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Dome Mechanical Seal Fiber Optic Splice Closure GJS-D011 480mm×220mm

Place of Origin China
Brand Name OMC or OEM
Certification ROHS and ISO
Model Number GJS-D011
Minimum Order Quantity 20
Price Negotiation
Packaging Details Inner PE Bag and carton
Delivery Time 5 - 8 work days
Payment Terms L/C, T/T, Western Union
Supply Ability 1000/pcs/month
Product Details
Outside Dimension (Height X Diameter) 480mm×220mm Weight (excluding Outside Box) 3500g—4100g
Number Of Inlet/out Ports 6 Pieces Diameter Of Fiber Cable Φ8mm~Φ21mm
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Mechanical Seal Fiber Optic Splice Closure


Dome Fiber Optic Splice Closure


Fiber Optic Dome Closure OEM

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Product Description



1.The scope of application is: aerial, underground, wall-mounting, duct-mounting, handhole-mounting. The ambient temperature ranges from -40℃ to +65℃.


2. Basic structure and configuration

2.1 Dimension and capacity

Outside dimension (Height x Diameter) 480mm×220mm
Weight (excluding outside box) 3500g—4100 g
Number of inlet/out ports 6 pieces
Diameter of fiber cable Φ8mm~Φ21mm
Capacity of FOSC Bunchy:24-288 (cores), Ribbon: up to 432(cores)


2.2 Main components

No. Name of components Quantity Usage Remarks
1 FOSC cover 1 piece Protecting fiber cable splices in whole

Height x Diameter

400mm x 220mm

2 Fiber optic splice tray (FOST) Max. 6 trays (either bunchy or ribbon Fixing heat shrinkable protective sleeve and holding fibers

Suitable for:

Bunchy: 24,36, 48, 72 (cores)

Ribbon:12,18 (pieces)

3 Base 1set Fixing internal and external structure  
4 Fiber holding tray 1 pcs Holding fiber with protective coat  
5 Plastic hoop 1 set Fixing between FOSC cover and base  
6 Gasket ring 1 set

Big gasket ring is used to seal FOSC cover and base.

Small gasket ring is used to seal entry/exit tube

1 piece of big gasket ring, 6 pieces of small gasket ring
7 Pressure testing valve 1 set After inject air, it is used for pressure testing and sealing testing Configuration as per requirement
8 Earthing deriving device 1 set Deriving metallic parts of fiber cables in FOSC for earthing connection Configuration as per requirement


2.3 Main accessories and special tools

No. Name of accessories Quantity Usage Remarks
1 Heat shrinkable protective sleeve   Protecting fiber splices Configuration as per capacity
2 Nylon tie   Fixing fiber with protective coat Configuration as per capacity
3 Earthing wire 1 piece Putting through between earthing devices  
4 Abrasive cloth 1 piece Scratching fiber cables  
5 Labeling paper 1 piece Labeling fibers  
6 Special wrench 2 pieces Installing and tightening nut of reinforced core and nut (plastic) of entry/exit tube  
7 Measuring paper 1 piece To measure perimeter of fiber cable, of which the diameter is enlarged with seal tape  
8 Seal tape 1 ring Enlarging diameter of fiber cable which fits in with gasket ring. Configuration as per specification
9 Insulation tape 1 ring Enlarging diameter of fiber cable for easy fixing  
10 Metal hoop 1 set For wall mounting and pole hugging  

Buffer tube


decided by customers Hitched to fibers and fixed with FOST, managing buffer. Configuration as per requirement
12 Desiccant 1 bag Put into FOSC before sealing for desiccating air  


3. Necessary tools for installation




3.1 Supplementary materials (to be provided by operator)

Name of materials Usage
Scotch tape Labeling, temporarily fixing
Ethyl alcohol Cleaning
Gauze Cleaning


3.2 Special tools (to be provided by operator)

Name of tools Usage
Fiber cutter Cutting off fiber cable
Fiber stripper Strip off protective coat of fiber cable
Combo tools Assembling FOSC


3.3 Universal tools(to be provided by operator)

Name of tools Usage and specification
Band tape Measuring fiber cable
Pipe cutter Cutting fiber cable
Electrical cutter Take off protective coat of fiber cable
Combination pliers Cutting off reinforced core
Screwdriver Crossing/Paralleling screwdriver
Waterproof cover Waterproof, dustproof
Metal wrench Tightening nut of reinforced core


3.4 Splicing and testing instruments (to be provided by operator)

Name of instruments Usage and specification
Fusion Splicing Machine Fiber splicing
OT DR Splicing testing
Provisional splicing tools Provisional testing

Notice: The above-mentioned tools and testing instruments should be provided by the operators themselves.


4. The process of installing FOSC.

Step One - Open the closure

Cleaning the locale and determine where to install the FOSC and then place

fiber cables required.

Check whether the main components and accessories have been well prepared

inside the package.

Open the closure

  • Demount hoop fixing bolt and pull hoop locking system out, then proceed in

demounting the hoop.

  • Pull the FOSC cover upwards out, installation could begin.

See Drawing 1

Important issues: If the weather condition is not good enough, then a tent must

be pitched for waterproof and dustproof.


Dome Mechanical Seal Fiber Optic Splice Closure GJS-D011 480mm×220mm 0

Step Two -Determine length of fiber cable to be fixed and stripped inside FOSC

4.2.1 ①. Fiber cable in 120mm length: the distance from small gasket ring to fiber cable


②. Fiber cable in 1740mm length: it is used to be winded and spliced after stripping.

③. Fiber with protective coat in 140mm length: the distance from the fixing point of

fiber cable to the fixing point of FOST (fiber optic splice tray).

④. Fiber in 1600mm length: after stripping off the protective coat, it is to be winded inside the FOST after splicing with other fibers

4.2.2 See Drawing 2

Important issues: 1. Reserve enough length of fiber cable to be spliced.

2. Stripping length also could be decided by customers according to

installation requirement

Dome Mechanical Seal Fiber Optic Splice Closure GJS-D011 480mm×220mm 1

Dome Mechanical Seal Fiber Optic Splice Closure GJS-D011 480mm×220mm 1