GJXFH, GJXH, GJYXCH: Mokhoa oa ho khetha Cable e nepahetseng ea FTTH Drop bakeng sa Morero oa Hau

Morekisi oa hau o sa tsoa qotsa linomoro tse hlano tse fapaneng tsa mohlala oa li-cable - GJXFH, GJXH, GJYXCH, GJYXFCH, GJFJU. U hloka ho araba potso e le 'ngoe pele PO e ka falla: ke efe eo morero ona o e hlokang?

Tataiso ena e ngoletsoe motho ea etsang qeto eo. E tlola sehlahisoa sa "fiber drop drop cable" ke eng (e phelang ka hara rona Fiber Optic Drop Cable Guide) mme e fihla ka kotloloho ho khetho ea boemo ba mohlala.

Haeba u reka ho phatlalatsoa ha FTTH, rekisa lithapo tse theohang ho li-ISP tsa libaka, kapa ho li tšoaea ho moralo oa projeke, u tla qeta sena ka mor'a metsotso e ka bang leshome 'me u tsamaee ka khetho e sireletsehileng ea mohlala.

Seo Litlhaku tsa GJXFH Ha e le hantle li se Bolelang

Likhoutu tsa mohlala oa li-cable tsa China li latela YD/T 1258 telecom standard. Hang ha u ithuta mokhoa, lebitso le leng le le leng la mohlala la kamoso le baleha joalo ka letlapa le itseng:

Lengolo	Tlhaloso	Seo e u bolellang sona ka thapo
G	Puisano-sebelisa thapo ea optical	Ke thapo ya telecom optical, eseng koporo kapa lebasetere la matla
J	Tšebeliso ea ka tlung (joalo ka sehlongoapele)	E etselitsoe haholo-holo ho romelloa ka tlung
Y	Tšebeliso ea kantle (joalo ka sehlongoapele)	E etselitsoe maemo a kantle
X	Mofuta oa seqha / serurubele cross-section	The flat, setšoantšo se ts'oanang le boemo ba borobeli
F	Setho sa matla (e itshetlehileng ka maemo)	Sheba tlhokomeliso e ka tlase
C	Ho itšehetsa ka lenqosa le kopaneng	E na le tšepe e ka hare kapa terata ea FRP e ka bolokang nako ea eona
H	Selatla (joalo ka suffix)	E tšoaea bokantle ba baki
J (bohareng ba khoutu, mohlala. GJFJU)	Aramid / Karolo ea matla ea KFRP	Matlafatso a senang tšepe ka botlalo
U	E seng tšepe	Ha ho na tšepe kae kapa kae karolong e ka holimo

Ho bala holimo ho isa tlase:

• GJXFH = thapo ea mofuta oa seqha ea ka tlung e nang le setho se matla le sheath ea LSZH
• GJXH = thapo ea mofuta oa seqha ka tlung e nang le setho sa matla a tšepe le sheath ea LSZH (ha ho "F" ka mabitso a khale, e teng likopanong tse ncha)
• GJYXCH = thapo e itšebetsang ka ntle ea seqha e nang le lenģosa la tšepe
• GJYXFCH = thapo e itšebetsang ka ntle ea seqha e nang le sebopeho se thehiloeng ho FRP
• GJFJU = thapo ea ka tlung e se nang tšepe ka botlalo e nang le litho tse matla tsa aramid

Tlhokomeliso ka mabitso a mohlala

Mona ke ntho eo ha ho na tataiso e 'ngoe ea ho reka e tla u bolella: tlhaku "F" ho GJXFH ha e hlalosoe ka mokhoa o tsitsitseng ho pholletsa le setsi sa tlhahiso ea China. Lifeme tse ling li e sebelisa ho bolela FRP (e senang tshepe) litho tsa matla. Ba bang ba e sebelisa e le letšoao la "generic" bakeng sa "matlafatsi" mme ba ntse ba romella thapo ka terata ea tšepe kahare..

Re bone liphetolelo ka bobeli tšimong. Mohala oa ho theoha o ngotsoengGJXFH ka ntle ho ka fihla le a 0.5 mm phosphated tšepe terata joalo ka setho sa eona se matla. Seo ha se sekoli - ke mokhoa oa ho reha mabitso o bileng teng ka lilemo, haholo-holo har'a li-OEM tse mahareng.

