1. Cov muaj nuj nqi tseem ceeb
Teeb Liab Hloov Tshiab: USB (ib-lub cim xaus) tsis tuaj yeem tsav ncaj qha DMX, thiab RS485 (thiab kev sib txawv ntawm kev tawm tsam ntev (txog 1200 meters).
Raws tu raws tu qauv: Rs485 yog siv los ua cov txheej txheem ntawm lub cev los hloov DMX512 cov ntaub ntawv thav duab (250kbps), tsuas yog ua kom cov ntaub ntawv muaj zog sib kis.
Ntau hom ntaus ntawv txhawb: RS485 txhawb nqa kev caij tsheb npav Topology thiab tuaj yeem txuas ntau cov DMX cov cuab yeej siv nyob rau hauv cov khoom siv thaum kawg (txog 32 lo).
2. Cov yam ntxwv tseem ceeb ntawm RS485
Cov kis tau tus mob sib txawv: Cov ntaub ntawv + \/ Cov Ntaub Ntawv- Twisted khub Offsets Cov Kev cuam tshuam nrog kev cuam tshuam hom
Ib nrab-chav sib txuas lus: phim rau DMX512 master-qhev architecture (maub los xa, khoom siv tau txais).
3. Workflow
USB nti (xws li FT232) hloov mus rau UART Kos npe → Rs485) hloov mus rau cov teeb liab sib txawv → XLR tsim tawm rau DMX ntaus ntawv.
4. Sau ntawv
Terminal tsis kam: ib 120ω resistor yuav tsum tau ntxiv ntawm Pin2 \/ PIN3 ntawm XLR kom tiv thaiv cov paib.
Kev xaiv xaim: cov ntaub thaiv npog sib tw (xws li Belden 9841) txhim kho kev cuam tshuam los tiv thaiv kev cuam tshuam los tiv thaiv kev cuam tshuam.
