Kowane mai haɗin gani yana da ferrule — ɓangaren da aka ƙera da cikakken daidaito wanda ke riƙe fiber ɗin a wurinsa kuma yana daidaita shi da mai haɗin da ake haɗa shi da shi. A kan takarda, suna kama da iri ɗaya, kuma za a iya ɗaukar su kamar kayan masarufi na yau da kullum. Amma kamar yawancin abubuwa a fiber na gani, inganci yana da muhimmanci. ‘Yan microns na kuskuren daidaiton tsakiya (concentricity), sauyin diamita na rami, ko rashin cikakken zagaye (ovality) na iya karkatar da tsakiyar fiber ɗin har ya haifar da asarar shigarwa da za a iya aunawa.
Ƙarancin kasafin asarar ku, ƙarin muhimmancin ingancin mai haɗi. A cikin cibiyoyin sadarwa na zamani, iyakokin sun riga sun matse sosai. 10GBase-SR yana buƙatar iyakar asarar tashoshi na 2.9dB, yayin da iyakar 40GBase-SR4 shine 1.5dB. Lokacin da kuka ƙara asarar fiber akan tsayin ku, babu wuri ga inganci mai shakku.
A cikin cikakkiyar duniya, tsakiyoyin fiber (cores) za su daidaita daidai kowane lokaci. Amma a zahiri, koyaushe akwai sasantawa. Ferrule wani yanki ne mai sauƙi amma mai ban al’ajabi na aikin injiniya, tare da abubuwa da yawa waɗanda ke tasiri aiki. Diamita na ramin ferrule (bore) shine na farko a cikinsu. Idan ya matse sosai, yana da wahala a saka fiber yayin kera, kuma yana shafar aiki yayin sauye-sauyen zafin jiki. Idan ya yi sako-sako da yawa, fiber yana da sarari don motsawa a cikin ramin. Daidaiton tsakiyar ramin (concentricity) dangane da diamita na waje na ferrule shi ma yana da matuƙar muhimmanci. Idan karkacewar ta yi girma sosai, daidaitawar fiber ɗin za ta lalace. Waɗannan suna nuna mahimmancin zaɓin ferrule daidai azaman dandamali na tushe don aikin da kuke buƙata.
Bayan ferrule, aikin goge-goge yana da tasiri mai yawa. Hanyar goge-goge tana shafar siffar (geometry) ƙarshen ferrule. Radius na lanƙwasa, karkacewar koli (apex offset), fitowa ko lotsewa (protrusion/undercut), da ƙaƙƙarfan saman duk suna shafar daidaitawa da mai haɗin da aka haɗa shi da shi, kuma a ƙarshe asara.
Ko da ferrules masu inganci suna da bambancin. Tambayar ita ce yadda waɗannan bambance-bambancen ke nunawa a gwaji - kuma a cikin ainihin hanyar sadarwar ku.
Haɗawar Ma’auni–Bazuwar da Bazuwar–Bazuwar (Reference–Random vs. Random–Random)
Asarar shigarwa ba ƙayyadadden siffa ce ta mai haɗi guda ɗaya ba. Siffa ce ta mai haɗi da aka haɗa da wani mai haɗi.
Ma’auni–Bazuwar (Reference–Random) Mai haɗi ɗaya mai haɗin ma’auni ne mai matuƙar daidaito, wanda aka ƙera da juriya mafi tsauri fiye da masu haɗin fili na yau da kullum. Kuna haɗa kowane mai haɗin da ake gwadawa da wannan sanannen ma’auni mai kyau. Sakamakon shi ne ƙimar asara mafi ƙanƙanta kuma mafi daidaito, domin ferrule na ma’auni yana rufe yawancin bambance-bambancen.
Bazuwar–Bazuwar (Random–Random) Kuna haɗa masu haɗi biyu daga cikin kayayyakin da aka samar gaba ɗaya. Wannan ya fi kusa da abin da ke faruwa a fili: masu haɗi guda biyu na gaske, kowanne da juriyarsa, suna daidaituwa (ko kuma ba sa daidaituwa). Bambance-bambance suna ƙaruwa, kuma matsakaicin asara yawanci ya fi na gwajin Ma’auni–Bazuwar muni.
Dalilin Da Ya Sa Bambancin Ke Da Muhimmanci
Mai haɗin da ya yi kyau a masana’anta na iya ba da takaici a cikin rumbun na’urori (rack) na gaske, saboda a fili ba kasafai kuke haɗa shi da ferrule na ma’auni mara aibi ba. Shi ya sa wasu masana’antun a ɓoye suka fi son buga sakamakon ma’auni–bazuwar (reference–random): sun fi kyau a kan takardun bayanai.