Tlhahlobo ea 'nete ea Moreki:
Le ka mohla u se ke ua amohela nomoro ea mohala e theohang u le mong. Netefatsa kamehlamatla thepa ya setho lethepa ea baki ka ho ngoloa ho PO kapa database. Barekisi ba babeli ba ka u qotsa "GJXFH" mme ba romela lihlahisoa tse fapaneng tsa 'mele. Letlapa ke 'nete. Khoutu ea mohlala ke leseli.

Tšepe, FRP, kapa Aramide: Khetha Setho se Matla Pele ho Nomoro ea Mohlala

Hang ha u tseba malapa a mararo a litho tse matla, nomoro ea mohlala e batla e ikhethela. Mona ke se fetohang ho pholletsa le lisebelisoa tse tharo:

Thepa	Terata ea tšepe (phosphated / galvanized)	FRP (Plastiki e Matlafalitsoeng ke Fiber)	Aramid / KFRP
Matla a tšepe (tloaelehileng)	E phahameng ka ho fetisisa bakeng sa bophara bo fanoeng	Mahareng-hodimo	Phahameng, haufi le tshepe ka boima
Boikhantšo	Tšepe e tsamaisang	Dielectric e se nang conductive	Dielectric e se nang conductive
Botenya / Fibconet	E boima ka ho fetesisa	Leseli	E bobebe ka ho fetesisa
Lenane la litšenyehelo (mong ka)	1.0 (motheo)	~ 1.15–1.30	~ 1.6–2.2
Mokhathala o kobehang	E ka holofala ka polasetiki haeba e kobehile ka thata	E mamella, e hlaha morao	E kgabane, tšebeliso e phahameng ea fiber
Boitšoaro ba boemo ba leholimo bo batang	E tsitsitseng	Brittle ka sub-zero e feteletseng haeba e le maemong a tlase	E tsitsitseng ho pholletsa le mefuta e mengata
Boitšoaro ba mollo ka baki ea LSZH	Mesalla ea tšepe ka mor'a ho chesa	Mocheso o hloekileng	Mocheso o hloekileng
Mohlala o tloaelehileng oa tšebeliso	Matlo a FTTH a fetisitsoeng, bodulo bo otlolohileng, merero e tsamaisoang ke litšenyehelo	Ditikoloho tsa ka tlung tse senang tshepe, meaho e kopaneng ea EMI	Likarolo tsa kantle tsa dielectric ka botlalo, lithapo tsa lifti, likamore tsa MRI sepetlele, li-deployments tse khethehileng

Fisiks eo u hlileng u hlokang ho e hopola

Fiber ea optical e fetisetsa data e le leseli ka mokokotlo oa khalase. Ts'ebetso eo keha e le hantle ha e na tšitiso ea motlakase - 'nete eo u ka e qotsang ho moreki ofe kapa ofe ea tšoenyehileng ka "lerata" mohala o tsoang ho li-motor tse haufi, li-transformer, kapa lifti. Leseli ha le tsotelle tikoloho ea EMI.

Empa mohala o potileng fiber ke pale e fapaneng.

Haeba mohala o theoha o sebelisa asetho sa matla a tshepe, tšepe eo ke conductor. Tlas'a letolo le haufi le haufi, ketsahalo e nang le matla a phahameng a matla, kapa e matla ea nakoana moleng o bapileng oa AC, karolo ea tšepe ka har'a thapo ea hau ea lerotholi e ka nka hona joale. Ha lipheletso ka bobeli tsa thapo eo li emisa haufi le lisebelisoa tsa elektroniki tse sebetsang (ON ka lapeng, phanele ya kabo sebakeng se kampetsoeng), hona joale ho na le tsela ea ho ea fatše - ka lisebelisoa tsa hau.

Ke ka lebaka lena li-installers libakeng tse nang le lehalima, haufi le liphaseje tse nang le motlakase o mongata, kapa haufi le liteishene tse nyane hangata li bolelalithapo tse sa thekeseleng tsa tšepe (Mefuta e fapaneng ea FRP kapa KFRP). Ts'ebetso ea optical ha e fetohe. Boemo ba kotsi bo etsa joalo.

