Phapano ke efe lipakeng tsa OM le OS2 fiber optic cables?

Lithapo tsa fiber optic li bapala karolo ea bohlokoa meahong ea likhokahano tsa mehala, ho na le mefuta e 'meli ea likhoele tse tloaelehileng tsa fiber optic 'marakeng. E 'ngoe ke ea mofuta o le mong 'me e' ngoe ke thapo ea fiber optic ea mefuta e mengata. Hangata li-multi-mode li hlophisoa ka "OM(Optical multi-mode fiber)" 'me mokhoa o le mong o hlomamisitsoe ka "OS(Optical single-mode fiber)".

Ho na le mefuta e mene ea mefuta e mengata: OM1, OM2, OM3 le OM4 le Single-mode e na le mefuta e 'meli ea OS1 le OS2 ho litekanyetso tsa ISO/IEC 11801. Phapano ke efe lipakeng tsa likhoele tsa OM le OS2 fiber optic? Se latelang, re tla hlahisa phapang pakeng tsa mefuta e 'meli ea likhoele.

1.Phapang ka bophara ba mantlhale mefuta ea fiber

Lithapo tsa mofuta oa OM le OS li na le phapang e kholo ka bophara ba mantlha. Multi-mode fiber core bophara ke 50 µm le 62.5 µm ka tloaelo, empa OS2-mode e le 'ngoe bophara ba mantlha ke 9 µm.

Optical Fiber Core Diameters

Mefuta ea fiber

    

 

2.Phapang ea ho fokotsoa

Ho fokotseha ha thapo ea OM ho phahame ho feta thapo ea OS, ka lebaka la bophara bo boholo ba mantlha. Cable ea OS e na le bophara bo moqotetsane ba mantlha, kahoo lets'oao le khanyang le ka feta ka har'a faeba ntle le ho bonts'oa hangata mme le boloke ho fokotseha ho le tlase. Empa thapo ea OM e na le bophara bo boholo ba fiber core ho bolelang hore e tla lahleheloa ke matla a mabone a eketsehileng nakong ea phetiso ea lets'oao la leseli.

 

3. Phapang ka bohole

Sebaka sa phetisetso ea fiber ea mofuta o le mong ha e ka tlase ho 5km, eo hangata e sebelisetsoang mohala oa puisano o hole; athe fiber ea mefuta e mengata e ka fihla feela hoo e ka bang 2km, 'me e loketse puisano ea sebaka se khuts'oane mehahong kapa likampong.

Mofuta oa fiber		Sebaka
		100BASE-FX	1000BASE-SX	1000BASE-LX	1000BASE-SR	40GBASE-SR4	100GBASE-SR10
Mokhoa o le mong	OS2	200M	5KM	5KM	10KM	-	-
Mekhoa e mengata	OM1	200M	275M	550M (E hloka thapo ea patch ea boemo bo holimo)	-	-	-
	OM2	200M	550M		-	-	-
	OM3	200M	550M		300M	100M	100M
	OM4	200M	550M		400M	150M	150M

 

4. Phapang ea wavelength & Mohloli oa Leseli

Bapisa le thapo ea OS, thapo ea OM e na le bokhoni bo betere ba "ho bokella leseli". Mokotla o moholo oa fiber o lumella tšebeliso ea mehloli ea leseli e theko e tlaase, joaloka li-LED le VCSEL tse sebetsang ho 850nm le 1300 nm wavelengths. Ha thapo ea OS e sebetsa haholo ho 1310 kapa 1550 nm wavelengths e hlokang mehloli ea laser e turang ho feta.

5. Phapang ho bandwidth

Cable ea OS e ts'ehetsa mehloli e khanyang le ho feta ea mabone a nang le matla a tlase, e fana ka bandwidth e se nang moeli. Le ha thapo ea OM e its'etleha phetisong ea mefuta e mengata ea leseli e nang le khanya e fokolang le ho fokotsa matla ho fanang ka moeli ho bandwidth.

6. Phapang ka sheath ea mebala ea cable

Sheba tlhaloso e tloaelehileng ea TIA-598C, thapo ea OS e nang le mofuta o le mong hangata e koahetsoeng ka baki e ka ntle e mosehla, ha thapo ea mefuta e mengata e tlositsoeng ka 'mala oa oragen kapa oa aqua.