Tuam Txhab Xov Xwm

Dab tsi yog CATV system Thaiv Kev nyiam?

2021-03-30

Dab tsi yog CATVkaw lusWiring nyiam?

 

 

CentralizedNetwork laij cov qauv rau CATV Qhov Kev Ua Hluav Taws Xob:

Cov qauv no tau txhais raws li: tag nrho cov hauv paus ceg xa khoom kom muaj zog nyob rau hauv chav tsis muaj zog tam sim no, thiab lub xov tooj cua xov tooj cua cmuaj peev xwm tau ntawm nws tus kheej los ntawm txhua tus neeg siv cov davhlau ya nyob twg (ntsawb) rau cov chaw tsis muaj zog tam sim no kom txuas nrog cov ceg xa tawm.

 

Kab rov tav qhov ntawm Coaxial Cmuaj peev xwm RG6, the calculation method of cmuaj peev xwm usage:

 

Average cmuaj peev xwm length = (horizontal distance of the farthest user terminal + horizontal distance of the nearest user terminal)/2+2H (H——floor height)

 

Actual average cmuaj peev xwm length = average cmuaj peev xwm length × 1.1+ (termination tolerance, usually 3)

 

Total number of cmuaj peev xwms required = total number of user terminals x actual average cmuaj peev xwm length (m)

 

Nco tseg:Cov kab rov tav ntawm qhov deb tshaj plaws thiab ze tshaj plaws ntawm tus neeg siv cov davhlau ya nyob twg yog qhov nrug deb ntawm lub thawv xa khoom mus rau qhov chaw deb tshaj thiab ze tshaj plaws cov neeg siv khoom siv, nrog rau cov kab rov tav tiag tiag. Yog hais tias lub thawv faib pem teb tau teeb tsa hauv ntau cov plag tsev, qhov siab sib thooj hauv pem teb yuav tsum suav nrog.