Tlhahiso ea Pro bakeng sa bareki:
Haeba moreki oa hau a le lebanta la monsoon Asia Boroa-bochabela, haufi le phasejeng ea phetiso ea matla a maholo a mahaeng, Lehoatateng la Middle East le nang le sefefo se matla sa lerōle, kapa ho hlalosa sepetlele / seteishene / Morero oa MRI, ba botse potso e le 'ngoe feela: "Na ho na le thapo e sa theoleheng ea tšepe e hlokahalang kapa ea ratoa?" Potso e le 'ngoe e fokotsa mehlala e mehlano ho ea ho tse peli.

GJXFH - The Indoor Bow-Type Workhorse

GJXFH ke seo liphatlalatso tse ngata tsa FTTH li se kenyang lipakeng tsa lebokose la kabo ea moaho le ONT ea ba ngolisitseng.. E etselitsoe maemo a ka hare: maemo a tsitsitseng a mocheso, litsela tse sirelelitsoeng, matla a ho hula a itekanetseng nakong ya ho kenya qalong.

Lethathamo le tloaelehileng la 1-fiber GJXFH (e ipapisitse le tlhahiso ea 'nete ea tlhahiso):

Paramethara	Boleng
Palo ea fiber	1 (hape 2 / 4-liphetolelo tsa mantlha)
Mofuta oa fiber	G.657.A2 mokhoa o le mong o sa utloeng bohloko
Attenuation @1310 nm	≤ 0.4 dB/km
Attenuation @1550 nm	≤ 0.3 dB/km
Ho lahleheloa ke macro-bending @1625 nm, 7.5 mm × 1 reteleha	≤ 1.0 dB
Litekanyo tsa baki	3.0 × 2.0 mm (LSZH, botsho kapa bosweu)
Setho sa matla	0.5 mm (tšepe kapa FRP, netefatsa ka PO)
Boima ba nako e telele	40 N
Moroalo oa nako e khuts'oane	80 N
Min. kobeha radius (mahlahahlaha / e tsitsitseng)	30 mm / 15 mm
Mocheso oa ho sebetsa	-40 ho +70 °C
Mocheso oa polokelo	-40 ho +70 °C

Ke hobane'ng ha G.657.A2 e le ea bohlokoa ho feta theko ea theko

Lithapo tse peli tse theohang li ka shebahala li tšoana pampiring, e fapane feela $0.02 ka mithara, 'me u ntse u etsa khetho e fapaneng haholo bakeng sa bokamoso ba moreki oa hau.

G.657.A1 e sebetsana le ho kobeha ho itekanetseng empa e theola ka tlase ho ~ 10 mm radius.G.657.A2 - fiber ka hare ho tlhaloso e ka holimo - e tšoara boholo 1.0 dB ea tahlehelo e kholo ea ho kobeha esita le ho 7.5 mm e kobeha radius ho 1625 nm.

Hobaneng ho etsa joalo 1625 taba ea nm? Hobane fensetere eo ea wavelength ke moo tlhahlobo ea marang-rang le bokamosoXGS-PON 10G ntlafatso lipontšo phela. ISP e sebelisang A1 kajeno e kanna ea tobana le thapo e qobelloang e theko e boima ha e ntlafatsa ho 10G FTTH., hobane fiber ea khale e ke ke ea tšoara botšepehi ba pontšo tlas'a mekoloko e tšoanang. Mohala oa A2 ke, ha e le hantle, pholisi ea inshorense e theko e tlaase khahlanong le ntlafatso e latelang ea marang-rang ea mosebeletsi.

Sebaka sa ho bua sa Distributor:
Ha moreki a khutlela ho theko ea hau ea GJXFH hobane mohlodisani o theko e tlase ka $0.03/m., botsa hore na thapo e theko e tlaase e sebelisa boemo bofe ba fiber. Haeba ke A1, u ka bua ka botšepehi: “Seo $0.03 Ho boloka chelete e fetoha litšenyehelo tse felletseng tsa ho kopanya hape ha ba fallela XGS-PON ka mor'a lilemo tse tharo. Bareki ba rekelang basebetsi ba tsotella lipalo tseo.

