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Tumira Kubvunza Kuti Udhaunirodhe Chigadzirwa Chedata Sheet

G.652D vs G.657A2 Single Mode Fiber: Musiyano Mukuru, Kuenzanisa Kwekushanda & Gwaro Rekusarudza Mashandisirwo

2026-07-31
Kusarudza fiber yemhando imwe chete isiriyo kunotungamira mukurasikirwa kwakanyanya kwemaziso, kutadza kugamuchirwa kwepurojekiti, kugadziriswazve kusingakoshi, uye kutambisa mari yekudyara. Kwemakumi emakore, G.652D uye G.657A2 Vave vachitonga mapurojekiti epasi rose e fiber optic, kubva kuma network e long-distance telecom backbone, metro fiber links, data center cables kusvika kuFTTH fiber-to-the-home deployment. Vazhinji vema procurement managers, ma field mainjiniya nevagadziri ve network vanogara vachisangana nekuvhiringidzika kwakafanana: Tinofanira kuisa rini G.652D fiber? Ndezvipi zviitiko zvinoda G.657A2 bend-insensitive fiber? Mhando mbiri idzi dze fiber dzinogona kusanganiswa pamwe chete muma hybrid networks here?
Zvinyorwa zvakawanda zvepaindaneti zvinongoratidza chete ma parameter ekutanga ehunyanzvi pasina kugadzirisa matambudziko chaiwo einjiniya: kudzikira kwechiratidzo chisingatarisirwi kunokonzerwa nekukombama kwakasimba, kuwanda kwemutengo nekuda kwehuwandu hwema specification, njodzi dzekuenderana mu mixed fiber links, uye dhizaini isina kunaka yetambo zvichikonzera kusagadzikana kwenguva refu kwenetwork. Gwaro iri rakazara rinoenzanisa G.652D neG.657A2 zvichibva pane zvinodiwa zvepamutemo zveITU-T, ruzivo rwekuvaka mumunda, mutengo wezvose zvevaridzi (TCO), uye nzvimbo dzakakodzera dzekuisa, zvichibatsira vashandi veindasitiri kuita sarudzo dzekusarudza fiber dzinotungamirirwa nedata uye kudzivirira zvikanganiso zvinodhura zveinjiniya.
g652d.jpg

1. Tsananguro Yekutanga & Nhoroondo Yakajairika yeITU-T

1.1 ITU-T G.652D Fiber

ITU-T G.652D inorongwa sefiber yemhando imwe chete isina kupararira zvakanyanya pasi rose. Ndiyo fiber yemhando imwe chete inonyanya kushandiswa pasi rose, yakagadziridzwa pasi pekurudziro yeITU-T G.652. G.652D inobvisa peak yekunyudzwa kwemvura iri pedyo ne1383 nm, zvichiita kuti ikwanise kutumirwa zvakanaka kuburikidza nemabhendi ekutaurirana eO, S, C, L (1260 nm ~ 1625 nm).
Kubva payakatanga kutengeswa, G.652D yave iri faibha yakajairika yekufambisa ducts dzekunze, tambo dzemusana dzakavigwa zvakananga uye dzemudenga. Ine stable attenuation coefficient, tekinoroji yekugadzira yakakura, inoenderana nemidziyo yese yekare yekutumira optical, uye mitengo yakawanda inokwikwidzana. Zvisinei, muganhu wayo mukuru uri mukunzwa kurasikirwa kwe macro-bending uye micro-bending.

