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  5. Fiber Splice Closures

To tackle the variety of challenges service operators face when deploying fiber, CommScope has created a family of fiber optic splice closures that balance key criteria such as reliability, installability, flexibility and speed of deployment.

To choose the right fiber splicing closure , you must determine which solution best suits your needs in the specific part of the network:

  • Trunk and feeder network solutions
  • Feeder and distribution network solutions
  • Distribution and drop network solutions

For example, as you move closer to the customer, frequent re-entry access is essential—whereas, in the trunk network, a fit-and-forget solution is often the preferred option. By knowing where in the outside plant FTTx network you’re building, finding an easy-to-deploy and long-lasting closure becomes effortless with CommScope’s proven (yet future focused) fiber closure family.

With over 30 years of experience offering advanced network solutions—including our revolutionary gel sealing technology—CommScope can help your network realize its full potential today and tomorrow.

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086228-000 | FOSC600-D8B-NT-0-L4V 086228-000 | FOSC600-D8B-NT-0-L4V
Variant of FOSC-600
FOSC® 600 D Fiber Optic Splice Closure, Gel Cable sealing, butt type, no pre-installed trays, loose buffered Ribbon module, two 4-port gel blocks, 4 ground feedthru lugs, with test valve
086228-000 | FOSC600-D8B-NT-0-L4V
  • Regional Availability: Latin America | North America
  • Product Brand: FOSC®
  • Product Series: FOSC 600
  • Product Type: In-line | rectangular fiber closure | Single-ended | rectangular fiber closure
  • Cable Ports Quantity, total: 4 multi-out ports (16 cables)
  • Cable Sealing Type: Compressed gel
  • Closure Sealing Type: Captured bolts | Over-centered latches with rubber gasket
  • Closure Style: In-line | Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 35 mm | 1.378 in
  • Splicing Capacity, Single Fusion...: 864
  • Splicing Capacity, Mass Fusion, ...: 1728
SpecificationsSpecs
086228-000 | FOSC600-D8B-NT-0-L4V
  • Product Brand: FOSC®
  • Product Series: FOSC 600
  • Product Type: In-line | rectangular fiber closure | Single-ended | rectangular fiber closure
  • Cable Ports Quantity, total: 4 multi-out ports (16 cables)
  • Cable Sealing Type: Compressed gel
  • Closure Sealing Type: Captured bolts | Over-centered latches with rubber gasket
  • Closure Style: In-line | Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 35 mm | 1.378 in
  • Splicing Capacity, Single Fusion...: 864
  • Splicing Capacity, Mass Fusion, ...: 1728
  • Regional Availability: Latin America | North America
091476-000 | FIST-GCO2-OSK-LTS 091476-000 | FIST-GCO2-OSK-LTS
FIST Oval port seal kit for single fiber loose tube cable
091476-000 | FIST-GCO2-OSK-LTS
  • Regional Availability: EMEA
  • Product Type: Heat shrink sealing kit
  • Product Series: FIST-GCO2
SpecificationsSpecs
091476-000 | FIST-GCO2-OSK-LTS
  • Product Type: Heat shrink sealing kit
  • Product Series: FIST-GCO2
  • Regional Availability: EMEA
092244-000 | FOSC600-D6B-NT-0-D4V 092244-000 | FOSC600-D6B-NT-0-D4V
Variant of FOSC-600
FOSC® 600 D Fiber Optic Splice Closure, Gel Cable sealing, butt type, no pre-installed trays, two 3-port gel blocks, 4 ground feedthrough lugs, with test valve
092244-000 | FOSC600-D6B-NT-0-D4V
  • Regional Availability: Latin America | North America
  • Product Brand: FOSC®
  • Product Series: FOSC 600
  • Product Type: In-line | rectangular fiber closure | Single-ended | rectangular fiber closure
  • Cable Ports Quantity, total: 4 multi-out ports (16 cables)
  • Cable Sealing Type: Compressed gel
  • Closure Sealing Type: Captured bolts | Over-centered latches with rubber gasket
  • Closure Style: In-line | Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 35 mm | 1.378 in
  • Splicing Capacity, Single Fusion...: 864
  • Splicing Capacity, Mass Fusion, ...: 1728
SpecificationsSpecs
092244-000 | FOSC600-D6B-NT-0-D4V
  • Product Brand: FOSC®
  • Product Series: FOSC 600
  • Product Type: In-line | rectangular fiber closure | Single-ended | rectangular fiber closure
