Inline Type 4 Port Mechanical Sealing FOSC(288B) - Fiber Optic Cabling Management

Inline Type 4 Port Mechanical Sealing FOSC(288B)

Inline Type 2 Port Mechanical Sealing FOSC(96F)
Inline Type 4 Port Mechanical Sealing FOSC(288C)

LW-FOSC-IM288B-4 Inline Type 4 Port Mechanical Sealing

Fiber Optic Joint Enclosure (FOSC)


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


Fiber Optic Joint Enclosure also called Fiber Optic Splice Closure, is an important fiber optic component for fiber optic cable connection in a fiber-optic network. It is used to house and protect fiber splices.

All of our Fiber Optic Joint Enclosure are tested before the delivery. The testing for Fiber Optic Joint Enclosure includes optical performance testing, sealing performance testing, and mechanical performance testing, including tension, impact, bending and torsion, and environmental performance testing, including temperature cycling, high temperature, vibration, radiation, and corrosion.

LW-FOSC-IM288B-4 Inline Type Fiber Optic Joint Enclosure (FOSC) is mechanical sealing for reusable applications.

  • 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
TypeInline type
Number of Inlet/Outlet ports4 ports
Cable Diameter4 ports×20mm
Maximum CapacityBunchy: 288 fibers;

Ribbon: 576 fibers

Capacity per Splice TrayBunchy: single layer: 24 fibers; dual layers: 48 fibers;

Ribbon: 6pcs

Quantity of Splice Tray6pcs
Body MaterialPC
Sealing MaterialThermoplastic rubber
Assembling methodAerial, direct buried, pipelined, wall mounting, manhole
Net Weight2.6~4.6KG



Main Components:
1Housing (Bottom)To protect splices of fiber optic cables1pc
2Housing (Cover)To protect splices of fiber optic cables1pc
3Splice TrayTo fix Fiber Splice Protective SleevesMax. 6pcs
4Sealing GrommetTo seal bottom and cover1 set
5RingTo seal cables at8 sets
6PlugTo seal empty ports4pcs
7BoltTo fix bottom and cover1 set
Standard Accessories:
8Fiber Splice Protective SleevesTo protect fiber splicesSame as capacity
9Nylon TieTo fix buffer tubes with fibers inside8pcs
10Insulation TapeTo enlarge cable diameter for fixation1 roll
11Sealing TapeTo enlarge cable diameter for sealing grommet1 roll
12Hanging HookFor aerial installation2pcs
13Grounding WireTo connect with grounding device1pc
14Abrasive ClothTo polish fiber optic cable1pc
15Labelling PaperTo label fibers1 set
16 M8 WrenchTo screw bolts of housing 1pc
17M6 WrenchTo screw small bolts of housing 1pc
18M10 WrenchTo screw nuts for strength member1pc
19Hose ClampTo fix fiber cables4pcs
21User ManualTo instruct installation1pc


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 Joint Enclosure
Shape and SealingIM-288A: Inline type mechanical sealing 288 Cores
Cable Port4=4 Ports
Fiber Optic Splice Tray24: 24-core

48: 48-core

Number of Splice Trays1: 1 tray

2: 2 trays

6: 6 trays

ValveV: Valve included
Grounding DeviceG: Grounding device included

For example: LW-FOSC-IM288B-4-241-VG