Null imodemu ikhebula: incazelo esibonakalayo, umsebenzi Wiring

Abakhiqizi abamukelayo satellite ngezikhathi ukukhulula izibuyekezo software imishini, alungise amaphutha kulo, kanye nokusebenza okuthuthukisiwe noma wanezela ezinye izici ezintsha.

Ukuze ithuthukiswe le firmware, kuzomele uqale uyilande ku-PC yakho, bese uxhuma owamukelayo ukuba PC bese uqale kabusha uhlelo. Ukuze uthole ikhompuyutha exhunywe kwi-umsakazo odlala ama-signal satellite usebenzisa ikhebuli null imodemu. Uma ungenayo i-interface ezinjalo, angathengwa at kakhulu izitolo zama-computer, nakuba ayengafiki ngaso sonke isikhathi, mikhiqizo khona. Kunoma ikuphi, kufanele ngikhethe ukufuna isixazululo turnkey noma ukwenza ikhebula null-imodemu ngokwakho. Inketho yokugcina ishibhile.

Indlela yokwenza null-imodemu ikhebula RS-232?

Ukuze ukukhiqizwa yayo, sidinga ikhebula ezine-core (obuphelele kunqunywa umsebenzisi) kanye ezimbili RS-232 Isixhumi hlobo ( "umama"). Lezi nezixhumi zingatholakala kunoma iyiphi umsakazo, nje ithandwa kakhulu, njengoba zikhona cishe kuyo yonke ikhompyutha siqu njengoba port COM. Ikhebula singasebenza njengesisekelo esiqinile sokufinyelela pair elisontiwe. Ngenxa yalesi basonta ndawonye ngamunye cores bese babashayeli ezine. Okulandelayo, udinga ubambe isixhumi pinout. Kuyadingeka ukuvimbela wesifunda ngephutha, njengoba lokho kuyoholela ukwehluleka imishini. Okunjalo ikhebuli null imodemu Luzosebenza stably nge ubude bentambo amamitha 50.

Izincomo nokunamathisela ngomthofu

Lo myalo akuyona impoqo kodwa uyahlolwa practice:

1. Musa kufayela kude labo izikhonkwane owengeziwe izixhumi.

2. kwakwakhe isixhumi housings isidingo ukucindezeleka ekupholiseni, t. K. Ngokuphathelene umzimba idivayisi. Kungenjalo kunobungozi ashise esibonakalayo COM kukhompyutha noma umamukeli. Le ngxube akudingekile uma yonke imishini lihlala.

3. Ithanda sebenzisa ikhebula kwakuvikela, ngoba isebenza kangcono.

4. Kuzo zonke tuners satellite isiginali oxhumana ezintathu kuphela.

5. Kwezinye abamukelayo akudingeki MAH232 chips (sicabangela ukuthi uzobe elise adaptha zangaphandle). Nokho, ngo-zinsizakuphila ku echwebeni COM behileleka okukhiphayo ezine owamukelayo sika, ekhishwa adaptha - efanayo izikhonkwane ezintathu. Ngakho-ke, ngaphambi kokuxhuma null imodemu ikhebula, udinga ngempela ukukufunda ngokuningiliziwe imibhalo kwidivaysi yakho kungase kudingeke ukuba uqale uxhume adaptha.

6. Kwezinye tuners izikhonkwane 2 no-3 eguqulayo isixhumi. Kulokhu, uzodinga uqonde ikhebula, hhayi crossover. Ukuze ukwazi ukubona ukuthi yiluphi uhlobo isixhumi emi phezu umamukeli yakho, kufanele uhlole ukuthi yini nokubhalwa kwawo.

7. Ikhebula balahleke Kunconywa ukuba isetshenziswe, njengoba kuyintando livikela kakhulu ukucindezeleka mechanical. oxhumana Soldered kungcono ukugcwalisa ne abicah ukuze ugweme isekhethi.

Wiring RS232 null-imodemu ikhebula

Interface COM kumelwe solder bonke oxhumana nabo ezintathu kanye Isixhumi izindlu. Ngo ikhebuli enjalo kubalulekile ukusebenzisa 2, 3 no-5 oxhumana nabo. Ngo samuntu, ngqo null imodemu oxhumana ikhebula idatha soldered ngendlela efanayo kokubili nezixhumi futhi crosswise 2 no-3 kuthiwa ezazijikeleziswa.