Khoom Paub meej:
DB 9 9- pin davhlau ya nyob twg tuaj yeem nres tsheb nrog muaj 12,} h thiab tuaj yeem}
DB9 RS232 davhlau ya nyob twg tuaj yeem muab cov phiaj xwm ua tiav 9 cim ncaj qha rau 9 pins ntawm DB9 Tus Poj Niam Txuas Txuas
Tus tuaj yeem siv tau tuaj yeem siv qhov twg tuaj yeem cable lossis tuaj yeem ntawm thaum kawg tsis muaj kev txiav tawm sab hauv.
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Raws tu raws tu raws tu txheej |
Yuav npav |
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Hom |
Premier Cable, OEM |
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Teeb Duab # |
PCM -0391 |
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Terminal Expector |
12 {0 Ohm, 1/4w, 0.25W |
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Resistor pin |
Pin 2, pin 7, tuaj yeem-siab, tuaj yeem-tsawg |
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Tus txuas |
DB9, tuaj yeem thauj RS232 |
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Daim ntawv muaj cai |
Ul, rohs, ncav cuag |
Vim li cas peb xav tau DB9 RS232 davhlau ya nyob twg tuaj yeem thauj khoom?
Nyob rau hauv cov tuaj yeem (maub los Cheeb Tsam Network) system, DB9 yog hom txuas, thiab lub chaw tiv thaiv kev tiv thaiv, thiab lub davhlau resistor yog siv rau lub davhlau ya nyob twg. Lub tsheb npav tuaj yeem yog lub zog sib tw, thiab lub davhlau ya nyob twg siv tau ntawm ob qhov kawg ntawm lub network thiab muaj ob lub luag haujlwm tseem ceeb:
Impedance txuam:
Lub davhlau ya nyob tiv thaiv kev cuam tshuam ntawm lub tsheb npav kom ntseeg tau tias lub teeb liab kis tau thaum caij tsheb npav. Qhov tsis kam ntawm lub terminating resistor yog feem ntau 120 ohms, uas phim tus yam ntxwv ntawm lub tsheb npav.
Cov teeb liab liab liab:
Kev tiv thaiv kev nqus tau pab cov teeb liab bungpress ntawm lub npav thiab tiv thaiv cov paib teeb liab los ntawm kev ua rau cov teeb liab distortion. Nyob rau hauv lub can system, lub davhlau ya nyob tiv thaiv tuaj yeem txo cov amplitude thiab ntug hloov pauv ntawm lub teeb liab thiab xyuas kom meej ntawm lub teeb liab. Nyob rau hauv ib tug tuaj yeem siv tes ua ke, kev tiv thaiv kev tiv thaiv feem ntau yuav tsum muaj ntawm ob ntu no. Ntawm ob qhov kawg ntawm lub network, muaj ib qho tiv taus ntawm ib sab thiab tsis nyob rau sab tod. Qhov no ua kom yuam kev sib txuam hauv lub npav thiab pab lub teeb liab zoo. Yog hais tias dectinating resistors yog muab nyob rau txhua txhua ntawm hauv lub network, cov teeb liab reflections thiab lwm yam teeb meem kev sib txuas lus yuav ua rau muaj kev sib txuas lus. Yog li ntawd, qhov tseeb configuration ntawm terminal resistor yog qhov tseem ceeb heev kom ntseeg tau tias qhov ruaj khov thiab kev ntseeg tau ntawm lub chaw tsheb npav.
Hais Txog Peb:
Premier Cable, ib lub koob npe nrov tshwj xeeb tshwj xeeb hauv kev tsim cov khoom muaj txiaj ntsig zoo tuaj yeem npav Terminator D-Sub 9 Cov Connectors. Raws li cov chaw tsim khoom lag luam hauv lub chaw lag luam cable tuaj yeem sib txuas lus, peb txaus siab rau peb txoj kev mob siab rau qhov tseeb ennergineering, kev ntseeg tau, thiab cov neeg siv khoom txaus siab.
Ceeb toom:
Peb nkag siab lub luag haujlwm tseem ceeb uas tuaj yeem ua haujlwm npav ua si hauv kev txhim kho kev sib txuas lus hauv kev sib txuas lus hauv kev sib txuas lus. Yog li ntawd, peb tau siv cov kev tswj hwm zoo tswj hwm thoob plaws peb cov txheej txheem kev tsim khoom. Peb txoj kev cog lus rau kev ua tau zoo yog xav hauv txhua lub txuas peb cov khoom lag luam.
Tiv tauj peb:
Ua tsaug rau koj txiav txim siab Premier Cable raws li koj tus khub ntseeg siab rau DB9 RS232 davhlau ya nyob twg tuaj yeem daws cov kev pab daws teeb meem. Peb cia siab tias yuav tau ua haujlwm ua ke.
Cim npe nrov: DB9 RS232 davhlau ya nyob twg tuaj yeem thauj khoom, Tuam Tshoj DB9 RS232 davhlau ya nyob twg tuaj yeem thauj khoom lag luam, cov chaw muag khoom, Hoobkas