Ha u sa sebelise GJXFH

Moqapi oa ka hare o bolela tšebeliso ea ka hare. Se ke oa beha GJXFH ka ntle holim'a palo ea sefofane kapa ka nako ea ho itšehetsa. Baki ea LSZH ha e ea etsoa bakeng sa ho pepesehela UV khafetsa, karolo e tšesaane ea sefapano e ke ke ea pholoha leqhoa, 'me ha ho na terata ea lenģosa ho jara boima ba cable ho feta sebaka leha e le sefe.

Haeba moreki a u botsa hore na liphetolelo tsa "GJXFH outdoor" li teng, karabo e tšepahalang ke che. Seo ba se hlokang keGJYXCH kapaGJYXFCH - likhoele tse ka ntle tse nang le lenģosa le kopaneng. Bala pele.

GJXH - Steel-Reinforced Indoor Bow-Type

Hangata GJXH e sebelisoa ka ho fapanyetsana le GJXFH lithathamong tsa bafani ba thepa, mme pherekano ke ya sebele. Palong ea rona ea 'maraka, phapang e sebetsang ke ena: GJXH e lula e tsamaea ka sekepe e nang le setho se matla sa terata ea phosphated le lintlha tse phahameng hanyane ho feta mofuta o tšoailoeng oa FRP..

Lethathamo le tloaelehileng la 2-fiber GJXH:

Paramethara	Boleng
Palo ea fiber	2 (hape 1 / 4-liphetolelo tsa mantlha)
Mofuta oa fiber	G.657.A2 (netefatsa A1 vs A2 ka taelo)
Attenuation @1310 nm	≤ 0.4 dB/km
Litekanyo tsa baki	3.1 × 2.0 mm (LSZH, ntsho)
Setho sa matla	2 × 0.45 terata ea tšepe ea mm phosphated
Boima ba nako e telele	100 N
Moroalo oa nako e khuts'oane	200 N
Min. kobeha radius (mahlahahlaha / e tsitsitseng)	60 mm / 30 mm
Mocheso oa ho sebetsa	-20 ho +60 °C

Phoso e atileng haholo ka GJXH

Re bone litsebi tsa theknoloji li hula GJXH ka li-conduit tsa limithara tse 20, holimo siling voids, kapa ho pholletsa le libaka tse khutšoane tsa moea. Ho e 'ngoe le e' ngoe ea linyeoe tseo, phepelo e ile ea sebetsa ka letsatsi la pele mme ea hlahisa litletlebo tsa bareki likhoeli tse tšeletseng hamorao - li-micro-fractures ka hare ho fiber., ho kokobetsa butle butle, le mohala oa ts'ebeletso ho khutlisa ho matha.

A 100 Tekanyo ea nako e telele ea nako e telele e bolela hore thapo e khona ho boloka boima ba eona le matla a ho hula a itekanetsenghang ha e kentsoe ebile e tsitsitse. Ha ho bolele hore u ka e hulanya 15 limithara tsa kotopo khahlano le khohlano. Haeba sesebelisoa sa hau se hloka matla a ho hula a nang le moelelo, lekanya thapo e lekantsoeng bakeng sa eona - hangata ke GJYXCH ho 300 N nako e telele, esita le bakeng sa phetoho e khutšoanyane ea ka hare ho ea ka ntle.

Boemo ba 'nete ba lefatše:
Moreki oa Afrika Bochabela o tlalehile ho hloleha ha cable ka mor'a likhoeli tse tharo tsa tšebeletso. Sesosa sa ho qala: setsing sa bona se sebelisitse thapo ea ka tlung ea GJXH bakeng sa limithara tse 40 ka har'a kotopo e marulelong hobane e ne e le teng.. Ka sehla se seng sa lipula, baki ea LSZH e ne e monyetse mongobo o lekaneng manonyeletsong a marang-rang ho etsa hore ho be le microbending.. Tokiso e ne e le rework le GJYXCH - le boitsebiso bo ngotsoeng ho PO e 'ngoe le e 'ngoe e tlang.

