Fiber Optic Splice Closure Manufacturer — Dome and Inline, 12 kohtaan 840 ytimet

Fibconet valmistaa 12 series of outdoor fiber optic splice closures (also called joint closures, cable closures, or in field slang dome cans) for OSP splicing between feeder, distribution and drop cables. Capacity ranges from 12 cores for FTTH drop junctions up to 840 cores for backbone and long-haul splice points. Sealed to IP68, housings are PP+GF, PPR or metal-braced polymer with a 15 to 25-year design field life. Our passive optical component roots trace back to 1994, and the same in-house tooling and test discipline built for PLC splitters now runs the splice closure line.

Two body types cover the two OSP install methods: dome (vertical) closures for pole, wall and direct-buried joints, ja vaakasuoraan (inline) closures for manhole, handhole and figure-8 aerial splice points. Selected dome models ship pre-loaded with 1×8 or 1×16 PLC splitters and act as PON hub points inside a Quick ODN / pre-terminated FTTH deployment. Enclosures accept mechanical, heat-shrink or silicone sealing per model.

The sections below list the 12 models grouped by body type, then cover Dome-vs-Horizontal selection logic, technical specifications, manufacturing capability, pakkaus, FAQ, and a quotation channel.

12 Splice Closure Models We Manufacture

ryhmä 1 — Dome (Vertical) Splice Closures

Cylindrical body with a single base plate carrying all cable ports. Best suited to pole-mount, wall-mount and direct-buried joints where cables enter from one end. The two splitter-loaded models below double as PON hub points inside a Quick ODN deployment.

Malli	Core Capacity	Tiivistys / Luokitus	PON hub role	Tyypillinen käyttö
IK10 IP68 96 Core Huawei-Compatible Access Terminal Closure	96 ytimet	IP68 / IK10 impact	—	Huawei-standard access node, pole or wall
96/144 Core Dome Closure (napa / Seinä / Maanalainen)	96–144 cores	IP68	—	Multi-scenario OSP splice, any mount
96/144 Ydin 100 kPa 25-Year Splice Closure	96–144 cores	IP68 / 100 kPa air-pressure hold	—	Long-life backbone joints requiring pressure test
144 Core Metal-Bracket IP68 Dome Closure	144 ytimet	IP68	—	Metal-braced tray for high-vibration or heavy cable load
IP68 288 Core High-capacity Dome Closure	288 ytimet	IP68	—	High-density backbone splice point
1:8 / 1:16 PLC Splitter IP68 Dome (22000 N / 10 cm cable retention)	Splitter-loaded dome	IP68 / 22000 N cable pull	Yes — Quick ODN hub	PON hub combining splice and 1×8 or 1×16 splitting
IP68 1:8 PLC Splitter Pre-terminated FAT Closure	Jakaja + FAT ports	IP68	Yes — pre-terminated PON hub	Plug-and-play PON hub with drop-cable ports

ryhmä 2 — Horizontal (Inline) Splice Closures

Elongated body with cable ports at both ends. Preferred for manhole, handhole, aerial figure-8 span and any splice point where cables enter and exit in the same axis.

Malli	Core Capacity	Tiivistys / Luokitus	Tyypillinen käyttö
PP+GF / PPR IN-LINE 2-in-2-out 12 Ytimen silmukan sulkeminen	12 ytimet	IP68 / mechanical seal	FTTH drop junction, aerial or handhole
48 Core 1-in-2-out Inline Cable Closure	48 ytimet	IP68	Small branch inline splice
15+ Service Years PP+GF IP68 2-in-2-out Inline Closure	Aikeissa 96 ytimet	IP68 / 15+ years field life	Mid-density distribution splice with long life claim
96 Core Silicone-Protection Horizontal Splice Closure (Mukautettu)	96 ytimet	IP68 / silicone sealing	Manhole splice with elevated moisture and chemical exposure
576 / 840 Core Heat-Shrink Seal IP68 Cable Closure	576–840 cores	IP68 / lämpökutistuva	Long-haul backbone splice, high-count ribbon or loose-tube

What Is a Splice Closure and How to Choose the Right Type

Dome vs Horizontal — The Two Body Types

A splice closure protects, seals and organises spliced fibers at any point along an OSP cable route. The body shape follows the physical install location, not the fiber count.

