FOSC Introduction

Series of FOSC is designed for protective connection for spliced fibers in straight-through and branching applications, could be used in underground, aerial, wall-mounting, pedestal or direct buried, hand hole-mounting and duct-mounting applications. The closure is made from high strength engineering material, moulded by NC injecting machine, high aging resistance to factors such as cold, hot, oxygen, or ultraviolet radiation and is excellent in mechanical performance. The structure is reasonable, and the cable fixing device is quite flexible; excellent sealing performance, which could solve all kinds of problems which might come up during installation.
We're outstanding in following aspects and could meet the international standard:

• Environmental protective material; compliant with RoHS.
• The material for the closure is developed by famous suppliers from abroad, excellent performance and could meet all requirements in IEC1073.1 after test.
• As the material for sealing gasket and closure are unique, our closures could be used repeatedly and low consumption to environment and resource.
• The fixing device for reinforced core is of high resistant to high voltage and could stand up to 15KV.
• Non-losable bolts are used to seal the closure so that they won't fall off during field installation.
• Unique grounding device to ensure the sealing performance, and at the same time easy and convenient for installation.
• The splice holder could be used for both ribbon and single core fibers.
• The "vulcanized rubber" sealing device and sealing gasket developed for dome type of FOSC has obtained patent.

Technical Indexes

• Environmental temperature：-40℃～+55℃
• Optical performance： no obvious additional attenuation
• Temperature recycle：When the closure is pressurized to（60±5）KPa，10 times, the drop of air pressure should be less than 5 KPa，no air bubble after 15 minutes when placed under water.
• Seal performance：when the closure is pressurized up to 100KPa，no air bubble after 15 minutes under water, or no change of air meter after 24 hours.
• Re-entry performance：the sealing performance could still meet the standard after three times of re-entry.
• Insulation resistance：≥2×104MΩ.
• Voltage resistance：no arc-over or no puncture under 15KVDC/1min.

Features

• regular cable ports; and could be used for direct transmission and branch connection.
• Universal: could be used for different sizes of cables; and could be used for both single core and ribbon fibers; could be used for direct buried, aerial, pipe-lined applications.
• Fixing device could meet the requirement of cable tensile and torsion performance.
• Fixing device is of high voltage resistance.
• Use high grade imported material and have longer lifetime.

Remark：
Please refer to the instruction manual for the detailed components
Standard accessories: 1 set, sealing gasket 1set, splice tray 1 piece, cable fixing device 1set, splice protective sleeve, nylon tie 12 pieces, armor wire, wet tissue 1bag, plastic plug 2 pieces, insulation tape.
Optional accessories: Grounding wire 1set, valve 1set, aerial installation hoop 1set, pipe-lined hoop, hexagonal sleeve, armor cable wire 4 pieces, protective tube.

FTTH-4B fiber optic splice closure have equipment to install different kinds of adaptors, it’s optional according to the customers’ requirements.

• FC、SC、ST、FC (double core) adaptors can be installed according to the requirements.
• We use adaptor bracket to fix the adaptors which greatly increases its general-purpose and interchangeability.
• Convenient operation and protection.

Purchase Tip

Type	Fibers/Tray	Max capacity(F)	Suitable Dia of cable	Sealing structure	Weight/unit	Size of CTN
			（mm）		（Kg）
FTTH-4B-24	24	96（Single core）	Φ10～Φ22	In-line mechanical sealing	3.8～4.2	580X480X430(6 pieces)
FTTH-4B-144D4	24	128（4-F ribbon）				580X480X430(6 pieces
FTTH-4B-144D6	36	192（6-F ribbon）				580X480X430(6 pieces
FTTH-4B-144D8	48	256（8-F ribbon）				580X480X430(6 pieces
FTTH-4B-96D12	72	384（12-F ribbon）				580X480X430(6 pieces

Manufacturer

FTTH-CHINA