Wani abokina ya tambayi ko za ka iya amfani da layin waya don haɗa POE ko amfani da cores huɗu na wayar sadarwar don yin crystal head, abokai da yawa sun ruɗe shine hanyar sadarwa ta 1236 da 4578 wacce wutar lantarki? Mun kuma aiko da irin wannan labarin akan wannan tambaya, a yau mun sake dawowa don samun cikakkiyar fahimta.
1. Wanda daidai yake watsa bayanai kuma wanda ke ba da wuta
Matsakaicin madaidaicin mawaƙa suna da ma'auni guda biyu, 802.11af da 802.11at, kuma duka madaidaicin madaidaicin mawaƙa suna goyan bayan halaye biyu:
① 1236 yana ɗaukar duka bayanai da wutar lantarki;
② 1236 go data, 4578 wutar lantarki;
2. Wace irin hanyar samar da wutar lantarki ake amfani da ita a zahiri
Wani yanayin samar da wutar lantarki da ake amfani da shi a zahiri ya dogara daCanjin POE, waɗanda duka sun dace da kyamarorinmu masu kunna POE. Mawaƙin zai yi hukunci da shi da halin da ake ciki.
Saboda 1,2,3, da 6 hudu da megabytes 100 na sadarwa ke amfani da shi, megabytes na sadarwa na gigabit yana amfani da dukkanin cores 8. don haka:
1. Domin 100 tiriliyan PoE canza: kawai 1,2,3,6 waya core haɗa, duka bayanai da kuma samar da wutar lantarki; Tabbas, idan kuna son bayanan 1236, samar da wutar lantarki 4578, sannan waya cores 8, kuma ku tabbatar da cores 8 duk an haɗa su.
2. Don Gigabit PoE canzawa: iyakance ta hanyar buƙatar watsa bayanai, komai ta wannan hanyar, duk wayoyi na cibiyar sadarwa 8-core suna buƙatar haɗawa sosai.
3. Menene ma'auni guda biyu na aCanjin POE
Ƙarfin wutar lantarki na IEEE802.3af shine 15.4W, idan ƙarfin kyamarar 10W, za a iya amfani da wutar lantarki na 802.af;
IEEE802.3at ikon samar da wutar lantarki shine 30W, idan ƙarfin kyamarar 20W, 802.3at POE canza ya kamata a yi amfani da shi;
802.3at yana dacewa da ƙasa, don haka kyamarorin da aka kunna 802.3af ana iya kunna su ta 802.3af ko a masu sauyawa;
802.3at-enabled kyamarori ana yin su ne kawai ta 802.3at switches;
Don wasu kayan aiki masu ƙarfi na gaba-gaba, irin su injin ƙwallon ƙafa, ikon fitarwa ba zai iya cika buƙatun ba, ba zai iya zama P da POE ba.
Misali, ikon wasu na'urori na ball shine 40W, kuma matsakaicin ikon PoE guda ɗaya bai wuce 30W ba, don haka ikon tashar tashar jiragen ruwa ɗaya ba zai iya cika ba, don haka ana buƙatar ƙirar POE na injin ƙwallon ƙwallon. Na ga daidai lokacin da na saya.
4. Yaya nisan wadatar POE?
Don nisan samar da wutar lantarki, an sami rauni da yawa na ƙungiyar fasahar fasahar VIP na yanzu suna tattaunawa akan ko zai iya samar da wutar lantarkin ta wuce mita 100? Hakika wannan matsala ta shafi abubuwa da yawa, wasu abokai fiye da mita 100 na wutar lantarki ba su da wani tasiri, amma wasu daga cikin mita 90 na wutar lantarki sun kasance marasa kwanciyar hankali, wanda za mu tattauna tare.
Dole ne ku ga 200m, 250 m, 300m PoE kayan wutan lantarki da aka tallata akan Moments ko kan layi. Za a yi shakka: nisan watsa kebul na cibiyar sadarwa ba mita 100 ba? Wane layi za a iya amfani da shi don cimma nisa na farfaganda?
Fiye da mita 100 na watsa nisa dole ne ya zama fiye da nau'i 5, kuma shine 8 core cibiyar sadarwa waya. A lokaci guda, maɓalli na waƙa yana aiki da sel guda 8, kuma dole ne a kunna kyamarar ta sel guda 8. Mahimmin mahimmin abu shine cewa kayan aiki na PoE yana goyan bayan yanayin tsawo na cibiyar sadarwa. Bayan kunnawa, lokacin amfani da watsa bayanai da kebul na cibiyar sadarwa na sama, nisan samar da wutar lantarki na tashar tashar jiragen ruwa na iya kaiwa sama da mita 100. Don sauya waƙa na yau da kullun, muna ba da shawarar cewa ya fi dacewa a cikin mita 100.
Me yasa aka ba da shawarar yin amfani da shi a cikin mita 100?
Bari mu dubi juriya na wayoyi na cibiyar sadarwa daban-daban.
Bishiyar 100 Mita na nau'ikan abubuwa daban-daban:
1. Wayar hanyar sadarwa ta ƙarfe mai ƙarfe mai ƙarfe: 75-100 Ω
2. Tagulla-sanyi aluminum raga waya: 24-28 Ω
3. Copper kunshin azurfa cibiyar sadarwa na USB: 15 Ω
4. Kebul na cibiyar sadarwar jan karfe mai rufi: 42 Ω
5. Anaerobic jan ragamar waya: 9.5 Ω
Mafi guntu nisa, ƙarami da juriya, inda anaerobic cibiyar sadarwar waya juriya ce mafi ƙanƙanta, don haka amfani da shi don samar da mafi kwanciyar hankali, juriya na mita 100 kawai 9.5 Ω, menene idan amfani shine mita 50? Sannan juriyarsa shine rabin 9.5 Ω, ƙarami asarar samar da wutar lantarki (asarar dabarar wutar lantarki, Q=I²Rt, asarar wutar ta yi daidai da juriya), sannan mafi ƙarancin wutar lantarki. Don haka fiye da mita 100 na watsa nisa, tabbatar da amfani da kebul na cibiyar sadarwa mai kyau.
Lokacin aikawa: Nov-02-2022