Yintoni i-Rs-485 intsingiselo? Zithini iimpawu zayo ezithelekiswa ne-Rs-232-Centertion? Ngenxa yokubonakala kwangoko komgangatho we-Rs-232-C, kukho ngokungathandabuzekiyo, ikakhulu kubandakanya la manqaku amane alandelayo: (1) Inqanaba lesibonakaliso liphezulu, kunyanzelekile ukuba lisebenzise isiphaluka se-TTL sinxibelelanise nesekethe ye-TTL. (2) Inqanaba lokuhambisa liphantsi. Ukuhanjiswa kweAsynchronous, inqanaba le-baud yi-20kbps. . Olu hlaselo luqhelekileyo luqukethelwe kukuphazamiseka kwemo eqhelekileyo, ngoko ke i-Ing Conteriction Ingqukula ibuthathaka. (4) Umgama odlulayo unqunyelwe. Ixabiso elisemgangathweni lowona mgama uphambili ziinyawo ezingama-50, kodwa inokusetyenziswa kuphela malunga neemitha ezingama-50. Ngenxa yeentsilelo ze-Rs-232-C, imigangatho emitsha ye-increct ivele, kunye ne-Rs-485 yenye yazo. Inezi mpawu zilandelayo: 1. Iimpawu zombane ze-Rs-485: I-Logic "1" ifanekiselwa ngumbane wamandla phakathi + (2-6) v; I-Logic "0" ifanekiselwa ngumahluko wevolthi phakathi kwemigca emibini- (2-6) v. I-2. Elona zinga liphezulu lokuhambisa idatha le-Rs-485 yi-10 mb ps3. Isinxibelelanisi se-Rs-485 sisinxibelelanisi somqhubi olilinganiselweyo kunye nomahluko ohlukeneyo, ophucula i-Anti yeNdlela eNxulubazelelo, oko kukuthi, ubuchule bokuphazamiseka bulungile. I-4. Ixabiso eliqhelekileyo lomgama ophezulu wokudluliselwa kwe-Rs-485 i-streent ziinyawo ezingama-4000, ezinokufikelela kwiimitha ezingama-3,000. Ukongeza, ujongano lwe-RS-232-C luvunyelwe ukudibanisa enye i-transcere ebhasini, oko kukuthi, amandla esikhululo esinye. Isinxibelelanisi se-Rs-485 ivumela unxibelelwano ukuya kuthi ga kwi-128 transcelivers ebhasini. Oko kukuthi, inamandla esitishi esininzi, ukuze abasebenzisi banokuseka ngokulula uthungelwano lwezixhobo ngokusebenzisa i-interm-485 isinxibelelanisi se-485. Isinxibelelanisi se-Rs-485 sisinxibelelanisi sokhetho esithandwayo ngenxa yokuphazamiseka kwayo ngokulwa nengxolo, umgama omde kunye nokukwazi kwesikhululo sobuninzi. Ngenxa yokuba inethiwekhi ye-duppex eyenziwe nge-Rs485 i-Prosters ifuna kuphela iingcingo ezimbini, i-Rs485 i-insvertis yazo zonke izinto zamkelwe zitshintshwa. I-CORCH ye-PAP ye-DB-9 isetyenziselwa isiQinisekiso se-RS485 isiQinisekiso se-RS485 yokunxibelelanisa, i-DB-9 (umngxunya) isetyenziselwa isiphelo seKright Rs485, kunye ne-DB-9 (i-DB-9 (i-DB-9 (i-DB-9 (i-DB-9