1. Babban la'akari don zaɓin canza PoE
1. Zaɓi madaidaicin PoE canji
A cikin ginshiƙi na PoE da ya gabata, mun ambata cewa madaidaicin wutar lantarki na PoE na iya gano ta atomatik ko tashar a cikin hanyar sadarwa ita ce na'urar PD wacce ke goyan bayan samar da wutar lantarki ta PoE.
Samfurin da ba daidai ba na PoE shine na'urar samar da wutar lantarki mai ƙarfi irin na kebul na cibiyar sadarwa, wanda ke ba da wutar lantarki da zarar an kunna shi.Sabili da haka, da farko ka tabbata cewa canjin da ka saya shine daidaitaccen madaidaicin PoE, don kada ya ƙone kyamarar gaba.
2. Ƙarfin kayan aiki
Zaɓi maɓallin PoE bisa ga ƙarfin na'urar.Idan ƙarfin kyamarar sa ido bai kai 15W ba, zaku iya zaɓar sauya PoE wanda ke goyan bayan daidaitattun 802.3af;idan ikon na'urar ya fi 15W, to kuna buƙatar zaɓar madaidaicin PoE na 802.3at;idan ikon kamara ya wuce 60W, kuna buƙatar zaɓar 802.3 BT daidaitaccen ƙarfin wutan lantarki, in ba haka ba ikon bai isa ba, kuma ba za a iya kawo kayan aikin gaba ba.
3. Yawan tashoshin jiragen ruwa
A halin yanzu, akwai galibi 8, 12, 16, da 24 akan tashar PoE akan kasuwa.Yadda za a zaɓa ya dogara da lamba da ƙarfin kyamarori masu haɗin gaba-gaba don ƙididdige jimlar lambar wutar lantarki.Ana iya rarraba adadin tashoshin jiragen ruwa tare da iko daban-daban kuma a haɗa su bisa ga jimillar wutar lantarki na sauyawa, kuma an tanada 10% na tashoshin sadarwa.Yi hankali don zaɓar na'urar PoE wacce ƙarfin fitarwa ya fi ƙarfin na'urar gabaɗaya.
Baya ga biyan bukatun wutar lantarki, tashar ya kamata kuma ta dace da nisan sadarwa, musamman abubuwan da ake bukata na nesa mai tsayi (kamar fiye da mita 100).Kuma yana da ayyukan kariya na walƙiya, kariya ta lantarki, hana tsangwama, kariya ga bayanan tsaro, rigakafin yaduwar ƙwayoyin cuta da hare-haren hanyar sadarwa.
Zaɓi da daidaitawa na masu sauya PoE
PoE yana sauyawa tare da lambobi daban-daban na tashar jiragen ruwa
4. Tashar tashar jiragen ruwa
Tashar tashar jiragen ruwa shine ainihin alamar fasaha na sauyawa, yana nuna aikin haɗin cibiyar sadarwa na sauyawa.Sauyawa galibi suna da bandwidth masu zuwa: 10Mbit/s, 100Mbit/s, 1000Mbit/s, 10Gbit/s, da sauransu. Lokacin zabar maɓalli na PoE, ya zama dole a fara kimanta zirga-zirgar kyamarori da yawa.Lokacin yin lissafi, yakamata a sami gefe.Misali, canjin 1000M ba za a iya ƙididdige shi ba.Gabaɗaya, ƙimar amfani shine kusan 60%, wanda shine kusan 600M..
Dubi rafi guda ɗaya bisa ga kyamarar cibiyar sadarwar da kuke amfani da ita, sannan ku ƙididdige kyamarori nawa za a iya haɗa su zuwa maɓalli.
Misali, rafin lamba ɗaya na kyamarar 1.3-pixel 960P yawanci shine 4M,
Idan kuna amfani da maɓalli na 100M, kuna iya haɗa saiti 15 (15×4=60M);
Tare da canjin Gigabit, ana iya haɗa raka'a 150 (150×4=600M).
Kyamarar 2-megapixel 1080P yawanci tana da rafi ɗaya na 8M.
Tare da sauyawa 100M, zaku iya haɗa saiti 7 (7 × 8 = 56M);
Tare da canjin gigabit, ana iya haɗa saiti 75 (75×8=600M).
5.Bayani na baya
Bandiwidwidwidit na baya yana nufin iyakar adadin bayanai da za'a iya sarrafa su tsakanin na'ura mai sarrafa motsi ko katin dubawa da bas ɗin bayanai.
Ƙwararren bandwidth na baya yana ƙayyade ikon sarrafa bayanai na sauyawa.Mafi girman bandwidth na baya baya, ƙarfin ikon sarrafa bayanai da sauri saurin musayar bayanai;in ba haka ba, a hankali saurin musayar bayanai.Ƙididdigar ƙididdiga na bandwidth na baya shine kamar haka: bandwidth na baya = adadin tashar jiragen ruwa × ƙimar tashar jiragen ruwa × 2.
Misalin lissafi: Idan maɓalli yana da tashar jiragen ruwa 24, kuma gudun kowane tashar jiragen ruwa gigabit ne, to bandwidth na baya=24*1000*2/1000=48Gbps.
6. Yawan tura fakiti
Bayanan da ke cikin hanyar sadarwa sun ƙunshi fakitin bayanai, kuma sarrafa kowane fakitin bayanai yana cinye albarkatu.Adadin turawa (wanda kuma ake kira fitarwa) yana nufin adadin fakitin bayanan da ke wucewa ta kowace raka'a na lokaci ba tare da asarar fakiti ba.Idan abin da ake fitarwa ya yi ƙanƙanta, zai zama ƙwanƙolin hanyar sadarwa kuma yana yin mummunan tasiri ga ingancin watsa duk hanyar sadarwar.
Dabarar ƙimar isar da fakitin ita ce kamar haka: Fitarwa (Mpps) = Adadin tashoshin Gigabit 10 × 14.88 Mpps + Adadin tashoshin Gigabit × 1.488 Mpps + Adadin tashoshin Gigabit 100 × 0.1488 Mpps.
Idan abin da aka ƙididdige shi bai kai abin da ake amfani da shi ba, za a iya samun saurin sauyawar waya, wato, saurin sauyawar ya kai ga saurin isar da bayanai a kan layin watsawa, ta yadda za a kawar da ƙugiya mai saurin canzawa zuwa mafi girma.
Lokacin aikawa: Juni-09-2022