Video: Yuav ua li cas kom tau DTR?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tus kws kho mob noj zaub mov, sau npe ( DTR ) yuav tsum ua kom tiav qhov tsawg kawg ntawm ib qho kev kawm tiav qib siab los ntawm lub tsev kawm ntawv uas tau lees paub los ntawm ACEND. Qhov no suav nrog kev ua haujlwm raws li tau hais los saum toj no thiab kev ua haujlwm tsawg kawg 450 teev, feem ntau yog saib xyuas los ntawm RD.
Hais txog qhov no, DTR yog dab tsi thiab nws lub hom phiaj?
Data Terminal Npaj txhij ( DTR ) yog a tswj cov teeb liab hauv RS-232 serial kev sib txuas lus, kis tau los ntawm cov khoom siv davhlau ya nyob twg (DTE), xws li a computer, rau cov khoom siv sib txuas lus cov ntaub ntawv (DCE), piv txwv li a modem, los qhia qhov ntawd tus lub davhlau ya nyob twg yog npaj rau kev sib txuas lus thiab tus modem tuaj yeem pib a kev sib txuas lus channel.
Kuj Paub, RTS chaw nres nkoj yog dab tsi? Lub Comtrol DeviceMaster RTS 4- Chaw nres nkoj DB9 / RJ45 yog plaub- chaw nres nkoj ntaus ntawv server tsim rau network-enabling serial kev sib txuas lus pab kiag li lawm. Thaum siv nrog NS-Link ™ tsav tsheb software thiab tus tswv PC, DeviceMaster RTS enables muab tso rau ntawm COM los yog TTY chaw nres nkoj nyob txhua qhov chaw ntawm Ethernet network lossis thoob plaws Is Taws Nem.
Ib sab saum toj, DTR thiab DSR yog dab tsi?
DTR / DSR kho vajtse ntws. Cov ntaub ntawv terminal npaj txhij ( DTR ), lwm hom kev tswj xyuas cov khoom siv hluav taws xob, feem ntau yog tsim los ntawm cov khoom siv, xws li cov tshuab luam ntawv los qhia tias lawv npaj txhij los sib txuas lus nrog lub kaw lus. Cov teeb liab no yog siv ua ke nrog cov ntaub ntawv npaj npaj ( DSR ) tsim los ntawm qhov system los tswj cov ntaub ntawv ntws.
RTS CTS ua haujlwm li cas?
Cov RTS / CTS Mechanism Thaum ib lub node xav xa cov ntaub ntawv mus rau lwm qhov, nws xa tawm a RTS 'Thov xa' pob ntawv. Lub receiver node teb nrog ib pob ntawv hu ua CTS 'Cleared to Send' pob ntawv. Tom qab lub transmitter node tau txais cov CTS pob ntawv, nws xa cov ntaub ntawv pob ntawv.
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