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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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017242-000 | FIST-SOSA2-4SC-S 017242-000 | FIST-SOSA2-4SC-S
Variant of FIST-SPLICE-TRAYS
FIST® Splice Sub-assembly kit with 4 trays, each for holding up to 4 primary or 2 secondary coated fibers, with Heat Shrink type splice holder
017242-000 | FIST-SOSA2-4SC-S
  • Regional Availability: EMEA
  • Product Brand: FIST®
  • Product Series: FIST-SOSA2
  • Product Type: Fiber splice tray
  • Splice Tray Chip Type: Heat shrink
  • Splice Tray Construction: SC (for up to 4 primary or 2 secondary coated fibers)
SpecificationsSpecs
017242-000 | FIST-SOSA2-4SC-S
  • Product Brand: FIST®
  • Product Series: FIST-SOSA2
  • Product Type: Fiber splice tray
  • Splice Tray Chip Type: Heat shrink
  • Splice Tray Construction: SC (for up to 4 primary or 2 secondary coated fibers)
  • Regional Availability: EMEA
018632-000 | FIST-GCO2-BE16-NN 018632-000 | FIST-GCO2-BE16-NN
Variant of FIST-GCO2-B
FIST® GC02 Fiber Optic Splice Closure, Heat Shrink or Gold Gel Cable sealing, size BE, no pre-installed fiber trays, 16 round ports + 1 oval port
018632-000 | FIST-GCO2-BE16-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...: 1344
  • Splicing Capacity, Mass Fusion, ...: 1728
SpecificationsSpecs
018632-000 | FIST-GCO2-BE16-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...: 1344
  • Splicing Capacity, Mass Fusion, ...: 1728
  • Regional Availability: EMEA
021822-000 | FOSC400-B4/FR-RIBN-NNV 021822-000 | FOSC400-B4/FR-RIBN-NNV
Variant of FOSC-400
FOSC® 400 B4 Fire Retardant Fiber Optic Splice Closure, Heat Shrink Cable sealing, one pre-installed ribbon tray, with test valve
021822-000 | FOSC400-B4/FR-RIBN-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
021822-000 | FOSC400-B4/FR-RIBN-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
028323-000 | FOSC400-ACC-A4-BASKET 028323-000 | FOSC400-ACC-A4-BASKET
Variant of FOSC450-CLOS-ACC
FOSC® 400 A4 Fiber Optic slack storage basket kit
028323-000 | FOSC400-ACC-A4-BASKET
  • Regional Availability: North America
  • Product Brand: FOSC®
  • Product Type: Grounding kit
  • Product Series: FOSC 400
SpecificationsSpecs
028323-000 | FOSC400-ACC-A4-BASKET
  • Product Brand: FOSC®
  • Product Type: Grounding kit
  • Product Series: FOSC 400
  • Regional Availability: North America
031660-000 | FOSC400-B4/FR-24-1-NNV 031660-000 | FOSC400-B4/FR-24-1-NNV
Variant of FOSC-400
FOSC® 400 B4 Fire Retardant Fiber Optic Splice Closure, Heat Shrink Cable sealing, one pre-installed 24-splice tray, with test valve
031660-000 | FOSC400-B4/FR-24-1-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
031660-000 | FOSC400-B4/FR-24-1-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
032617-000 | FOSC-ACC-FUNNEL-RIBBON 032617-000 | FOSC-ACC-FUNNEL-RIBBON
Variant of FOSC400-CLOS-ACC
FOSC® Funnel tubing kit for routing ribbon fibers from central coretube to the splice trays
032617-000 | FOSC-ACC-FUNNEL-RIBBON
  • Regional Availability: North America
  • Product Brand: FOSC®
  • Product Type: Cable termination kit
  • Product Series: FOSC 400 | FOSC 450
SpecificationsSpecs
032617-000 | FOSC-ACC-FUNNEL-RIBBON
  • Product Brand: FOSC®
  • Product Type: Cable termination kit
  • Product Series: FOSC 400 | FOSC 450
  • Regional Availability: North America
033368-000 | FOSC600-D6I-NT-0-D4V 033368-000 | FOSC600-D6I-NT-0-D4V
Variant of FOSC-600
FOSC® 600 D Fiber Optic Splice Closure, Gel Cable sealing, inline type, no pre-installed trays, two 3-port gel blocks, 4 ground feedthrough lugs, with test valve
033368-000 | FOSC600-D6I-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