1.2 ITU-T G.657A2 Fiber

G.657A2 ndeyemhuri yeG.657 ye single-mode fibers isinganzwisisike inokotama inotsanangurwa neITU-T. Chinhu chakakosha chehunyanzvi: G.657A2 inoenderana zvizere nezvinodiwa zvese zveG.652D zvemazisoNemamwe mashoko, G.657A2 inogara nhaka zviratidzo zvese zveG.652D zvekufambisa uku ichiwedzera kugona kwakanyanya kwekudzivirira kukotama.
Muyero weG.657 unopatsanura mafiber asingapindike muzvikamu zviviri: Chikamu A (chinoenderana neG.652D) neChikamu B (chisingapindike zvakanyanya). G.657A2 inotsigira nharaunda yekukombama ye7.5 mm, ichipfuura G.657A1 (10 mm yekukombama zvishoma). Vagadziri vanogadzirisa fiber refractive index profile kuti vabate simba rechiedza mukati memukati, vachidzivirira kubuda kwechiedza kana fiber yakakombama zvakanyanya. Dhizaini iyi inoita kuti G.657A2 ive fiber inofarirwa yekubatanidza waya dzemukati dzakasimba, tambo dzekudonhedza dzeFTTH uye tambo dzedata dzepakati pehukuru.

2. Kuenzanisa kweCore Technical Parameter

Tafura iri pazasi inoratidza zvakakosha zvinokanganisa zvakananga mashandiro einjiniya:
Paramita G.652D G.657A2 Mhedzisiro Inoshanda
Dunhu repakati rakatarwa rinokombama 30 mm (mamiriro ekuyedza akajairwa) 7.5 mm G.652D inokonzera kurasikirwa kwakanyanya kana yakakotama pasi pe30 mm; G.657A2 inoramba ichirasikirwa zvishoma kana yakakotama zvakanyanya
MFD @1550 nm 9.2 ±0.4 μm 8.8~9.2 μm Musiyano mudiki weMFD unokonzera kurasikirwa kudiki kwekubatanidza ma hybrid connections
Kureba kwewavelength yetambo ≤1260 nm ≤1260 nm Yakanyatsoenderana, inoita kuti mashandiro emodhi imwe chete ashande mumabhendi ese ekutaurirana
Kudzikiswa kwakajairika @1550nm ≤0.20 dB/km ≤0.21 dB/km Kushanda kwekutumira ma "long distance" kwakafanana
Kurasikirwa kweMacro-kotama (1550nm) Kurasikirwa kukuru pasi pekukombama kwakasimba Kurasikirwa kwakanyanya kwekuwedzera pakukombama kwe7.5mm Musiyano mukuru wekushanda pakati pemhando mbiri dzefaibha
Chiyero chePMD ≤0.2 ps/√km ≤0.2 ps/√km Inotsigira kutapurirana kwe10G, 40G, 100G kwemafiber ese ari maviri
Kufukidzwa kwebandwidth Bhendi reO/S/C/L Bhendi reO/S/C/L Kuwanikwa kwespectrum yakaenzana
Zvakakosha kugadzirisa kusanzwisisana kwakapararira muindasitiri: G.657A2 HAISI "iri nani pane G.652D mumamiriro ese ezvinhu". Kugadziriswa kwayo kwechimiro chekudzivirira kukotama kunounza mutengo mudiki wekugadzira. Kuisa G.657A2 munzvimbo dzakatwasuka dzemusana dziri kure dzine makombama mashoma hazvidiwi uye kunowedzera mutengo wepurojekiti.

