Ma module awiri amtundu umodzi komanso ma fiber optical amatha kutumiza ndikulandila.Popeza mauthenga awiriwa ayenera kutumiza ndi kulandira.Kusiyana kwake ndikuti gawo limodzi la fiber optical lili ndi doko limodzi lokha.Ukadaulo wa Wavelength division multiplexing (WDM) umagwiritsidwa ntchito kuphatikiza mitundu yosiyanasiyana yolandila ndi kutumiza mafunde mu fiber imodzi, kusefa kudzera mu fyuluta mu gawo la kuwala, ndipo nthawi yomweyo kumaliza kufalitsa kwa ma 1310nm optical sign ndi kulandira 1550nm optical sign, kapena mosemphanitsa. .Chifukwa chake, gawoli liyenera kugwiritsidwa ntchito pawiri (ndizosatheka kusiyanitsa ulusi wokhala ndi mawonekedwe amtundu wa transceiver).
Choncho, gawo limodzi la fiber optical module lili ndi chipangizo cha WDM, ndipo mtengo wake ndi wapamwamba kusiyana ndi wapawiri fiber optical module.Popeza kuti ma modules awiri opangidwa ndi fiber optical amalandira ndi kulandira pamadoko osiyanasiyana a optical fiber, samasokonezana, choncho safuna WDM, kotero kuti kutalika kwake kungakhale kofanana.Mtengo wake ndi wotsika mtengo kuposa wa ulusi umodzi, koma umafunika zida zambiri za fiber.
Magawo awiri a fiber optical module ndi single fiber optical module amakhala ndi zotsatira zomwezo, kusiyana kokha ndikuti makasitomala amatha kusankha CHIKWANGWANI chimodzi kapena CHIKWANGWANI chapawiri malinga ndi zosowa zawo.
Single fiber optical module ndiyokwera mtengo kwambiri, koma imatha kusunga gwero la fiber, lomwe ndi chisankho chabwinoko kwa ogwiritsa ntchito omwe ali ndi fiber zosakwanira.
Dual fiber optical module ndiyotsika mtengo, koma imayenera kugwiritsa ntchito CHIKWANGWANI chimodzi.Ngati zida za ulusi ndizokwanira, mutha kusankha gawo lachiwiri la fiber optical.