GJYXCH - Ho Itšehetsa ka Ntle Ho theoha bakeng sa Aerial FTTH

GJYXCH ke pere ea kantle: e etselitsoeng ho tsamaisoa ka sefofane pakeng tsa lipalo tsa lisebelisoa, E etselitsoe ho boloka boima ba eona ho feta bolelele ba limithara tse 80, 'me e koaletsoe ho pholoha UV, ho sisinyeha ha mocheso, le pula e itekanetseng.

Lethathamo le tloaelehileng la 2-fiber GJYXCH:

Paramethara	Boleng
Palo ea fiber	2 (tloaelo ho fihlela ho 12-core)
Mofuta oa fiber	G.652.D kapa G.657.A letoto
Attenuation @1310 nm	≤ 0.36 dB/km
Attenuation @1550 nm	≤ 0.22 dB/km
Litekanyo tsa baki	5.0 × 2.0 mm (LSZH, ntsho)
Sebopeho	Mohala o bataletseng + lenģosa la tšepe le kopaneng, "setšoantšo-8" karohano
Lenģosa la tšepe	1 × 1.0 mm
Litho tsa matla a tšepe (ka lehlakoreng la cable)	2 × 0.4 mm phosphated tšepe
Boima ba nako e telele	300 N
Moroalo oa nako e khuts'oane	600 N
Nako e telele ea sefofane	≤ 80 m
Mocheso oa ho sebetsa	-20 ho +60 °C

Se boleloang ke “ho iphelisa” ha e le hantle

Lentsoe le bohlokoa. Mohala o itšoarellang oa ho theola boima ba oona o na le boima ba oona bo shoeleng hammoho le moea le (libakeng tse batang haholo) boima ba leqhoa, ntle le ho hloka terata e ka thoko e hohlang. Lenģosa le kopantseng ka hare ho GJYXCH ke lona le etsang mosebetsi oo.

Bakeng sa li-spans ho fihlela ho ~ 80 metres moralo ona o sebetsa hantle ebile o theko e tlase. Ka nqane 80 limithara - nahana nako e telele ho tšela litsela, matshediso a dinoka, kapa sefofane sa mahaeng se tsamaea pakeng tsa lipalo tse arohaneng haholo - geometry ea lenģosa ha e sa tšoara sag le tsitsipano e hlokahalang.. Ke hona moo thapo ea ADSS nka sebaka.

Tšebeliso e mpe e 'meli e tloaelehileng

Se ke oa pata GJYXCH ka kotloloho. Baki ha e etselitsoe ho kopana le mobu, khatello ea mongobo, kapa mojaro wa ditweba. Bakeng sa lepato le tobileng, lekanya thapo e ka ntle e nang le lihlomo joalo ka GYTA53.

U se ke ua feta nako e telele. Re shebelletse li-installer li fanyeha GJYXCH mapahong a litsela a limithara tse 100 "hang feela" hobane ADSS e ne e le sieo.. Nakong ea nako ea sefefo, cable sag e fetisitse meeli ea ho lumellana 'me ho kenya lipalo ho ile ha fetoha kotsi ea polokeho. Bapisa moralo le bolelele, eseng almanaka.

Ha U Hloka ka Botlalo Non-Metallic: Aramid (KFRP) le GJYXFCH

Maemo a mabeli a khanna bareki ho likhoele tse sa theoleheng ka botlalo:

Boemo ba pele - EMI e sebetsang kapa kotsi ea lehalima. Liteishene tse nyenyane, liphasejene tsa phetisetso e matla haholo, merero ea ho kopanya motlakase ka mohala, le (libakeng tse ling) libaka tse lebopong la leoatle tse nang le boemo bo phahameng ba atmospheric static. Libakeng tsena, litlhaloso tsa bareki hangata li laela lithapo tsa dielectric ho tlosa tsela efe kapa efe e teng hona joale..

Boemo ba bobeli - taelo ea taolo kapa konteraka. Lipetlele tse haufi le likamore tsa MRI, boema-fofane bo bong / sesoleng / tshireletso-sebaka sa deployments, le mekhoa e khethehileng ea telco ea Europe e hlokang dielectric last-mile cabling.