A wajen shigarwa, musamman a wuraren haɗa igiyoyi (patching) inda ake sake haɗa masu haɗi ɗaruruwan lokuta, sakamakon Bazuwar–Bazuwar shine mafi kyawun hasashen gaskiya. Ingancinku daidai yake da mafi munin nau’in masu haɗi biyu da kuka haɗa.
Taruwar Juriya a Fili
Asarar shigarwa a yanayin Bazuwar–Bazuwar haɗakar wasu abubuwa ne:
- Kuskuren daidaiton tsakiyar ferrule (concentricity) daga masu haɗin biyu.
- Bambancin diamita na fiber core/cladding.
- Daidaituwar lissafin gogewa (polish).
- Datti ko gurbatawa.
Ko da kowane mai haɗi ya cika ƙayyadaddun bayanai, haɗuwarsu na iya tura nau’i biyu su wuce iyaka, musamman a cikin tashoshi masu haɗawa da yawa inda asara ke ƙara sauri. Idan kun tsara kasafin asara bisa ƙayyadaddun asarar da aka buga, kuna iya samun wahala ko gagara cimma wannan aikin a fagen.
IEC 61755-1 a Matsayin Jagora
Abin farin ciki, IEC tana da ma’aunin da aka buga wanda ke taimakawa ayyana yadda aiki “mai kyau” yake ga masu haɗin gani: IEC 61755-1. A ƙarƙashin IEC 61755-1, ana rarraba nau’i-nau’in masu haɗi da aka haɗa bazuwar zuwa A, B, C, ko D bisa ga asarar shigarwa da asarar komawa da aka auna.
- Darajar A ita ce mafi tsananin juriya — mafi ƙarancin matsakaicin asarar shigarwa da mafi daidaiton aiki tsakanin nau’ikan bazuwar.
- Darajar B har yanzu tana da inganci sosai, amma tare da iyakoki masu ɗan sassauci.
- Darajar C da Darajar D suna ba da damar asara mafi girma a hankali, kuma galibi ana amfani da su inda farashi ya fi muhimmanci fiye da matse kowane dB na gefe.
| Darajar IEC ta Haɗawar Bazuwar | Matsakaicin IL ≤ (dB) | Mafi girman IL ≤ (dB) ga ≥ 97% na Samfura | Bayani |
|---|---|---|---|
| A | 0.07 dB | 0.15 dB | Ba a kammala Daraja A ba tukuna; ana amfani da ita a aikace |
| B | 0.12 dB | 0.25 dB | Ana samun sa cikin sauƙi |
| C | 0.25 dB | 0.50 dB | Ya zama ruwan dare; sau da yawa ba a buga ba |
| D | 0.5 dB | 1.00 dB | Aiki mara kyau; sau da yawa ba a buga ba |
Ga mai siye, waɗannan maki gajeriyar hanya ce don sanin abin da kuke samu. Abin lura shi ne IEC 61755-1 yana sa a iya kwatanta darajoji tsakanin masu sayarwa daban-daban. Mai haɗin Darajar B daga mai sayarwa ɗaya dole ne ya cika sharuɗɗan gwaji da iyakoki iri ɗaya kamar Darajar B daga wani. Wannan yana nufin za ku iya ajiye ƙididdigar farashi (quotes) guda biyu gefe da gefe, ku duba darajar, kuma ku san ba ku kwatanta abubuwa biyu mabambanta ba.
Abin Da Za A Yi Game Da Shi
- Bincika takardar bayani a hankali — Shin ta ƙayyade darajar IEC? Idan ba ta faɗi ba, ɗauka cewa iyakar asarar da aka bayar ta Ma’auni–Bazuwar (Reference–Random) ce, kuma ku yi tsammanin asara mafi girma a fili.
- Saya daga mai samarwa da ke sarrafa samo ferrule sosai — Ba duk “Zirconia ferrules” ne iri ɗaya ba - dillalai masu arha suna amfani da ferrules marasa inganci.
- Tsaftace kafin kowace haɗawa — Datti yana ƙara tasirin rashin daidaituwa da juriya ke haifarwa. (Bari mu ɗan yi tallanmu: masu tsabtace haɗi na ClickPRO)
- Tsara da sarari na gefe — Idan kasafin asarar hanyar haɗinku ya matse, kada ku dogara ga mafi kyawun lambobin asarar shigarwa.
