ABC polasetiki illumination box modulus terminal composite lisebelisoa, e sebeletsa ho laola le aba lisebelisoa tsa tšebeliso ea matla le ho sireletsa potoloho khahlanong le naha. Potoloho e khutšoanyane kapa dilemo tsa ho hahaba. E sebetsa haholo libakeng tsa moaho oa modem. Tse kang tsa khoebo le tse phahameng meaho, liteishene, lipetlele, likolo, meaho ea bolulo le liofisi tsa mmuso, joalo-joalo.