3. Misiyano mikuru: Marwadzo Anowanikwa Mumapurojekiti Echokwadi

3.1 Kushanda Kusingakotame (Zvakanakira Zvikuru zveG.657A2)

Kurasikirwa kukuru kwe macro-komberedzwa ndicho chikonzero chikuru chekukundikana kwemapurojekiti e fiber optic. Kana fiber ye G.652D ikamanikidzwa kupinda mumakona akamanikana, matireyi madiki e cable, mabhokisi e compact optical distribution, sharp conduit turns, simba rechiedza rinobuda mu fiber core, zvichikonzera kuwedzera kwe optical attenuation. Muzviitiko zvakakomba, kuongororwa kweOTDR kunoratidza zviitiko zvisina kujairika zvekurasikirwa, zvichikonzera kusagamuchirwa kweprojekiti.
Mitemo yekuvaka inoda G.652D permanent bend radius ≥30 mm, construction temporary being bend radius ≥15 mm. Mukugadzirisa kwakawanda kwemukati meimba, muzviitiko zveFTTH zvekugara, chinodiwa ichi chakaoma kugutsa. Vavaki vanowanzo dzvanya fiber mumigero yakamanikana yemadziro, vogadzira tight coils mukati memabhokisi eODF akaiswa pamadziro. Kushandisa G.652D munzvimbo dzakadaro kunoita kuti network isashande zvakanaka iyo inoonekwa mwedzi mishoma mushure mekupedzwa.
Kusiyana neizvi, G.657A2 inogona kutsungirira kukotama kakawanda pa7.5 mm radius nekurasikirwa kwakawedzerwa. Mainjiniya emumunda anoshivirira kuvaka zvakanyanya. Kurongeka kwakaoma, kutenderera kakawanda, kutenderera kwakamanikana kwekabati hakuchaiti kuti zviratidzo zvikanganise. Izvi zvinoderedza zvakanyanya mari yekugadzirisa matambudziko mushure mekuisa.

3.2 Kureba Kwekutumira & Kukodzera Kwekufamba Kurefu

Munzvimbo dziri kure dzekunze (kubva muguta kuenda kuguta, metro core links, kureba kwayo kunodarika 20 km), G.652D ndiyo inoramba iri sarudzo huru. Kushanda kwayo pakudzikamisa tambo kwakanyanya kunaka, uye kugadzirwa kwayo kwakawanda kunoderedza mutengo wetambo pakiromita imwe neimwe. Sezvo tambo dzemusana dzichiiswa mumaducts kana munzira dzemudenga dzine makombama akarongwa, akapfava, hapana chikonzero chefiber isingakanganise makombama.
G.657A2 inogona kutsigira kutakurwa kwemagetsi kure, asi mari yekuwedzera yefiber inoita kuti mapurojekiti asave emari yakawanda. Vatengi vazhinji vanogadzirisa tambo dzese dzemusana kuita G.657A2 zvisirizvo, zvichikonzera kurasikirwa nemari.

3.3 Kuenderana & Kubatana Pakati peG.652D neG.657A2

Mubvunzo unowanzo bvunzwa: G.652D inogona kubatana neG.657A2 muchikamu chimwe chete che optical here?
Mhinduro: Ehe, kusanganisa simbi dzemhando yehybrid kunotenderwa, asi mainjiniya anofanira kudzora kurasikirwa kwekubatanidza simbi.
Nekuda kwemusiyano mudiki mudhayamita yemunda wemode, ma parameter asina kunaka e splicing anogona kukonzera kurasikirwa kwekuisa pamusoro pe 0.3dB. Mazano akanakisa ekushandisa:
  1. Shandisa ma "fusion splicers" ane ma "G.657 fiber splicing profiles" akatsaurirwa;
  2. Kuedza kweOTDR kwakazara pa1310nm ne1550nm mushure mekusanganisa;
  3. Dzivisa nzvimbo dzakawanda dzinochinjana pakati peG.652D neG.657A2 pane imwe link.
Kurongeka kwehybrid kwakajairika muma network ekusvika: G.652D yetambo dzekudyisa dzekunze, uye G.657A2 inodonhedza tambo kubva kunzvimbo dzekugovera kuenda kunzvimbo dzevatengi. Dhizaini iyi yehybrid inoenzanisa mutengo uye mashandiro ekukotama, ayo anoshandiswa zvakanyanya nevashandi vefoni pasi rose.