Bakeng sa linyeoe tseo:

• GJYXFCH - mofuta o ikemetseng oa kantle o nang le sebopeho se thehiloeng ho FRP sebakeng sa lenģosa la tšepe
• GJFJU - mofuta oa seqha oa ka tlung o se nang tšepe ka botlalo o nang le aramid (KFRP) litho tsa matla

Mefuta ena ka bobeli e fumaneha ka odara eseng joalo ka stock e tloaelehileng. Linako tsa ho etella pele li nka libeke tse 1-3 nako e telele ho feta litekanyo tsa terata ea tšepe, 'me index ea theko e lutse hoo e batlang e le 1.6-2.2 × phetolelo ea tšepe e lumellanang. Ka hona, qeto ea ho reka e lokela ho ba"Na morero ona ke o mong oa maemo a mabeli ao," eseng"Na re batla hore lintho tse seng tsa tšepe li bolokehe." Tlhaloso e feteletseng ke mokhanni oa sebele oa litšenyehelo.

The Drop Cable Decision Tree — 4 Lipotso, 1 Mohlala

Qeto e fokotsa ho lipotso tse 'nè tse latellanang. Ba botse ka tatellano ena mme mohlala o nepahetseng oa oa:

1. E tsamaisoa ka hare kapa kantle?
   Ka tlung → GJXFH kapa GJXH · Kantle → GJYXCH kapa GJYXFCH
2. Bakeng sa kantle: ke thapo e kentsoeng moeeng pakeng tsa lipalo, e se nang terata ya manqosa e arohaneng?
   Ee → mofuta o iphelisang (GJYXCH kapa GJYXFCH) · No → armored outdoor cable such as GYTA53
3. Is a fully non-metallic cable required (Libaka tsa EMI, e tjametseng lehadima, hospital, contract-mandated dielectric)?
   Yes → FRP or KFRP version (GJXFH-FRP indoor, GJYXFCH outdoor, GJFJU for special deployments) · No → steel-reinforced version is fine
4. Is cost-per-meter more important than a premium feature set?
   Yes → steel wire strength member · No → FRP or KFRP for the longer-service-life scenarios above

Lipotso tse 'nè. Five models. One picked cable.

Before You Sign the PO: A Drop Cable Buying Checklist

Print this section, share it with your procurement or engineering team, and use it every time you request a quote or receive a shipment.

Specification checklist (put these on the PO in writing)

• Nomoro ea mohlala le matla thepa ya setho (never trust the model alone)
• Palo ea fiber (1 / 2 / 4 / tloaelo)
• Fiber grade — insist on G.657.A2 bakeng sa thomello efe kapa efe ea FTTH e ka ntlafatsoang ho XGS-PON
• Lisebelisoa tsa baki (LSZH bakeng sa ka ntle le ka ntle ka ho fetisisa ea sejoale-joale; PE feela moo LSZH e sa hlokeheng)
• 'Mala oa jekete (botsho ke bokantle bo tlwaelehileng; bosoeu kapa bohlooho bo ka koptjoa bakeng sa ponahalo ea ka tlung)
• Bolelele ba reel (e tloaelehileng 2-3 km ka moropa; tiisa pele ho litaelo tse kholo)
• Sebopeho sa ho tšoaea se hatisitsoeng (matshwao a metara a latellanang, batch khoutu, le lebitso lefe kapa lefe la bareki)
• Ho hlokahala litifikeiti bakeng sa naha eo u eang ho eona (CPR bakeng sa likopo tsa moaho oa EU, ANATEL bakeng sa Brazil, UL/ETL bakeng sa li-rivers tsa ka hare tsa Amerika Leboea)

Lethathamo la netefatso ea boleng (etsa tsena ka chelete)

• Reel e 'ngoe le e' ngoe e lokela ho romelloa ka tlaleho ea feme ea OTDR le tlaleho ea attenuation e nang le nomoro ea batch
• Lekola sheath ka mahlo hore na e na le botsitso, khatiso e kentsoeng, le ho se tsitsane ha mmala ofe kapa ofe
• Random-sample karolo ea 1-mithara: hlobolisa selata, netefatsa setho sa matla se tsamaisanang le PO spec
• Bend-tekola sampole sebakeng se lekantsoeng sa static bend le ho lekanya tahlehelo ho OTDR (a 0.1 dB kapa jumper e kholo e hloka tlhahlobo ea batch)

