Sannu, Masu Karatu.A cikin wannan labarin zan tattauna akan OSI-Data Link Layer Error Control tare da bayani.Mu fara…
Don fahimtar watsa bayanan haɗin yanar gizon mu ɗauki misali, idan na'urar A tana buƙatar sadarwa tare da na'urar B, ana buƙatar hanyar haɗin sadarwa da jerin na'urori.Idan duk layin sadarwa ba shi da hanyar sarrafa kurakurai, to sai dai bayanan da A ke aikowa B zai aika. kuskure a na'urar mafi kusa da A, kuma A yana buƙatar sake aikawa, kuma za'a iya aika madaidaicin firam ɗin bayanai da farko.Idan an aika shi zuwa gefen B, to, duk layin zai iya adana albarkatun, wanda shine hanyar sarrafa kuskuren bayanan bayanan.
Ikon kuskuren layin hanyar haɗin bayanan yana da niyya ga kurakurai kaɗan akan hanyar haɗin.Akwai galibin hanyoyin sarrafawa guda biyu, waɗanda suka kasu zuwa lambar gano kuskure da lambar gyara kuskure.Ƙididdiga na gano kuskure ya haɗa da daidaito da sakewa CRC cyclic, yayin da lambar gyaran kuskure ta haɗa da lambar hamma.
Ƙididdiga da daidaitawa na layin haɗin gwiwa da Layer na jiki sun bambanta.Layer na zahiri shine don ɗigon guda ɗaya don magance matsalar aiki tare a cikin tsarin watsawa, kamar codeing na Manchester.Ƙididdiga na layin haɗin bayanan yana nufin saitin bayanai na bit, kuma yana gane kuskuren sarrafa tsarin tsarin bayanan binaryar a cikin tsarin watsawa ta hanyar fasaha na lambar sakewa.
Abin da ke sama shine bayanin ilimin "OSI-Data Link Layer-Error Control" wanda Shenzhen Shenzhen HDV photoelectric Technology Co., Ltd ya kawo. Kayayyakin sadarwa da kamfanin ke samarwa;Rukunin Module:na gani fiber modules, Ethernet modules, na gani fiber transceiver modules, na gani fiber damar kayayyaki, SSFP Optical modules, kumaSFP Optical fibers, da dai sauransu.
Kashi na ONU: EPON ONU, AC ONU, fiber optic ONU, CATV ONU, GPON ONU, XPON ONU, da dai sauransu.
Babban darajar OLT: Canji a farashin OLT, Farashin GPON OLT, Farashin EPON OLT, sadarwa OLT, da dai sauransu.
Samfuran samfurin da ke sama na iya ba da goyan baya ga yanayin cibiyar sadarwa daban-daban.Ƙwararrun R & D mai ƙwararru da ƙarfi na iya taimaka wa abokan ciniki tare da al'amurran fasaha, kuma ƙungiyar kasuwanci mai tunani da ƙwararrun za su iya taimaka wa abokan ciniki su sami ayyuka masu inganci yayin shawarwarin da suka gabata da aikin samarwa.Barka da zuwa tuntube mu