3.4 Mutengo & Hupfumi hweProject Hwese

Fiber yeG.657A2 isina kugadzirwa ine mutengo wepamusoro kana tichienzanisa neG.652D yakajairwa. Kune mapurojekiti makuru ekunze ane makiromita akawanda efiber, musiyano wemutengo unoungana zvakanyanya.
Zvisinei, ongororo yemitengo haingotarise chete pamutengo wefaibha isina kugadzirwa. Tinofanira kuongorora huwandu hwemari yekuva muridzi:
  • Kana ikashandiswa munzvimbo dzine makomba akawanda mukati meimba: G.657A2 inodzivirira kugadziriswa patsva, inoderedza njodzi yekukundikana kwekuvaka, inoderedza mari yekushandisa kwenguva refu nekugadzirisa. Mutengo wefaibha wakakwira pakutanga unonzwisisika.
  • Nzira dzakatwasuka dzekunze: G.652D inoita basa rakafanana rekutumira zvinhu nekushandisa zvinhu zvishoma.

4. Maitiro Ekushandisa Anokurudzirwa

Nguva Yekusarudza G.652D Fiber

  1. Tambo dzenhare dzinofamba kure, tambo dzemetro feeder (duct, direct buried, aerial GYTA, GYTS, GYFTY cables);
  2. Mitsetse yeBroadband yekumaruwa, musana wekunze wepamusasa, kutarisa ma fiber links ari kure nemugwagwa;
  3. Mapurojekiti ane nzira yakatwasuka, makomba etambo akajairwa, nzvimbo yakakwana yekukombama;
  4. Mapurojekiti makuru ezvivakwa anoenderana nebhajeti yezvinhu.

Nguva Yekusarudza G.657A2 Fiber

  1. Tambo dzekudonhedza dzeFTTH, tambo dzemudenga dzinokwidza zvinhu, waya dzemumba, network dzekugovera magirazi ezvivakwa zvekugara;
  2. Matambo emakabati ane huwandu hwakawanda pakati pedata, tambo dzechigamba, waya dzakamira nedzakatwasuka;
  3. Mapurojekiti ekugadzirisa zvivakwa ane migero midiki, makona akawanda, nzvimbo shoma yekuisa;
  4. Kutarisa kuchengetedzeka mukati mezvivakwa, tambo dzekufambisa dzeelevator, waya dzemukati dzemidziyo yeindasitiri;
  5. Masangano efiber akapera kare, mabhokisi emagetsi e optical anoda kuvharwa kwefiber yakakora.

5. Njodzi Dzinowanzoitwa Muindasitiri Dzekudzivirira

Dambudziko 1: Shandisa G.657A2 zvakaenzana patambo dzese

Vatengi vazhinji vanoita kuti kutenga kuve nyore nekutenga G.657A2 chete pabasa rese. Kunyangwe zvichikwanisika, izvi zvinowedzera mari yetambo dzekunze dzinofamba kwenguva refu pasina matambudziko ekukombama. Mhinduro yakagadziriswa: Dhizaini yenetiweki yeHybrid: G.652D yekudyisa kunze + G.657A2 tambo yemukati/yekudonhedza.

Dambudziko rechipiri: Tsiva G.657A2 neG.652D yakachipa muwaya dzemukati

Vamwe vatengesi vanoderedza mari nekuisa G.652D panzvimbo peG.657A2 tambo dzemukati. Mushure mekuvaka, vatengi vanosangana neinternet isina kugadzikana, kurasikirwa nemapaketi, simba remagetsi rinochinja-chinja. Kuongororwa kwezvikanganiso kwakaoma nekuti matambudziko ekudzikira kwefiber anongoonekwa chete kana fiber yagadziriswa mukati memadziro kana mapombi. Kutsiva kunoda kuvakwa kunoparadza, kurasikirwa kukuru. Vatengi vanofanirwa kukumbira mishumo yekuyedza fiber kuti vaone zviratidzo zvekudzikira kwefiber vasati vatumira.