Lifolakha tse khubelu tse lokelang ho baka ho hana kapa ho buisana hape

• Nomoro ea mohlala le kaho ea 'mele ha e lumellane le PO
• LSZH sheath e ntša monko o hlakileng oa polasetiki ha sampuli e hlahlojoa mocheso (e bontsha motsoako o sa ikobeleng)
• Ha ho na data ea tlhahlobo ea boemo ba batch e fanoeng ka thepa
• Setho sa matla a tšepe se bonts'a oxidation ea pele pele e kenngoa
• Ho tšoaea ho hatisitsoe kapa ho nyamela ka linako tse ling - ho tla hloleha tlhahlobo ea kamohelo lehlakoreng la bareki

Ntlha ea Bohlokoa - Bapisa Mohlala ho Tšebeliso

Ho reka mohala o theoha hantle ke ketso ea ho fetolela. Moreki o re “re hloka FTTH-mile-mile,” which really means “we need the specific model that fits this deployment’s environment, tension profile, EMI risk, and lifecycle.” The decision tree above turns that translation into four questions.

The single most common mistake we see across the region is not overpaying — it is under-specifying. A GJXH indoor cable pulled through a rooftop conduit costs less on the invoice and costs more in the truck rolls it triggers. Spec the model to what the cable will actually experience over its service life, not to what feels cheapest on the day of the PO.

If you would like a printable side-by-side view covering all five models discussed above — you can download it from our FTTH Drop Cable resource hub. We update the sheet quarterly.

Lipotso Tse Botsoang Hangata mabapi le Khetho ea FTTH Drop Cable Model

Phapano ke efe pakeng tsa GJXFH le GJXH?

GJXFH le GJXH ka bobeli ke lithapo tsa ka tlung tsa mofuta oa seqha. Ka machaena a thata a YD/T 1258 kopano ya mabitso, tlhaku F ho GJXFH e bontša setho se matla sa FRP se seng sa tšepe, ha GJXH e bontša tšepe (hangata tšepe ea phosphated) setho sa matla. Ka tshebetso, mabitso a feme a fapana - barekisi ba bang ba romella mohala o ngotsoeng GJXFH o nang le terata ea tšepe ka hare.. Kamehla netefatsa thepa ea setho ho odara ea hau ea theko, eseng feela khoutu ea mohlala.

GJXFH e emetse eng?

Lengolo le leng le le leng le kenyelletsa sebopeho sa 'mele tlas'a YD/T 1258.G e emetse puisano-sebedisa thapo ya optical, J e e tšoaea joalo ka thapo e ka tlung, X e khetholla mofuta oa seqha (serurubele) moseho, F e hlwaya sehlopha sa ditho tse matla, leH e khetholla baki ea kantle. Bala hammoho, GJXFH e bolela thapo ea ka tlung ea mofuta oa seqha e nang le setho se matlafalitsoeng le sheath e kantle. (hangata ke LSZH).

A na nka sebelisa thapo ea ka tlung joalo ka GJXFH kantle?

Che. Lithapo tsa ka tlung li sebelisa lijaki tsa LSZH tse sa tsitsitseng UV bakeng sa ho pepesehela khanya ea letsatsi khafetsa., 'me karolo ea bona ea ho tšela ha e etselitsoe ho pholoha leqhoa, khatello ea moea, kapa mongobo o kantle. Bakeng sa lifofane tsa FTTH deployments pakeng tsa lipalo, sebelisa GJYXCH (lenqosa la tshepe) kapa GJYXFCH (lenqosa le senang tshepe). Bakeng sa tšebeliso ea kotopo kapa ea ho pata ka kotloloho, Hlalosa thapo e ka ntle e nang le lihlomo joalo ka GYTA53.

Na FRP kapa terata ea tšepe e molemo bakeng sa setho se matla sa cable?