	Dome (Vertical)	Horizontal (Inline)
Kaapelin sisääntulo	All ports on one base plate	Ports at two opposite ends
Best install	napa, seinään, suoraan haudattu, hand-hole from top	Kaivo, aerial figure-8 span, tray-mount inline
Typical core count	96, 144, 288 — expandable via added trays	12, 48, 96, 576, 840 — scales with body length
Access	Lift the dome, all splice trays exposed	Split the shell, access trays along the axis
PLC splitter loading	Common (PON hub role)	Less common, used mainly for pure splice

Sealing Method — Mechanical, Heat-Shrink or Silicone

• Mekaaninen tiiviste (compression grommet + rubber gasket): re-enterable, no torch required, fastest field install. Standard on most dome and small inline models.
• Heat-shrink seal: highest holding force, permanent seal, common on high-count 576–840 core inline backbone closures. Requires a torch and trained crew.
• Silicone / gel seal: used where the splice point sees standing moisture, oil or aggressive chemicals; re-enterable without heat.

How to Match the Closure to Your Field Scenario

• FTTH drop junction on aerial figure-8 → 12-core inline mechanical seal.
• PON hub with 1×8 or 1×16 splitter → splitter-loaded dome closure with pre-terminated ports; slots into a Quick ODN deployment.
• Direct-buried backbone splice needing pressure test → 96/144 core dome, 100 kPa air-pressure hold, 25-year design life.
• Manhole splice with wet environment → horizontal closure with silicone sealing.
• Long-haul or metro trunk splice, high fiber count → 576 tai 840 core inline heat-shrink closure.
• Pole splice with heavy tray load or vibration → metal-bracket dome, tray-secured for mechanical stability.

Fiber Count Selection Guide

Core capacity	Network role	Body type shortlist
12–48 cores	FTTH pudotus / distribution junction	Inline, mechanical seal
96 ytimet	Access-layer PON node, base-station splice	Dome (Huawei-compatible or metal-bracket)
144 ytimet	Distribution-layer aggregation	Dome, tray-expandable
288 ytimet	Metro backbone splice point	Dome, suuri kapasiteetti
576–840 cores	Long-haul backbone, high-count ribbon	Inline, heat-shrink seal

Tekniset eritelmät

Huomautus: the values below are family-typical ranges across the 12 series, not a single-SKU datasheet. Ask us for the model-specific test report at RFQ stage; we send it under the model part number.

Parametri	Tyypillinen arvo	Kommentti
Core capacity	12 kohtaan 840 ytimet	Per model; expandable via added splice trays
Asunnon materiaali	PP+GF, PPR, ABS+PC or metal-braced polymer	Selected per model and environment
Sealing grade	IP68	All outdoor OSP models
Impact resistance	Up to IK10 on selected models	Metal-bracket and IK10-rated series
Tiivistysmenetelmä	Mekaaninen / lämpökutistuva / silicone	Per model
Air-pressure hold	100 kPa on selected models	For pressurised OSP networks
Cable retention (axial pull)	Aikeissa 22,000 N / 10 cm on selected models	Splitter-loaded dome rated for heavy pull
Cable entry ports	1-sisään-2-ulos, 2-sisään-2-ulos, 4-in-4-out per model	Additional ports available on custom builds
Main cable diameter	Typically Φ7–Φ16 mm	Model-dependent; branch cable Φ5–Φ11.5 mm
Jatkoalusta	Stackable, 12 tai 24 splices per tray	Sekä fuusio- että mekaaniset liitosalustat ovat tuettuja
Käyttölämpötila	−40°C - +65°C	Säilytys -35°C - +55°C lähetyskohtaisesti
Suunnittele kenttäelämää	15 kohtaan 25 vuotta ulkona	Per model; PP+GF UV-lisäainetuilla 25 vuotta
Viitetestistandardit	IEC 61753-1, YD/T 814, GR-771	Sovelletaan projektikohtaisesti

