Menene bambanci tsakanin OM da OS2 fiber optic igiyoyi?

Fiber optic igiyoyi suna taka muhimmiyar rawa a cikin gine-ginen hanyoyin sadarwar sadarwa, akwai nau'ikan igiyoyin fiber optic iri biyu na gama gari a kasuwa. Daya ne guda-mode da wani daya ne Multi-mode fiber optic na USB. Yawancin lokaci Multi-yanayin ana prefixed tare da "OM (Optical Multi-mode fiber)" da kuma guda-yanayin an prefixed da "OS (Optical single-mode fiber)".

Akwai nau'ikan yanayi guda huɗu: OM1, Om2, OM3 da OM4 da kuma yanayin guda ɗaya suna da nau'ikan nau'ikan OS1 da OS2 a cikin ISO / IEC 11801 matakan. Mene ne bambanci tsakanin OM da OS2 fiber optic igiyoyi? A cikin gaba, za mu gabatar da bambanci tsakanin nau'ikan igiyoyi biyu.

1.Bambanci a cikin core diamitada nau'in fiber

OM da nau'in igiyoyi na OS suna da babban bambanci a cikin diamita na tsakiya. Multi-yanayin fiber core diamita ne 50 µm da 62.5 µm yawanci, amma OS2 guda-mode na hali core diamita ne 9 µm.

Fiber Core Diamita

Nau'in fiber

    

 

2.Bambancin attenuation

Attenuation na OM na USB ya fi OS na USB, saboda girma core diamita. Kebul na OS yana da kunkuntar core diamita, don haka siginar haske na iya wucewa ta fiber ba tare da nuna alama zuwa sau da yawa ba kuma yana kiyaye anuation zuwa ƙarami. Amma kebul na OM yana da diamita mafi girma na fiber core wanda ke nufin zai rasa ƙarin ƙarfin haske yayin watsa siginar haske.

 

3. Bambancin nisa

Nisan watsawa na fiber-mode guda bai wuce 5km ba, wanda galibi ana amfani dashi don layin sadarwa mai nisa; yayin da Multi-mode fiber zai iya kaiwa kusan kilomita 2 kawai, kuma ya dace da sadarwar gajeriyar hanya a cikin gine-gine ko harabar.

Nau'in fiber		Nisa
		100BASE-FX	1000BASE-SX	1000BASE-LX	1000BASE-SR	40GBASE-SR4	100GBASE-SR10
Yanayin guda ɗaya	OS2	200M	5km	5km	10km	-	-
Multi-yanayin	OM1	200M	275M	550M (Buƙatar igiyar kwandishan yanayin yanayi)	-	-	-
	OM2	200M	550M		-	-	-
	OM3	200M	550M		300M	100M	100M
	OM4	200M	550M		400M	150M	150M

 

4. Bambanci a tsayin raƙuman ruwa & Hasken Haske

Idan aka kwatanta da kebul na OS, kebul na OM yana da mafi kyawun ƙarfin “haske-taro”. Babban girman fiber core yana ba da damar amfani da maɓuɓɓugan haske masu rahusa, kamar LEDs da VCSELs masu aiki a tsawon 850nm da 1300nm. Yayin da kebul na OS ya fi aiki a 1310 ko 1550 nm tsayin raƙuman ruwa wanda ke buƙatar mafi tsada hanyoyin laser.

5. Bambancin bandwidth

Kebul na OS yana goyan bayan mafi haske da ƙarin tushen hasken wutar lantarki tare da ƙananan ƙarancin ƙima, yana ba da ƙayyadaddun bandwidth mara iyaka. Yayin da kebul na OM ya dogara da watsa nau'ikan haske da yawa tare da ƙarancin haske da haɓaka mafi girma wanda ke ba da iyakancewa akan bandwidth.

6. Bambanci a cikin kullin launi na USB

Koma zuwa TIA-598C daidaitaccen ma'anar, kebul na OS guda ɗaya-yanayin yawanci ana rufe shi da jaket na waje mai launin rawaya, yayin da kebul mai nau'i-nau'i da yawa mai rufi tare da launi na orange ko ruwan ruwa.