Dome Type 7 Port FOSC(288B) - Fiber Optic Cabling Management

Dome Type 7 Port FOSC(288B)

Dome Type 6 Port FOSC(288A)
Dome Type 7 Port Heat Shrinkable FOSC(240A)



Dome Type 7 Port Fiber Optic Splice Closure

Mechanical Sealing FOSC, LW-FOSC-DM-288B-7

Dome Type 7 Port Fiber Optic Splice ClosureDome Type 7 Port Fiber Optic Splice Closure
Rubber Sealing Port

24 cores/tray, 12 Slots/tray, 2cores/Slot (Maximum)

Dome Type 7 Port Fiber Optic Splice Closure

1 Oval Port and 6 round Ports

Rubber Sealing Port

Rubber Sealing Option



Fiber Optic Splice Closure, also named Fiber Optic Joint Enclosure, is an essential passive component for fiber optic cable management in a fiber-optic network of backbone, MAN, and access network. It’s widely used to protect optical fiber splices, store slack fiber optic cables, distribute fiber optic cables, etc. In straight-through and branching applications either in the outside plant or indoor buildings.

Fiber Optic Splice Closure can be installed in aerial, pole mounting, wall mounting, direct buried, and duct mounting.

According to the shapes of Fiber Optic Splice Closure, there are inline Fiber Optic Splice Closure (horizontal Fiber Optic Splice Closure) and dome Fiber Optic Splice Closure (vertical Fiber Optic Splice Closure).

According to the functions of Fiber Optic Splice Closure, there are standard Fiber Optic Splice Closure for fiber splicing and FTTH Fiber Optic Splice Closure for housing fiber optic splitters for FTTH Passive Optical Network.


  • Easy access to installation, maintenance, and future expansions.
  • Excellent sealing against water ingress and harsh environment
  • Hinged splice trays for easy expansion without disturbing spliced fibers.
  • Compatible with standard normal fiber cable types


TypeDome type
Sealing StructureMechanical Sealing
Number of Inlet/Outlet ports7 ports
Cable Diameter1 port×38mm; 6 ports×25mm
Maximum CapacityBunchy: 288 fibers;

Ribbon: 864 fibers

Capacity per Splice TrayBouncy: single layer: 12 fibers; dual layers: 24 fibers;

Ribbon: standard: 3pcs; max.: 6pcs

Quantity of Splice Tray12pcs
Body MaterialPC
Sealing MaterialThermoplastic rubber
Assembling methodAerial, direct buried, pipelined, wall mounting, manhole
Net Weight3.2~4.0KG

Dome Type 7 Port Fiber Optic Splice Closure


Main Components:
1Housing (Cover)To protect splices of fiber optic cables1pc
2Splice TrayTo fix Fiber Splice Protective SleevesMax. 12pcs
3Fiber Holding TrayTo store loose tube fibers1pc
4Housing (Base)To fix the internal and external structure1pc
5Plastic HoopTo fix Housing Cover and Base1pc
6Sealing GrommetTo seal Cover and Base1 set

Standard Accessories:

7Mechanical Sealing Protective Tubes and Branching ClipTo seal fiber optic splice closureAs per capacity
8Fiber Splice Protective SleevesTo protect fiber splicesSame as capacity
9Nylon TieTo fix buffer tubes with fibers inside8pcs
10Grounding WireTo connect with a grounding device1pc
11Abrasive ClothTo polish fiber optic cable1pc
12Labelling PaperTo label fibers1 set
13Hanging HoopTo install on wall and pole1 set
14Mechanical Sealing Fixing Tube (Mass)To seal fiber cablesoptional
15Aluminum-foil PaperTo protect cable ports when heated1pc

Dome Type 7 Port Fiber Optic Splice Closure


Optional Accessories:
1ValveTo perform pressure and sealing testing1pc
2Grounding DeviceTo derive metallic components of fiber cable1 set
3Buffer TubeTo protect fibers and be fixed on splice traysspecified
4DesiccantTo desiccate air in FOSC after sealing1 bag


Ordering Information:
NameFOSC: Fiber Optic Splice Closure
Shape and SealingDM-288B: Dome type Mechanical Sealing sealing 288 Cores
Cable Port7=7 Ports
Fiber Optic Splice Tray12: 12-core

24: 24-core

Number of Splice Trays1: 1 tray

2: 2 trays

3: 3 trays


12: 12 trays

ValveV: Valve included
Grounding DeviceG: Grounding device included

For example:  LW-FOSC-DM-288B-7-128-VG