Indastering ea Marang-rang ea Lintho, ha feela u le moenjiniere ea kentsoeng, ka kakaretso u tla pepesetsoa RS232, RS485, TTL likhopolo tsena.
Na u kopane le mohopolo ona ho Baidu e batlisise, ka tlase hore u hlophise RS232 le RS485, liphapano tsa sebopeho sa TTL.
Litšobotsi tsa motlakase tsa sebopeho sa RS232 Motlakase oa mohala ofe kapa ofe oa lets'oao ho RS-232-C ke kamano e mpe ea logic.
Ke hore, "1" e utloahalang ke -3 ho -15V, 'me "0" e utloahalang ke ho tloha 3 ho ea ho 15V.Lihokelo tsa RS-232-C ka kakaretso li na le li-plug holder tsa DB-9, hangata li polaka qetellong ea DCE le li-sockets qetellong ea DTE.Boema-kepe ba RS-232 ba PC ke sokete ea nale ea 9-core.Lisebelisoa tse ling li hokahantsoe le sebopeho sa RS-232 ho PC hobane ho hlokahala mela e meraro feela, e leng "romella data TXD", "receiving data RXD" le "signal-to-ground GND" ntle le ho sebelisa lets'oao la taolo ea phetisetso. mokga o mong.
Mohala oa phetisetso oa RS-232 o sebelisa para e sothehileng e sirelelitsoeng.
Litšobotsi tsa motlakase tsa RS485 (likhokahano tse sebelisoang hona joale hangata) RS485 e sebelisa moelelo o fapaneng oa lets'oao le fosahetseng, mohopolo oa "1" o emeloa ke phapang ea motlakase lipakeng tsa mela e 'meli joalo ka -(2 ho isa ho 6) V, le "0" e emeloa ke phapang ea motlakase pakeng tsa mela e 'meli e le plus (2 ho 6) V. Boemo ba pontšo ea sehokelo bo tlase ho feta THE RS-232-C, ha ho bonolo ho senya sebopeho sa potoloho ea chip, mme boemo bona bo lumellana le boemo ba TTL, bo ka hokahanngoa habonolo le potoloho ea TTL.
RS-485 e na le tekanyo e phahameng ea phetisetso ea data ea 10Mbps.
Matshwao a boemo ba TTL a sebediswa haholo hobane ditlhahiso tse tlwaelehileng tsa data ke tsa binary, ka 5V e lekanang le logic "1" le 0V e lekanang le logic "0", e tsejoang e le ttl (transistor-transistor logic level Transistor-Transistor Logic) signal. tsamaiso.
Ena ke theknoloji e tloaelehileng ea puisano pakeng tsa likarolo tsa mochine o laoloang ke mochine oa k'homphieutha.
Phapang pakeng tsa RS232 le RS485, TTL
1, RS232, RS485, TTL e bua ka boemo ba boemo (letšoao la motlakase)
2, maemo a boemo ba TTL ke boemo bo tlase ba 0, boemo bo phahameng ke 1 (fatše, logic e tloaelehileng ea potoloho ea dijithale).
3, tekanyo ea boemo ba RS232 ke boemo bo botle ba 0, boemo bo bobe ba 1 (ho ea fatše, e ntle le e mpe 6-15V e ka ba, esita le ka boemo bo phahameng ba ho hanyetsa).4, RS485 le RS232 li ts'oana, empa ts'ebeliso ea lets'oao la phapang, e loketseng phetisetso ea nako e telele, e potlakileng haholo.
Nako ea poso: Jul-24-2019