Valmistuskyky ja laadunvalvonta

Tuotantohistoria ja -tiimi

Fibconetin optisen viestinnän tausta juontaa juurensa 1990-luvun alkuun. Passiivisten optisten komponenttien valmistuksen juuret alkavat 1994 PLC-jakajatehtaan kanssa; yhtiö perustettiin virallisesti 2000 ja nykyään toimii kanssa 300+ ydinhenkilöstö ja laajennettu usean toimipisteen tuotantoverkosto jopa 800 henkilökunta ja insinöörit ympäri Kiinaa. Sama työkalu- ja testausala, joka on rakennettu korkean määrän PLC-jakajatuotantoon, käyttää nyt jatkosten sulkemislinjaa, mukaan lukien PP+GF- ja PPR-koteloiden ruiskuvalu, liitosalustan muodostus, and full-load assembly.

Upstream Material Control

Splice closures are only as reliable as the materials inside them. We control the upstream stack rather than only the assembly step:

• Housing resin: qualified PP+GF and PPR grades with a UV stabiliser and weathering-modifier additive package dosed at pre-mix.
• Sealing rubber and silicone: qualified grades matched to the operating temperature range and rated field life.
• Splice trays and metal brackets: produced on dedicated tooling for dimensional consistency across production batches.
• Passive optical parts inside splitter-loaded closures: Shijia / Korean-source PLC chips, NTT-grade optical epoxy, CCTC ceramic ferrules, and G.657.A2 pigtail fiber sourced from major Chinese fiber brands (Kuitukoti, YOFC, Hengtong).

Laadunvalvonta

• Air-pressure hold test on every assembled dome closure before shipment (100 kPa on rated models).
• Waterproof and dustproof test to the rated IP68 grade on production samples per batch.
• Impact test per rated IK grade on housing samples.
• Cable retention pull test per rated axial load (aikeissa 22,000 N / 10 cm on splitter-loaded dome).
• Thermal cycle and humidity test per model qualification.
• Full-load tray test with splice trays and splitters fitted, to verify cable-management fit under real port load.

Sertifikaatit ja vaatimustenmukaisuus

Fibconet operates under an integrated ISO 9001 / ISO 14001 / ISO 45001 management system covering quality, environment and occupational health & turvallisuutta. Raw material RoHS reports are supplied by default with every shipment.

Product-level compliance is issued per model and per target market. Depending on the model list and destination country, we can support TÄMÄ, RoHS, REACH, the, ETL, CPR, ANATEL, CCA, TLC and other market-entry documents. Applicable test reports against IEC 61753-1, YD/T 814 ja Telcordia GR-771 reference standards are provided at project scale.

Certification applicability varies by product and project requirements. Send us your target market and the model list, and we return the applicable certificate set with the quotation.

Pakkaus, OEM and Custom Options

Standard Export Packaging

• Accessory bags (liitosalustat, grommets, tools) inside moisture-proof plastic pouches.
• Individual moisture-proof and shock-proof inner box per closure.
• Master export carton marked with moisture-proof and orientation labels.
• Transport temperature range: −35°C to +55°C.
• Storage temperature range: −5°C to +45°C, relative humidity below 75%.

OEM and Custom Options

• OEM logo and label: laser-marked on the housing, printed on inner and master carton.
• Custom port layout: extra cable entries or blanks per your project drawing.
• Splitter pre-loading: 1×8, 1×16 or custom ratio installed at factory for Quick ODN and PON hub roles.
• Splice tray count: pre-loaded with the exact tray count and adapter set your project requires.
• Mounting kit: napa, seinään, aerial-figure-8 or manhole kit bundled per order.
• CAD drawings and installation manuals supplied on request for project design review.
• MOQ: 100 pcs per model on standard configuration; 500–1,000 pcs on custom builds. [TBC: confirm per model]
• Lead time: 15–25 days for standard orders; 25–40 days for custom builds. [TBC: confirm]

Usein kysytyt kysymykset

Q1. What do buyers mean by “liitossuljin”, “joint closure”, “dome can” tai “熔接包”?

