Kutheni i-AT imiyalelo?

IIM imiyalelo yenzelwe ukulawula iimodem. Enyanisweni, ezi ziqalo zomdlalo eziqala ngee-AT, kwaye zigqitywe ngeempawu zokubuya. Nangona kunjalo, kumgca wokuqalisa, izinto ezivaliweyo zenziwe ngokuzenzekelayo. Iimpawu zomyalelo we-AT zinokuba ziphezulu okanye i-lowercase. Kukho izikhala phakathi kwamaqela ngamnye.

Iinkalo ezongezelelweyo

Ukongezelela ekwenzeni imisebenzi ephambili ehambelana nokutshintsha i modem modes, imiyalelo ye-AT inokulawula iirejista ze-S zesixhobo soqhagamshelwano. Ziqulethe iinkcukacha ezahlukeneyo zeenkonzo, eziyimfuneko ukuqinisekisa ukufaneleka kweemodem. Ngokomzekelo, kwi-S-irejista, imizuzu ingagcinwa ecacisa ixesha lokuphumla, iintlobo zezivumelwano ezisetyenzisiweyo, izibonakaliso ze-analog, amanqanaba ezibonakaliso zengeniso kunye neziphumo, njalo njalo. Inani lerejista lichongiwe ngumthuthukisi weemodem, ngamanye amaxesha inani labo lilonke linamakhulu ambalwa. Nangona kunjalo, yamkelekile ukuba i-nodes ezi-13 zokuqala zigcina uxwebhu oluqulunqwe ngumenzi. Nangona into yokuba ngamnye umsebenzisi unokukwazi ukuguqula iziqulatho ze-S-rejista kwaye azifunde ngokwabo, asifanele sikhohlwe ukuba kukho ubudlelwane obuyinkimbinkimbi phakathi kwedatha kwiindidi ezahlukeneyo zenkqubo. Ngoko utshintsho olungabonakaliyo lwalo naziphi na iirejista lunokubangela ukuba kwixesha elizayo akuyi kubakho ukusebenzisa iinkqubo eziqhelekileyo zokusebenza kwi-Intanethi.

Iimfuno ze-AT ezisisiseko ezisetyenziswa rhoqo kwiimodem

1. I-L0-L3 - ithetha isithethi somthamo. Amanani ahambelana namanqanaba amancinci, aphantsi, aphezulu kunye aphezulu.

2. In-ithetha isicelo se data ukusuka kwimemori engunaphakade ye modem, apho n iyahambelana nombolo yemfundiso yokuqala.

3. I-M0-M3 - isimo se-dynamics, apho:

- 0 - ifowuni ivaliwe;

- 1 - isithethi sitshintshiweyo ukusuka "kwi-off-hook" uze ude uqhagamshelwano lwenziwe;

- 2 - ifowuni isoloko iphelile;

- 3 - isithethi sijika kuphela emva kokunyusa idijithi yokugqibela kwinani, kwaye icima emva kokuseka iseshoni yoqhagamshelwano.

4. P kunye neT - ihambelana nokusetyenziswa kwe-pulse (PULSE) kunye ne-tonal (TONE) yokudayela.

5. S - sebenzisa neirejista zeemodem. SO? Idibana nesicelo somxholo we-SO node. SO = 1 kuthetha ukunika urhulumente irejista enikeziweyo.

6. I-Z - ithetha ukuba umxholo wezo zonke izidibaniso isetyenziswe kwinqanaba lokuqala.

7. & F - ihambelana nokubuyiswa kwengcaciso kwii-rejista ze-modem ukusuka kwimemori engunaphakade. Ezi nkcukacha zirekhodwa ngumenzi we-modem, azikwazi ukutshintshwa ngumsebenzisi.

8. & W-kuthetha ukubhalela okubhalwe kuzo zonke iirejista kwimemori ekhethekileyo engaxhaswanga kunye nokugcina izicwangciso zomsebenzisi.

Imiyalelo ye-GSM-modems

Ngokomgangatho we-GSM 07.07, umgca wolawulo ukuchaza "umxholo" kufuneka ube nale fomu elandelayo: + CGDCONT = [, [, [, <, [, [, [, [, ..., [, [, [, ..., , PdN]]]]]]]]]]. Makhe sijonge ukuba lithini irekhodi (umyalelo):

1. I-cid ngumkhomba wesimo. Njalo inani elipheleleyo "uphawu". Ixabiso eliphezulu lichongwa ngumzekelo wefowuni.

2. I-PDP_type - ithetha uhlobo lweprotocol.

3. I-APN - igama lokufikelela kwendawo, elibekwe ngumqhubi weselula.

4. i-d_comp - ithetha i-compression PDP, apho i-0 - off, 1 - inikwe amandla.

5. i-h_comp - ihambelana nokunyanzeliswa kwe-header PDP, apho i-0 ivaliwe, 1 ivuliwe.

6. i-pd1 ... i-pdN-ibonisa iiparitha zamagama ezikhethekileyo kulolu hlobo lwenkqubo.