  • Cable Ports Quantity, total: 4 multi-out ports (16 cables)
  • Cable Sealing Type: Compressed gel
  • Closure Sealing Type: Captured bolts | Over-centered latches with rubber gasket
  • Closure Style: In-line | Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 35 mm | 1.378 in
  • Splicing Capacity, Single Fusion...: 864
  • Splicing Capacity, Mass Fusion, ...: 1728
  • Regional Availability: Latin America | North America
094705-000 | FOSC400-B4-NT-0-NNV 094705-000 | FOSC400-B4-NT-0-NNV
Variant of FOSC-400
FOSC® 400 B4 Fiber Optic Splice Closure, Heat Shrink Cable sealing, no pre-installed trays, with test valve
094705-000 | FOSC400-B4-NT-0-NNV
  • Regional Availability: Latin America | North America
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 4 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 96
  • Splicing Capacity, Mass Fusion, ...: 144
SpecificationsSpecs
094705-000 | FOSC400-B4-NT-0-NNV
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 4 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 96
  • Splicing Capacity, Mass Fusion, ...: 144
  • Regional Availability: Latin America | North America
112614-000 | FOSC-400B4-S24-6-NNN 112614-000 | FOSC-400B4-S24-6-NNN
Variant of FOSC-400
FOSC® 400 B4 Fiber Optic Splice Closure, Heat Shrink Cable sealing, six pre-installed 24-splice trays
112614-000 | FOSC-400B4-S24-6-NNN
  • Regional Availability: Asia | EMEA
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 4 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: None
  • Splicing Type, Supported: Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 96
  • Splicing Capacity, Mass Fusion, ...: 144
SpecificationsSpecs
112614-000 | FOSC-400B4-S24-6-NNN
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 4 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: None
  • Splicing Type, Supported: Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 96
  • Splicing Capacity, Mass Fusion, ...: 144
  • Regional Availability: Asia | EMEA
113210-000 | FOSC-400D5-72-1-NGV 113210-000 | FOSC-400D5-72-1-NGV
Variant of FOSC-400
FOSC® 400 D5 Fiber Optic Splice Closure, Heat Shrink Cable sealing, one pre-installed 72-splice tray, ground feedthrough lugs, with test valve
113210-000 | FOSC-400D5-72-1-NGV
  • Regional Availability: Asia | EMEA
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 5 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 576
  • Splicing Capacity, Mass Fusion, ...: 1152
SpecificationsSpecs
113210-000 | FOSC-400D5-72-1-NGV
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 5 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 576
  • Splicing Capacity, Mass Fusion, ...: 1152
  • Regional Availability: Asia | EMEA
116970-000 | FOSC-400D5-36-3-NGV 116970-000 | FOSC-400D5-36-3-NGV
Variant of FOSC-400
FOSC® 400 D5 Fiber Optic Splice Closure, Heat Shrink Cable sealing, three pre-installed 36-splice trays, with test valve
116970-000 | FOSC-400D5-36-3-NGV
  • Regional Availability: Asia | EMEA
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 5 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 576
  • Splicing Capacity, Mass Fusion, ...: 1152
SpecificationsSpecs
116970-000 | FOSC-400D5-36-3-NGV
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 5 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 576
  • Splicing Capacity, Mass Fusion, ...: 1152
  • Regional Availability: Asia | EMEA
124962-000 | FIST-SOSA2-4SE-A 124962-000 | FIST-SOSA2-4SE-A
Variant of FIST-SPLICE-TRAYS
FIST® Splice Sub-assembly kit with 4 trays, each for holding up to 12 primary or 4 secondary coated fibers, with ANT type splice holder
124962-000 | FIST-SOSA2-4SE-A
  • Regional Availability: EMEA
  • Product Brand: FIST®
  • Product Series: FIST-SOSA2
  • Product Type: Fiber splice tray
  • Splice Tray Chip Type: ANT
  • Splice Tray Construction: SE (for up to 12 primary or 4 secondary coated fibers)
SpecificationsSpecs
124962-000 | FIST-SOSA2-4SE-A
  • Product Brand: FIST®
  • Product Series: FIST-SOSA2
  • Product Type: Fiber splice tray
  • Splice Tray Chip Type: ANT
  • Splice Tray Construction: SE (for up to 12 primary or 4 secondary coated fibers)
  • Regional Availability: EMEA
126548-000 | FOSC600-C8B-NT-0-C0V 126548-000 | FOSC600-C8B-NT-0-C0V