All four are the same product family — an outdoor enclosure that houses and seals spliced fibers along an OSP cable route. “Splice closure” ja “joint closure” are the standard English terms. “Dome can” ja “炮筒” are field slang for the dome (vertical) body style. The Chinese term “熔接包” refers to the same category and is common in Chinese-language RFQs from Southeast Asia and Africa.

Q2. What is the difference between a splice closure and a distribution box?

A splice closure protects and organises spliced fibers along an OSP cable route; there is no active drop-cable termination for subscribers. A distribution box (RASVA) terminates drop cables into adapter ports and often houses the last-mile splitter. Splice closures sit deeper in the network; distribution boxes sit at the drop point closest to homes.

Q3. When should I choose a dome closure and when an inline closure?

Choose dome when cables enter from a single direction — pole-mount, seinäkiinnitys, suoraan haudattu, or hand-hole accessed from above. Choose inline when cables enter and exit along the same axis — manhole splice, aerial figure-8 span, or tray-mount along a linear run.

Q4. What core capacity do I need?

Match the closure to the largest cable at the splice point plus a spare tray for future expansion. FTTH drop junctions typically use 12–48 core inline closures. PON access nodes use 96–144 core dome closures. Metro backbone splices use 288 ytimet; long-haul trunk splices use 576 tai 840 cores in heat-shrink inline bodies.

Q5. What sealing method is most reliable for a direct-buried joint?

For direct-buried and pressurised networks, use a mechanical-seal dome with 100 kPa air-pressure hold; the seal is verifiable in the field and re-enterable for future splice work. Heat-shrink is more permanent but not re-enterable without cutting.

Q6. Do you supply closures pre-loaded with a PLC splitter?

Joo. Dome closures can be shipped with a 1×8 or 1×16 PLC splitter pre-terminated at factory. The 1:8 / 1:16 PLC Splitter Dome model is rated for 22,000 N / 10 cm cable retention so the housing tolerates heavy drop-cable pull. Splitter chips are Shijia or Korean-source, and pigtails use G.657.A2 fiber from major Chinese fiber brands.

Q7. What is the outdoor field life?

PP+GF and PC+ABS housings with a UV stabiliser additive package hold 15 kohtaan 25 years of outdoor service, depending on model. Ask us for the specific model’s material spec if your project tender requires a stated design life.

Q8. Do you provide test reports and international standard conformity documents?

Joo. IEC 61753-1, YD/T 814 and GR-771 test reports are available per model. Raw material RoHS reports ship by default. Market-entry certificates such as CE, REACH, the, ETL, CPR, ANATEL, CCA and TLC are issued per model and per target market. If a certificate you need is not already on file, we can arrange third-party testing at project scale.

Q9. What is your MOQ and typical lead time?

MOQ starts at 100 pcs on standard configuration; custom builds are typically 500–1,000 pcs. Standard orders ship in 15–25 days; custom builds in 25–40 days. [TBC: confirm exact values per model at RFQ stage.]

Q10. Do you supply mounting hardware for pole and manhole install?

Joo. Pole-mount and wall-mount hardware is included on the dome closures. Aerial figure-8 mounting kits for inline closures are supplied on request. Manhole tray mounts and cable-management brackets are quoted with the closure.

Q11. Can these splice closures be used in a Quick ODN or pre-terminated FTTH deployment?

Joo. Our splitter-loaded dome closures — the 1:8 / 1:16 PLC Splitter Dome and the pre-terminated FAT closure — act as PON hub points inside a Quick ODN system. They pair with our pre-terminated drop cables, MPO -keskittimet, sub boxes and asymmetric splitters to reduce on-site splicing, cut installation labor, and make FTTH rollout more predictable. If your project is a new FTTH build in a labor-cost-sensitive market, ask for a matched Quick ODN configuration when you send the RFQ.