OM1 62.5/125 Fiber Optic Couplers | LC, SC, ST & FC Adapters

Multimode OM1 62.5/125 Fiber Optic Couplers

Our Multimode OM1 62.5/125 Fiber Optic Couplers are designed to provide precise, low-loss connections between two multimode fiber optic cables. These couplers—also known as adapters—feature high-precision alignment sleeves that ensure accurate mating of connectors to maintain signal integrity. Available in LC, SC, ST, and FC connector styles, these couplers are ideal for joining simplex, duplex, or even quad fiber runs in structured cabling systems. All models are finished in the standard beige color for OM1 compatibility and are designed to meet both performance and durability standards.

Built for Your Application

These OM1 couplers are essential components for any network that requires reliable multimode connectivity. Whether you're building or expanding a fiber patch panel, wall mount enclosure, or cross-connect system, these couplers enable you to link or extend fiber lines without compromising on quality. Their compatibility with a range of connector formats—including LC, SC, ST, and FC—makes them a flexible choice for mixed environments and future upgrades. With universal models that support both multimode and singlemode, you also gain installation flexibility and simplified inventory management.

Key Features & Benefits:

Compatible with OM1 62.5/125 multimode fiber
Available in LC, SC, ST, and FC formats
Choose from simplex, duplex, or quad configurations
Flanged and non-flanged options for a variety of panel mounting needs
Universal couplers support both multimode and singlemode fiber
High-precision alignment sleeves help ensure low insertion loss and high return loss
Spring-loaded dust cover options available for added connector protection
Industry-standard beige housing for OM1 identification
RoHS compliant and built for long-term reliability in demanding applications

Available Configurations for These Products

All couplers in this category are stock items and typically ship within 24 business hours, making them a great choice for time-sensitive installations. These products are not customizable, but we offer a wide selection of customizable fiber optic components elsewhere on our site if you need something more specific.

Connector configurations include:

LC: simplex, duplex, and quad versions
SC: simplex and duplex, with or without flange
ST: simplex and duplex, with flange options
FC: simplex universal
Universal compatibility: select ST and FC models support both multimode and singlemode fiber

Mounting options:

With flange for secure panel mounting
Without flange for cleaner installations where mounting hardware is not required

All models are available as standalone components, meaning no pulling eyes or pre-terminated leads apply. These are in-panel adapters used to interconnect or extend patch cables.

Common Uses for Multimode OM1 62.5/125 Fiber Optic Couplers

Patch panels in telecom and data networks
Wall mount enclosures and rack-mount fiber systems
LAN and backbone infrastructure where OM1 fiber is deployed
Laboratory and test environments where temporary connections are needed
Expansion or extension of legacy OM1 multimode networks
Cross-connects for quick changes and reconfiguration of fiber pathways

FAQ

Are these couplers compatible with other fiber types?

These couplers are optimized for OM1 62.5/125 multimode fiber, but several universal couplers in this category (such as ST and FC versions) are also compatible with singlemode. However, it's generally best practice to match fiber types for optimal performance.

What’s the difference between flanged and non-flanged versions?

Flanged couplers include a mounting tab that allows the coupler to be screwed or snapped into a patch panel or enclosure. Non-flanged couplers are more compact and are useful for cleaner, streamlined installs without panel mounting.

Do these couplers support duplex connections?

Yes. In addition to simplex couplers, the category includes duplex and quad couplers, especially for LC and SC connector types. Duplex versions allow simultaneous bi-directional communication using two fibers.

Can these be reused or re-installed?

Yes. These couplers are durable and reusable, allowing for multiple mating cycles. They’re ideal for both permanent installations and test setups where connections are frequently changed.