Dambudziko rechitatu: Usafuratira zvinodiwa zveG.652D panguva yekuvaka

Kunyangwe netambo yeG.652D yepamusoro-soro, kuiswa kusina kunaka kwakadai sekukombama kwakapinza, tambo dzakasimba, kumonera zvidimbu zvidiki zvinokanganisa kushanda kwetambo zvachose. Vatariri vemunda vanofanira kusimbisa zvinodiwa zvema "bend radius" mashoma.

Dambudziko rechina: Kuregeredza kutarisirwa kwekurasikirwa kwe splicing pane hybrid fiber links

Kuchinjana kwakawanda pakati peG.652D neG.657A2 stack insertion loss, zvichiita kuti pave nekupfupika kwenzvimbo yekutumira zvinhu. Vagadziri venetwork vanofanira kuderedza ma hybrid splice points pese pazvinogoneka.

6. Pfupiso & Rondedzero Yekupedzisira Yekusarudza

G.652D naG.657A2 hazvisi nzira dzekukwikwidzana apo imwe inoshanda kupfuura imwe. Kusarudzwa kwakakodzera kunoenderana nehurongwa hwenzira, nzvimbo yekuisa, mamiriro ekukombama uye bhajeti yepurojekiti.
Rondedzero Yekusarudza Nekukurumidza:
Mutsipa wekunze uri kure, nzira iri nyore → G.652D
Waya dzemumba, tambo yekudonhedza yeFTTH, makona akamanikana, makabati madiki → G.657A2
Network yekusvika yakasanganiswa: feeder yekunze + tambo yemushandisi yemukati → Kurongeka kwehybrid (G.652D + G.657A2)
Nzvimbo shoma yekukombama, mainjiniya ekugadzirisa akaomarara → Isa G.657A2 pamberi
Zvivakwa zvematura makuru zvine kudzora mitengo zvakanyanya → Isa G.652D pamberi
Sezvo kudiwa kweFTTH pasi rose, kuwedzera kwe edge computing uye data center kuri kuramba kuchikwira, mainjiniya e fiber optic acharamba achishandisa mhando dzese dze fiber. Kunzwisisa muganhu wehunyanzvi pakati peG.652D neG.657A2 kunobvisa zvikanganiso zve specification, kunovandudza kuvimbika kwe network uye kunogadzirisa mari inoshandiswa.

Chikamu cheMibvunzo Inowanzo bvunzwa (Zvidimbu zveGoogle & Kufamba Kwemuswe Murefu)

Mubvunzo wekutanga: G.657A2 inogona kushandisa 100G/400G transmission zvakafanana neG.652D here?

A1: Ehe. G.657A2 inosangana nezvinodiwa zvese zveG.652D, ichitsigira 10G, 40G, 100G coherent transmission pasi pemiganhu yakafanana yekureba.

Mubvunzo wechipiri: Musiyano uripo pakati peG.657A1 neG.657A2 ndeupi?

A2: G.657A1 inokombama zvishoma 10 mm; G.657A2 inosvika 7.5 mm, zvichiita kuti pave nekushanda kwakanaka kunodzivirira kukotama kuti pave nenzvimbo yakamanikana yakaoma.

Mubvunzo wechitatu: Ko G.657A2 ine kurasikirwa kukuru kwechiratidzo kupfuura G.652D munzira dzakatwasuka here?

A3: Kana zvinhu zvakatwasuka, zvisingakotame, musiyano wekudzikira kwesimba haunyanyi kukosha (pasi pe0.01 dB/km). Mukana wekurasikirwa unongoonekwa chete kana zvinhu zvanyatsokotama.

Mubvunzo wechina: Ndingashandisa faibha yeG.652D here patambo dzechigamba dzemukati meimba?

A4: Hazvikurudzirwi. Tambo dzechigamba dzinowanzo kuputirwa mukati memaraki. Kukotama kudiki kuchaita kuti pave nekurasikirwa kwakanyanya, zvichikanganisa kugadzikana kwesystem.

Taura Nesu, Wana Zvigadzirwa Zvemhando Yepamusoro uye Basa Rekungwarira.

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