Variant of FOSC-600
FOSC® 600 C Fiber Optic Splice Closure, Gel Cable sealing, no pre-installed trays, two 4-port gel blocks, with test valve
126548-000 | FOSC600-C8B-NT-0-C0V
  • Regional Availability: Asia | EMEA
  • Product Brand: FOSC®
  • Product Series: FOSC 600
  • Product Type: In-line | rectangular fiber closure | Single-ended | rectangular fiber closure
  • Cable Ports Quantity, total: 4 multi-out ports (16 cables)
  • Cable Sealing Type: Compressed gel
  • Closure Sealing Type: Captured bolts | Over-centered latches with rubber gasket
  • Closure Style: In-line | Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 35 mm | 1.378 in
  • Splicing Capacity, Single Fusion...: 480
  • Splicing Capacity, Mass Fusion, ...: 864
SpecificationsSpecs
126548-000 | FOSC600-C8B-NT-0-C0V
  • Product Brand: FOSC®
  • Product Series: FOSC 600
  • Product Type: In-line | rectangular fiber closure | Single-ended | rectangular fiber closure
  • Cable Ports Quantity, total: 4 multi-out ports (16 cables)
  • Cable Sealing Type: Compressed gel
  • Closure Sealing Type: Captured bolts | Over-centered latches with rubber gasket
  • Closure Style: In-line | Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 35 mm | 1.378 in
  • Splicing Capacity, Single Fusion...: 480
  • Splicing Capacity, Mass Fusion, ...: 864
  • Regional Availability: Asia | EMEA
131599-000 | FOSC-OC-6DSD120ANN2T-U23 131599-000 | FOSC-OC-6DSD120ANN2T-U23
FOSC® A-TRAY-24 type, DWDM, 16 channels, demux, 1561.42 nm starting wavelength, skipped channels
131599-000 | FOSC-OC-6DSD120ANN2T-U23
  • Regional Availability: North America
  • Product Series: FOSC-OC
  • Product Type: DWDM splice tray
  • Interface, Input: Stub tail
  • Interface, Output: Stub tail
SpecificationsSpecs
131599-000 | FOSC-OC-6DSD120ANN2T-U23
  • Product Series: FOSC-OC
  • Product Type: DWDM splice tray
  • Interface, Input: Stub tail
  • Interface, Output: Stub tail
  • Regional Availability: North America
134894-000 | FIST-GCO2-BD16-NN 134894-000 | FIST-GCO2-BD16-NN
Variant of FIST-GCO2-B
FIST® GC02 Fiber Optic Splice Closure, Heat Shrink or Gold Gel Cable sealing, size BD, no pre-installed fiber trays, 16 round ports + 1 oval port
134894-000 | FIST-GCO2-BD16-NN
  • Regional Availability: EMEA
  • Product Brand: FIST®
  • Product Series: FIST-GCO2
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 16 round ports
  • Cable Sealing Type: Gel kit (optional) | Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: None
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 960
  • Splicing Capacity, Mass Fusion, ...: 1440
SpecificationsSpecs
134894-000 | FIST-GCO2-BD16-NN
  • Product Brand: FIST®
  • Product Series: FIST-GCO2
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 16 round ports
  • Cable Sealing Type: Gel kit (optional) | Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: None
  • Splicing Type, Supported: Mass fusion | Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 960
  • Splicing Capacity, Mass Fusion, ...: 1440
  • Regional Availability: EMEA
136051-000 | FOSC400-B4-24-1-BGV 136051-000 | FOSC400-B4-24-1-BGV
Variant of FOSC-400
FOSC® 400 B4 Fiber Optic Splice Closure, Heat Shrink Cable sealing, one pre-installed 24-splice tray, cable blocking, ground feedthrough lugs, with test valve
136051-000 | FOSC400-B4-24-1-BGV
  • Regional Availability: Latin America | North America
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 4 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 96
  • Splicing Capacity, Mass Fusion, ...: 144
SpecificationsSpecs
136051-000 | FOSC400-B4-24-1-BGV
  • Product Brand: FOSC®
  • Product Series: FOSC 400
  • Product Type: Single-ended | round fiber closure
  • Cable Ports Quantity, total: 1 oval port (2 cables) + 4 round ports
  • Cable Sealing Type: Heat shrink
  • Closure Sealing Type: Dome-to-base clamp with O-ring
  • Closure Style: Single-ended
  • Flash Test Valve: Pre-installed
  • Splicing Type, Supported: Single fusion
  • Main Cable Diameter, maximum: 25 mm | 0.984 in
  • Splicing Capacity, Single Fusion...: 96
  • Splicing Capacity, Mass Fusion, ...: 144
  • Regional Availability: Latin America | North America
Compare
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Filters