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SKU: LC-FOSC-M1-01 LC Simplex Multimode OM1 - 6.5/125 Fiber Optic Coupler without Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $2.25 51 Unit(s) available	SKU: LC-FOSC-M1-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: LC-FODC-M1-02 LC Duplex Multimode OM1 - 6.5/125 Fiber Optic Coupler with Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $2.50 3,098 Unit(s) available	SKU: LC-FODC-M1-02 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: LC-FODC-M1-02-NF LC Duplex Multimode OM1 - 6.5/125 Fiber Optic Coupler without Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $2.25 815 Unit(s) available	SKU: LC-FODC-M1-02-NF Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: SC-FOSC-WOF-M1-01 SC Simplex Multimode OM1 - 62.5/125 Fiber Optic Coupler without Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $1.95 821 Unit(s) available	SKU: SC-FOSC-WOF-M1-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: SC-FOSC-M1-01 SC Simplex Multimode OM1 - 62.5/125 Fiber Optic Coupler with Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $2.00 136 Unit(s) available	SKU: SC-FOSC-M1-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: SC-FOSC-OM1WF-SSD-01 SC Simplex Multimode Multimode OM1 - 6.5/125 Fiber Optic Coupler with Flange and Hinged Spring-Loaded Dust Cover Door - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $4.95 349 Unit(s) available	SKU: SC-FOSC-OM1WF-SSD-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: LC-FOQC-M1-04 LC Quad Multimode OM1 - 6.5/125 Fiber Optic Coupler with Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $3.55 1 Unit(s) available	SKU: LC-FOQC-M1-04 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: SC-FODC-M1-02 SC Duplex Multimode OM1 - 6.5/125 Fiber Optic Coupler with Flange - Beige Estimated Lead Time: Typically Ships Within 24 Business Hours $2.50 1,094 Unit(s) available	SKU: SC-FODC-M1-02 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: ST-FOSC-UV-01 ST Simplex Universal Fiber Optic Coupler for Singlemode and Multimode Fiber Estimated Lead Time: Typically Ships Within 24 Business Hours $2.00 319 Unit(s) available	SKU: ST-FOSC-UV-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: FC-FOSC-UV-01 FC Simplex Universal Fiber Optic Coupler for Singlemode and Multimode Fiber Estimated Lead Time: Typically Ships Within 24 Business Hours $5.00 192 Unit(s) available	SKU: FC-FOSC-UV-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: ST-FOSC-UV-WF-01 ST Simplex Universal Fiber Optic Coupler with Flange for Singlemode and Multimode Fiber Estimated Lead Time: Typically Ships Within 24 Business Hours $2.50 243 Unit(s) available	SKU: ST-FOSC-UV-WF-01 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: ST-FODC-UV-WF-01 ST Duplex Universal Fiber Optic Coupler with Flange for Singlemode and Multimode Fiber $4.50 364 on the way On Backorder Until TBD	SKU: ST-FODC-UV-WF-01	View Product Quick Add
SKU: QT-OHE-IP68-INL-PCCCS-1545 QuickTreX® Premium Outdoor Harsh Environment Waterproof IP68 Rated and High Performance PA66 Thermoplastic In-Line Custom Fiber Optic Optic MM or SM - LC or SC Coupler - Compatible w/ 1 x 1.5 - 4.5 mm Cable OD Estimated Lead Time: Typically Ships Within 24 Business Hours $8.50 229 Unit(s) available	SKU: QT-OHE-IP68-INL-PCCCS-1545 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: QT-OHE-IP68-INL-PCCCS-4575 QuickTreX® Premium Outdoor Harsh Environment Waterproof IP68 Rated and High Performance PA66 In-Line Custom Fiber Optic Optic MM/SM - LC, SC, or MTP/MPO Coupler - Compatible w/ 1 x 4.5 - 7.5 mm Cable OD Estimated Lead Time: Typically Ships Within 24 Business Hours $8.50 484 Unit(s) available	SKU: QT-OHE-IP68-INL-PCCCS-4575 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: QT-OHE-IP68-BHS-1A-1545 QuickTreX® Premium Outdoor Harsh Environment Waterproof IP68 Rated and High Performance PA66 Thermoplastic Panel-Mount Bulkhead MM or SM - LC, SC, or MTP/MPO Custom Fiber Optic Coupler w/ Dust Cap and Lanyard - Compatible w/ 1 x 1.5 - 7.5 mm Cable OD Estimated Lead Time: Typically Ships Within 24 Business Hours $9.95 228 Unit(s) available	SKU: QT-OHE-IP68-BHS-1A-1545 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add
SKU: QT-OHE-IP68-BHS-2A-1545 QuickTreX® Premium Outdoor Harsh Environment Waterproof IP68 Rated and High Performance PA66 Panel-Mount Bulkhead MM or SM - LC or SC Custom Fiber Optic Coupler w/ Dust Cap and Lanyard - Compatible w/ (Duplex) 2 x 1.5 - 4.5 mm Cable OD Estimated Lead Time: Typically Ships Within 24 Business Hours $9.95 185 Unit(s) available	SKU: QT-OHE-IP68-BHS-2A-1545 Estimated Lead Time: Typically Ships Within 24 Business Hours	View Product Quick Add

