A cikin gina cibiyoyin sadarwa na yanki na birni (musamman hanyoyin sadarwa na OTN na nesa mai nisa), kayan aikin multixing na tsawon tsayi yana da mahimmanci musamman. DWDM maɗaukakin raƙuman raƙuman ruwa mai yawa kayan aiki yana da nisa mai nisa, ƙarfin watsa bandwidth mai girma; CWDM m rabo multixing kayan aiki yana da ƙananan farashi. Don haka idan kun zaɓi madaidaicin rabe-raben multixing kayan aiki don gina tsarin watsa kayan gani mai tsada?

Menene bambanci tsakaninCWDM/DWDM Multiplexer?

A halin yanzu, hanyar da ta dace don magance ci gaba da karuwa na watsa bayanai na bandwidth shine yin amfani da kayan aiki na CWDM na tsawon raƙuman raƙuman raƙuman ruwa da kayan aiki na DWDM na tsawon lokaci, amma sun bambanta da yawa.

(1) Tazarar tashoshi tsakanin CWDM na'ura mai sarrafa raƙuman raƙuman raƙuman raƙuman ruwa da DWDM na'urori masu yawa

An ayyana tazarar tasha azaman bambancin mitar mai ɗaukar hoto tsakanin tashoshi na gani biyu maƙwabta, kuma ana amfani da shi gabaɗaya don hana tsangwama tsakanin tashoshi. CWDM na'ura mai ɗaukar nauyin raƙuman raƙuman raƙuman raƙuman ruwa yana da tazara mai faɗi fiye da na DWDM na'ura mai ɗaukar nauyi. Yana iya watsa raƙuman raƙuman ruwa 18 a cikin grid mai ban mamaki daga 1271 nm zuwa 1611 nm tare da tazarar tashoshi na 20 nm. DWDM na'ura mai ba da hanya tsakanin hanyoyin sadarwa na iya watsa 40, 80 ko 160, kuma tazarar tashar na iya zama 0.8 nm.

(2) Nisantar watsawa tsakanin CWDM na'ura mai sarrafa raƙuman raƙuman raƙuman raƙuman ruwa da DWDM na'urori masu yawa

Saboda raƙuman raƙuman raƙuman raƙuman ruwa mai yawa (DWDM) an haɗa shi sosai a cikin tsarin watsa fiber na gani, DWDM raƙuman raƙuman raƙuman ruwa na iya watsa nisa mai nisa fiye da CWDM raƙuman raƙuman ruwa na multixing kayan aiki. CWDM na'ura mai ɗaukar nauyi na tsawon zango a halin yanzu ba zai iya cimma watsa nisa mara iyaka ba, kuma matsakaicin nisan watsawa shine kilomita 160 kawai, yayin da nisan watsawa na DWDM na'ura mai ɗaukar nauyin raƙuman raƙuman raƙuman ruwa ya zarce na CWDM na'urori masu yawa.

(3) Modulated Laser na CWDM zangon rabo multixing kayan aiki da DWDM ragargaje rabo multixing kayan aiki

Tsarin CWDM maɓalli na raƙuman raƙuman raƙuman ruwa yana da ƙananan buƙatu akan alamun fasaha na laser, kuma gabaɗaya yana amfani da Laser mara sanyi; Tsarin DWDM zangon maɓalli mai yawa kayan aiki yana buƙatar amfani da Laser mai sanyaya, kuma Laser mai sanyaya yana ɗaukar hanyar daidaita yanayin zafi don tabbatar da cewa tsarin DWDM yana da mafi kyawun aiki, aminci mafi girma da rayuwar sabis mai tsayi, don haka DWDM raƙuman raƙuman raƙuman ruwa yana cinye ƙarin makamashi. fiye da CWDM raƙuman raƙuman raƙuman ruwa mai yawa kayan aiki ta amfani da lasers marasa sanyi

(4) Kudin CWDM na'ura mai ɗaukar nauyi na raƙuman raƙuman raƙuman raƙuman ruwa da DWDM na'urori masu yawa

Tsarin DWDM na rarraba maɓalli mai yawa yana da rarrabawar zafin jiki mara daidaituwa a cikin kewayon tsayin tsayi mai tsayi, don haka lokacin da ake amfani da fasahar Laser mai sanyaya don daidaita yanayin zafin jiki, ƙimar amfani da tsarin DWDM na rarraba maɓalli mai yawa yana ƙaruwa. Bugu da ƙari, tsarin DWDM na'ura mai ɗaukar nauyin raƙuman raƙuman raƙuman ruwa yawanci yawanci sau huɗu zuwa sau biyar ya fi tsada fiye da tsarin CWDM na'urori masu yawa na raƙuman raƙuman ruwa. Duk da haka, tare da karuwar shaharar maɓalli masu yawa na tsawon zango (DWDM), farashin kayan gani na DWDM ya kusan 20% -25% ƙasa da na na'urorin gani na CWDM.