  • Brochure: FTTH Façade Solution

    The ideal solution for situations where underground installations are cost-prohibitive and pleasing aesthetics are important.
    Download

  • Ordering Guide: FOSC Modular Closure

    Download

  • Ordering Guide: FIST Modular Splice Closure

    The new FIST sleeve offers flexibility and efficiency and supports a variety of applications with simplified planning and logistics and intuitive assembly.
    Download

  • White Paper: Fiber closure sealing evolution - German

    As networks have become more complex, splice closure designs have evolved to address specific challenges and requirements including reliability, installability, flexibility and speed.
    Download

  • White Paper: Fiber closure sealing evolution - French

    As networks have become more complex, splice closure designs have evolved to address specific challenges and requirements including reliability, installability, flexibility and speed.
    Download

  • Accessories Guide: Fiber Workstand

    FOSC Workstand Accessories Ordering Guide
    Download

Filters

August 30, 2021

Press

CommScope Announces General Availability of Modular Fiber Optic Splice Closure for Operators

CommScope announced today the general availability of its Fiber Optic Splice Closure (FOSC) modular solution. This dome splice closure builds on FOSC’s legacy of innovation and protection for billi...

March 12, 2019

Press

Innovation for Billions of Connections

As governments around the world invigorate broadband with investment in digital infrastructure, the number of 5G connections is expected to exceed one billion by 2025. The next few years are critic...

December 11, 2018

Blog

Ice is Only Nice in a Drink

Connectivity outages happen – especially in the winter when the ice and snow get to be huge problems for fiber protection. But our Chris Gemme tells us how to protect your assets so you – and your ...

Sort By:

Filters

  • Brochure: FTTH Façade Solution

    The ideal solution for situations where underground installations are cost-prohibitive and pleasing aesthetics are important.
    Download

  • Ordering Guide: FOSC Modular Closure

    Download

  • Ordering Guide: FIST Modular Splice Closure

    The new FIST sleeve offers flexibility and efficiency and supports a variety of applications with simplified planning and logistics and intuitive assembly.
    Download

  • White Paper: Fiber closure sealing evolution - German

    As networks have become more complex, splice closure designs have evolved to address specific challenges and requirements including reliability, installability, flexibility and speed.
    Download

  • White Paper: Fiber closure sealing evolution - French

    As networks have become more complex, splice closure designs have evolved to address specific challenges and requirements including reliability, installability, flexibility and speed.
    Download

  • Accessories Guide: Fiber Workstand

    FOSC Workstand Accessories Ordering Guide
    Download