033368-000 | FOSC600-D6I-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
034123-000 | FOSC400-A4-16-1-BNV 034123-000 | FOSC400-A4-16-1-BNV
Variant of FOSC-400
FOSC® 400 A4 Fiber Optic Splice Closure, Heat Shrink Cable sealing, one pre-installed 16-splice tray, cable blocking, with test valve
034123-000 | FOSC400-A4-16-1-BNV
  • 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...: 48
SpecificationsSpecs
034123-000 | FOSC400-A4-16-1-BNV
  • 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...: 48
  • Regional Availability: Latin America | North America
043526-000 | FOSC-450-MULTI4/7 043526-000 | FOSC-450-MULTI4/7
Variant of FOSC450-CLOS-ACC
FOSC® 450 Multiple Cable Attachment Device and Seal for Fiber Optic Splice closures
043526-000 | FOSC-450-MULTI4/7
  • Regional Availability: EMEA
  • Product Brand: FOSC®
  • Product Type: Cable sealing
  • Product Series: FOSC 450
SpecificationsSpecs
043526-000 | FOSC-450-MULTI4/7
  • Product Brand: FOSC®
  • Product Type: Cable sealing
  • Product Series: FOSC 450
  • Regional Availability: EMEA
051646-000 | FOSC600-D8B-NT-0-N4V 051646-000 | FOSC600-D8B-NT-0-N4V
Variant of FOSC-600
FOSC® 600 D Fiber Optic Splice Closure, Gel Cable sealing, butt type, no pre-installed trays, two 4-port gel blocks, 4 ground feedthrough lugs, with test valve
051646-000 | FOSC600-D8B-NT-0-N4V
  • 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
051646-000 | FOSC600-D8B-NT-0-N4V
  • 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
056395-000 | FOSC-ACC-D-BASKET-TALL 056395-000 | FOSC-ACC-D-BASKET-TALL
Variant of FOSC450-CLOS-ACC
FOSC® Slack Storage Basket Accessory for Fiber Splice Closures
056395-000 | FOSC-ACC-D-BASKET-TALL
  • Regional Availability: North America
  • Product Brand: FOSC®
  • Product Type: Slack basket
  • Product Series: FOSC 450
SpecificationsSpecs
056395-000 | FOSC-ACC-D-BASKET-TALL
  • Product Brand: FOSC®
  • Product Type: Slack basket
  • Product Series: FOSC 450
  • Regional Availability: North America
059218-000 | FOSC600-D4B-R2-1-D4V 059218-000 | FOSC600-D4B-R2-1-D4V
Variant of FOSC-600
FOSC® 600 D Fiber Optic Splice Closure, Gel Cable sealing, butt type, pre-installed D ribbon tray, one 4-port gel block, 4 ground feedthrough lugs, with test valve
059218-000 | FOSC600-D4B-R2-1-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
059218-000 | FOSC600-D4B-R2-1-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
Compare
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  • Ordering Guide: FOSC 450 Fiber Optic Splice Closures

    FOSC 450 Fiber Optic Splice Closure Ordering Guide provides the information you need to specify and buy FOSC 450 splice closures and accessories for your fiber network.
    Download

  • At-A-Glance: Fiber Splice Closure - Spanish

    Fiber splice closures specifications and comparison and applications.
    Download

  • At-A-Glance: Fiber Splice Closure

    Fiber splice closures specifications and comparison and applications.
    Download

  • 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

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

          • Ordering Guide: FOSC 450 Fiber Optic Splice Closures

            FOSC 450 Fiber Optic Splice Closure Ordering Guide provides the information you need to specify and buy FOSC 450 splice closures and accessories for your fiber network.
            Download

          • At-A-Glance: Fiber Splice Closure - Spanish

            Fiber splice closures specifications and comparison and applications.
            Download

          • At-A-Glance: Fiber Splice Closure

            Fiber splice closures specifications and comparison and applications.
            Download

          • 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