha kweqondo lokushisa.
Iintambo ze-SCS ngamanye amaxesha zibekwe kumagumbi anolawulo olubi lwemozulu, umzekelo, ngaphaya kwendawo yesilingi, kumgangatho ongaphantsi, umgangatho wobugcisa okanye ophantsi, apho umahluko wobushushu emini ufikelela kuma-25°C. Ukutshintsha kweqondo lokushisa okunjalo kuchaphazela iimpawu zentambo.
Ukubeka i-cable ebiza kakhulu, kodwa kunye neCandelo le-6 elithembekileyo kunye neempawu ezingcono endaweni yeCandelo le-5E ayikho ukwanda "kwi-overhead", kodwa utyalo-mali kunxibelelwano olungcono noluthembekileyo.
Iofisi yaseRashiya emele iZyxel iqhube isifundo sayo sokuxhomekeka komgama ovumelekileyo wokuhanjiswa kwamandla e-PoE kuhlobo lwekhebula elisetyenzisiweyo. Utshintsho lusetyenziselwe ukuvavanya
Umzobo 1. Ukubonakala kokutshintsha kwe-GS1350-6HP.
Umzobo 2. Ukubonakala kokutshintsha kwe-GS1350-18HP.
Ukuze kube lula, iziphumo zishwankathelwa kwitheyibhile, yahlulwe ngumenzi wekhamera yevidiyo (jonga iiThebhile 2-8 ngezantsi).
Itheyibhile 2. Inkqubo yovavanyo
Inkqubo yoVavanyo
inyathelo
inkcazelo
1
Vumela uluhlu olwandisiweyo kwizibuko 1,2
-GS1300: DIP tshintshela kwi-ON kwaye ucinezele ukuseta kwakhona & ukusebenzisa iqhosha kwipaneli yangaphambili
-GS1350: Ngena kwiWeb GUI> Yiya ku "Port Setup"> vumela uluhlu olwandisiweyo kwaye usebenzise.
2
Qhagamshela iPC okanye iLaptop kwiswitshi ukuze ufikelele kwikhamera
3
Xhuma i-Cat-5e ye-250m ikhebula kwi-Port 1 kwaye udibanise ikhamera ukuze unike amandla.
4
Sebenzisa i-PC/Laptop kwi-PING ikhamera ye-IP, akufanele ibone ukulahleka kwe-ping.
5
Fikelela kwikhamera kwaye ujonge ukuba umgangatho wevidiyo ulungile kwaye ugudile.
6
Ukuba inyathelo#4 okanye 5 aliphumelelanga, tshintsha intambo ukuya kwiCat-6 250m kwaye uvavanye kwakhona kwinyathelo#3.
7
Ukuba inyathelo#4 okanye 5 aliphumelelanga, tshintsha intambo ukuya kwiCat-5e 200m kwaye uvavanye kwakhona kwinyathelo#3.
Uluhlu 3. Iimpawu zokuthelekisa iintambo zokuqhagamshela iikhamera ze-LTV
Uluhlu 4. Iimpawu zokuthelekisa iintambo zokuqhagamshela iikhamera ze-LTV (iyaqhutywa)
Itheyibhile 5. Iimpawu zokuthelekisa iintambo zokudibanisa iikhamera ze-LTV (ziqhubeka 2).
Itheyibhile 6. Iimpawu zokuthelekisa iintambo zokudibanisa iikhamera ze-UNIVIEW.
Itheyibhile 7. Iimpawu zokuthelekisa iintambo zokudibanisa iikhamera ze-UNIVIEW (ziyaqhubeka).
Itheyibhile 8. Iimpawu zokuthelekisa iintambo zokudibanisa iikhamera zeVivotek.
isiphelo
Iingxaki ezichazwe kwinqaku azidingeki ukuba zithengwe. Mhlawumbi kuya kubakho umntu oya kuthi: "Kwiiprojekthi zam ndihlala ndisebenzisa i-copper-plated twisted pair cable yodidi lwe-5E ngamaxesha onke kwaye andazi naziphi na iingxaki." Ngokuqinisekileyo, umgangatho womsebenzi, iimeko zokusebenza, ukubeka iliso ngamaxesha kunye nokugcinwa kwangexesha kudlala indima enkulu. Nangona kunjalo, kusekho imfuneko yokusebenzisa i-PoE, kwaye kwimeko enjalo, ukusebenzisa i-Category 6 i-twisted pair copper sisisombululo esithembisayo.
Ugcino olunokubakho xa usebenzisa iintambo ezijijekileyo eziphothiweyo zobhedu zithe ngqo. Ukuba sithetha ngeeprojekthi ezinkulu ze-Enterprise-level kumashishini abalulekileyo e-IT, kububulumko ukusebenzisa izibini zobhedu ezikumgangatho ophezulu ezivela kubavelisi abaqinisekisiweyo, abaqinisekisiweyo. Ukuba sithetha ngamanethiwekhi amancinci, ngoko ukugcina kwi-twisted pair cable, ngakumbi kwiimeko "zolawulo oluzayo", kubonakala ngathi kuyathandabuza. Ngamanye amaxesha kungcono ukuhlawula ngakumbi ikhebula elisemgangathweni ukuphelisa iingxaki ezinokuthi zibe khona, ukuphucula ukuthembeka, ukwandisa uluhlu lwezakhono (PoE) kunye nokunciphisa iindleko zokugcinwa.
Sibulela oogxa bethu kwinkampani uncedo ekudaleni imathiriyeli.
Siyakumema wethu kwaye kuqhubeke . Inkxaso, iingcebiso malunga nokukhetha izixhobo kunye nokunxibelelana nje phakathi kweengcali. Wamkelekile!
Unomdla wokuba liqabane leZyxel? Qala ngokubhalisa kwi yethu .
Imithombo
umthombo: www.habr.com