The 1*9 paketiOptical modulemankhwala anayamba kupangidwa mu 1999. Ndi fixed kuwala gawo mankhwala.Nthawi zambiri amachiritsidwa mwachindunji (kugulitsidwa) pa bolodi la dera la zipangizo zoyankhulirana ndikugwiritsidwa ntchito ngati gawo lokhazikika la kuwala.Nthawi zina imatchedwanso 9-pin kapena 9PIN Optical module..

Monga dzina limatanthawuzira, gawo ili la fiber optic lili ndi PIN zisanu ndi zinayis,yomwe ndi yodziwika bwino yoyikamo ma module oyambilira, komanso mtundu womwe uli ndi kufunikira kwakukulu kwa msika.Multimode converters ndi magawo ena oyang'anira mafakitale.Mwachidule, 1 × 9 optical module ndi chipangizo choyankhulirana chomwe chimagwiritsa ntchito mafunde opepuka monga chonyamulira mafunde ndi ulusi wa kuwala monga njira yotumizira.Amagwiritsa ntchito gwero lowunikira kuti asinthe ma siginecha amagetsi kukhala ma optical, omwe amalowetsedwa ku fiber optical kuti atumize.Chizindikirocho chimakulitsidwa, chimapangidwa ndikusinthidwanso kuti chibwezeretse chizindikiro choyambirira chamagetsi.