Hamwe niterambere ryitumanaho, amakuru asabwa koherezwa ntabwo ari ijwi gusa, ahubwo ni inyandiko, amakuru, amashusho, na videwo. Hamwe nogutezimbere itumanaho rya digitale hamwe nikoranabuhanga rya mudasobwa, mu myaka ya za 1970 na 1980, sisitemu yo gutwara T1 (DS1) / E1 (1.544 / 2.048Mbps), X.25 yerekana ikarita, ISDN (Integrated Services Digital Network) na FDDI (Optical fibre ikwirakwizwa ryamakuru) hamwe nubundi buryo bwikoranabuhanga. Hamwe niterambere rya societe yamakuru, abantu bizeye ko imiyoboro igezweho yo gutanga amakuru ishobora gutanga imirongo itandukanye na serivisi byihuse, mubukungu, kandi neza. Ariko, bitewe na monotonicité ya serivisi zabo, kuba kwaguka kwagutse, no kugabanuka kwagutse, tekinoroji ya neti yavuzwe haruguru iri gusa mubihinduka byambere cyangwa kunonosora murwego ntabwo bigifasha.SDHyatejwe imbere munsi yinyuma. Muburyo butandukanye bwa Broadband optique ya fibre ya tekinoroji, sisitemu yo gukoresha imiyoboro ya SDH niyo ikoreshwa cyane.Ivuka rya SDH rikemura ikibazo cyo kutabasha kugendana niterambere ryurusobe rwumugongo hamwe nibisabwa serivisi zabakoresha bitewe numuyoboro mugari wibitangazamakuru byinjira, hamwe nikibazo cyo kubona "icyuho" hagati yumukoresha numuyoboro wibanze , kandi mugihe kimwe, yongereye ubwinshi bwumurongo mugari wohereza. Igipimo cyo gukoresha. Kuva hashyirwaho ikoranabuhanga rya SDH mu myaka ya za 90, ryabaye ikoranabuhanga rikuze kandi risanzwe. Irakoreshwa cyane mumurongo wumugongo kandi igiciro kigenda kigabanuka. Ikoreshwa rya tekinoroji ya SDH murusobekerane rushobora kugabanya umurongo mugari murusobe rwibanze. Ibyiza nibyiza bya tekiniki bizanwa murwego rwo kugera kumurongo, gukoresha byuzuye SDH synchronous multiplexing, interineti isanzwe ya optique, ubushobozi bukomeye bwo gucunga imiyoboro, ubushobozi bwurusobe rwimikorere ya topologiya hamwe nubwizerwe bukomeye bwo kuzana inyungu, nibyiza byigihe kirekire mubwubatsi kandi iterambere ryimiyoboro.