Leha e le hore hohle ho molemo - khetho e nepahetseng e itšetlehile ka ho tsamaisoa. Mohala oa tšepe o fana ka matla a phahameng a ho tiea ka dolara 'me e ntse e le khetho e theko e tlaase ka ho fetisisa bakeng sa FTTH e tloaelehileng ea ka tlung.. FRP (polasetiki e matlafalitsoeng ka fiber e se nang conductive) ke khetho e nepahetseng bakeng sa libaka tse nang le EMI e sebetsang, kotsi ea lehalima, kapa ho ba haufi le mehala e phahameng haholo, moo tsela ea tšepe e theohelang fatše ka hare ho thapo e ka baka kotsi bakeng sa ONT e hokahantsoeng kapa thepa ea kabo.

Ho na le lithapo tsa optical drops tse anngoeng ke mehala ea motlakase e phahameng kapa lehalima?

Fiber ea optical ka hare ho thapo ha e sireletsehe ho tšitiso ea motlakase - leseli ha le arabe EMI.. Leha ho le joalo, haeba thapo e sebelisa asetho sa matla a tshepe, tšepe eo e ka nka hona joale ho tloha sebakeng se haufi sa lehalima kapa AC ea nakoana, 'me hona joale ho na le tsela ka thapo e qetellang ho thepa ea hau ea ho felisa. Bakeng sa deployments haufi le substations, liphaseje tsa phetiso, kapa dibakeng tse nang le lehadima, bolela ka ho feletseng e seng tšepe (FRP kapa KFRP) phapang.

What is a self-supporting FTTH drop cable?

A self-supporting drop cable has an integrated messenger element — usually a steel wire in GJYXCH or an FRP rod in GJYXFCH — that carries the cable’s own weight across an aerial span between two support points, typically utility poles. This eliminates the need for a separate lashing wire, simplifying aerial installation. Typical maximum span is ~80 meters; longer runs should use ADSS cable instead.

What is the maximum aerial span for a GJYXCH drop cable?

Approximately 80 meters between support points, under standard conditions. Beyond that distance, cable sag exceeds compliance limits under wind and ice load, and the messenger tension can compromise pole hardware. For spans between 80 le 200+ limithara, deploy ADSS cable, which is engineered for longer aerial runs.

Can I bury GJYXCH cable directly underground?

Che. GJYXCH is jacketed for aerial exposure to UV and weather, not for soil contact, ground moisture pressure, or rodent protection. Bakeng sa lepato le tobileng, use an armored cable such as GYTA53 with a steel-tape armor and appropriate sheathing.

How long is a standard FTTH drop cable per reel?

Standard reel length is typically 2 ho 3 kilometers for indoor GJXFH / GJXH and outdoor GJYXCH. Custom reel lengths and larger drums can be produced on order — confirm both the standard offering and any project-specific length requirement with your supplier before finalizing the PO.

What tensile strength does a drop cable actually need for my project?

It depends on the installation scenario, not on the cable name. Wall-run or short indoor deployments typically require 40–100 N long-term tension (GJXFH or GJXH). Conduit pulling, ceiling voids, and short aerial transitions require higher rated cables — even for short outdoor spans, spec GJYXCH at 300 N nako e telele. Under-speccing the tensile rating is the single most common cause of latent micro-fracture failures we see in the field.

How do I verify drop cable quality before accepting delivery?

Request a factory OTDR trace and attenuation report for every reel, keyed to the batch number. Visually inspect the sheath for consistent color, embedded print marking, and no material inconsistency. Random-sample a short section from each shipment, hlobolisa selata, and confirm that the strength member material physically matches your PO specification. Any mismatch between the PO and the actual construction should trigger an immediate quality dialogue with the supplier.

What fiber grade should I specify for future-proof FTTH deployments?

SpecifyG.657.A2 or higher. Older-generation G.657.A1 fiber shows significant macro-bending loss at bend radii below 10 mm, especially at 1625 nm — the wavelength window used for XGS-PON 10G FTTH network expansion. Deploying A1 today may force an operator into a costly network re-cable when they upgrade. A2 fiber holds ≤ 1.0 dB loss at a 7.5 mm e kobeha radius ho 1625 nm, effectively covering the operator’s next upgrade cycle at a marginal cost premium.