Ma transceivers opanga mavidiyo a digito amatha kukhala ndi ntchito zingapo, ndipo mtundu uliwonse wa ntchito uli ndi zofunikira zofananira zaukadaulo, monga index index, audio index, asynchronous data index, Ethernet index, telefoni ndi zina zotero. Zizindikiro zaumisiri zinazake zitha kufunikira kuti wopanga apereke satifiketi yoyeserera ya gulu lachitatu, ndipo mainjiniya oyenerera ayenera kubwereza mayeso molingana ndi zisonyezo zoperekedwa ndi wopanga asanagule zida kuti awone zizindikiro zenizeni zaukadaulo ndi kukhulupirika kwa wopanga. Apa ikuyang'ana kufotokoza mwachidule zizindikiro ziwiri zotsatirazi za kanema kuchokera pamalingaliro a uinjiniya.

Video bandwidth ndi imodzi mwazinthu zomwe zimatchulidwa pafupipafupi. Makanema osakwanira a bandwidth, tsatanetsatane wa chinsalu chowunikira sizomveka bwino, mawonekedwe opingasa ndi otsika, ndipo kusokoneza kwakukulu kwamtundu kapena kutayika kwamavidiyo kumachitika. Ndi chifukwa cha kufunikira kwa bandwidth ya kanema ku khalidwe lachithunzi kuti opanga ena osakhulupirika amakokomeza dala mavidiyo amtundu wa malonda awo kuti anyenge makasitomala. Mwachitsanzo, kanema wa digito wowonera kanema wopangidwa ndi wopanga wina amati bandwidth yake yamavidiyo ndi 8M, koma ma frequency ake otsatsira makanema omwe amalengezedwa poyera ndi 12.5M. Malinga ndi lamulo lachitsanzo la Nyquist, kuti abwezeretse chizindikirocho, mafupipafupi ake a sampuli ayenera kukhala osachepera kawiri chizindikiro chafupipafupi , kuwerengedwera motere, mavidiyo owonetsera mavidiyo a transceiver opanga mawonekedwe sangathe kupitirira 6.25M mulimonsemo. Kwa makampani opanga uinjiniya ndi ogwiritsa ntchito poyang'ana tsatanetsatane wa chithunzicho, amatha kuweruza pafupifupi bandwidth ya chipangizocho.

APL ndiye mulingo wazithunzi, ndipo makampani ambiri opanga mainjiniya salabadira kwambiri kapena sadziwa bwino chizindikirochi. Komabe, ngati tilankhula za vuto lomwe timakumana nalo m'mapulojekiti ena: chizindikiro cha kanema chimafalikira kudzera pa transceiver ya kuwala, pakakhala malo ambiri oyera pachithunzichi (monga kamera ikaunikiridwa ndi kuwala kolimba), chithunzicho chili patali. polojekiti adzagwedezeka horizontally, ndiye Ogwira ntchito zaumisiri sayenera kukhala alendo. Izi ndichifukwa choti mitundu ya APL yama transceivers opanga makanema opangidwa ndi opanga ena ndi yopapatiza kwambiri. Pakakhala malo ambiri oyera mu chizindikiro cha chithunzi, gawo la DC mu mzere uliwonse wa chizindikiro cha chithunzicho likuwonjezeka, ndipo APL idzawonjezeka, zomwe zimapangitsa kuchepa kwa matalikidwe a chizindikiro cholumikizira chopingasa. Kapena kutayika, chowunikira sichingazindikire kulumikizana kwa mzere ndipo chinsalu chimagwedezeka.