Singlemode In Stock Pre-Terminated Assemblies

Multimode In Stock Pre-Terminated Assemblies

Indoor Plenum 62.5/125 OM1 Multimode Preterminated Fiber Optic Assemblies

Indoor Plenum 50/125 OM2 Multimode Preterminated Fiber Optic Assemblies

Indoor Plenum 50/125 OM3 Multimode Preterminated Fiber Optic Assemblies

Indoor Plenum 50/125 OM4 Multimode Preterminated Fiber Optic Assemblies

Indoor Plenum 50/125 OM5 Multimode Preterminated Fiber Optic Assemblies

Indoor Plenum Singlemode Preterminated Fiber Optic Assemblies

Indoor / Outdoor 62.5/125 OM1 Multimode Preterminated Fiber Optic Assemblies

Indoor / Outdoor 50/125 OM2 Multimode Preterminated Fiber Optic Assemblies

Indoor / Outdoor 50/125 OM3 Multimode Preterminated Fiber Optic Assemblies

Indoor / Outdoor 50/125 OM4 Multimode Preterminated Fiber Optic Assemblies

Indoor / Outdoor 50/125 OM5 Multimode Preterminated Fiber Optic Assemblies

Indoor / Outdoor Singlemode Preterminated Fiber Optic Assemblies

Indoor Plenum 62.5/125 OM1 Multimode Interlocking Armor Assemblies

Indoor Plenum 50/125 OM3 Multimode Interlocking Armor Assemblies

Indoor Plenum 50/125 OM4 Multimode Interlocking Armor Assemblies

Indoor Plenum Singlemode Interlocking Armor Assemblies

OM1 62.5/125 Multimode Ultra Thin Indoor Armored Pre-Terminated Fiber Optic Assemblies

OM3 50/125 Multimode Ultra Thin Indoor Armored Pre-Terminated Fiber Optic Assemblies

OM4 50/125 Multimode Ultra Thin Indoor Armored Pre-Terminated Fiber Optic Assemblies

OM5 50/125 Multimode Ultra Thin Indoor Armored Pre-Terminated Fiber Optic Assemblies

Singlemode Ultra Thin Indoor Armored Pre-Terminated Fiber Optic Assemblies

Grounding Kits

Indoor / Outdoor Plenum 62.5/125 OM1 Multimode Interlocking Armor Assemblies

Indoor / Outdoor Plenum 50/125 OM3 Multimode Interlocking Armor Assesmblies

Indoor / Outdoor Plenum 50/125 OM4 Multimode Interlocking Armor Assemblies

Indoor / Outdoor Plenum Singlemode Interlocking Armor Assemblies

OM1 62.5/125 Multimode Ultra Thin Indoor/Outdoor Armored Pre-Terminated Fiber Optic Assemblies

OM3 50/125 Multimode Ultra Thin Indoor/Outdoor Armored Pre-Terminated Fiber Optic Assemblies

OM4 50/125 Multimode Ultra Thin Indoor/Outdoor Armored Pre-Terminated Fiber Optic Assemblies

OM5 50/125 Multimode Ultra Thin Indoor/Outdoor Armored Pre-Terminated Fiber Optic Assemblies

Singlemode Ultra Thin Indoor/Outdoor Armored Pre-Terminated Fiber Optic Assemblies

Grounding Kits

Singlemode Outdoor (OSP) SST Drop Self Supporting Pre-Terminated Assemblies

Corning ALTOS® Outdoor (OSP) Loose Tube Multimode 62.5/125 OM1 Pre-Terminated Fiber Optic Assembly

Corning ALTOS® Outdoor (OSP) Loose Tube Multimode 50/125 OM3 Pre-Terminated Fiber Optic Assembly

Corning ALTOS® Outdoor (OSP) Loose Tube Multimode 50/125 OM4 Pre-Terminated Fiber Optic Assembly

Corning ALTOS® Outdoor (OSP) Loose Tube Singlemode Pre-Terminated Fiber Optic Assembly

Outdoor (OSP) Gel Filled Multimode 62.5/125 OM1 Pre-Terminated Fiber Optic Assembly

Outdoor (OSP) Gel Filled Multimode 50/125 OM2 Pre-Terminated Fiber Optic Assembly

Outdoor (OSP) Gel Filled Multimode 50/125 OM3 Pre-Terminated Fiber Optic Assembly

Outdoor (OSP) Gel Filled Multimode 50/125 OM4 Pre-Terminated Fiber Optic Assembly

Outdoor (OSP) Gel Filled Singlemode Pre-Terminated Fiber Optic Assembly

Singlemode Ultra Thin Outdoor Armored Pre-Terminated Fiber Optic Assemblies

Grounding Kits

OM1 62.5/125 Direct Burial Armored Assemblies

OM4 50/125 Direct Burial Armored Assemblies

Singlemode Direct Burial Armored Assemblies

Outdoor Aerial Multimode 62.5/125 OM1 Pre-Terminated Fiber Optic Assembly with Messenger

Outdoor Aerial Multimode 50/125 OM3 Pre-Terminated Fiber Optic Assembly with Messenger

Outdoor Aerial Singlemode Pre-Terminated Fiber Optic Assembly with Messenger

In Stock Tactical Fiber Optic Assemblies

OM3 Multimode Rugged Tactical Deployable Preterminated Fiber Optic Assemblies

OM4 Multimode Rugged Tactical Deployable Preterminated Fiber Optic Assemblies

Singlemode Rugged Tactical Deployable Preterminated Fiber Optic Assemblies

OM3 Multimode Extreme Mil-Tac Deployable Preterminated Fiber Optic Assemblies

Singlemode Extreme Mil-Tac Deployable Preterminated Fiber Optic Assemblies

OpticalCON DUO Pre-Terminated Assemblies & Accessories

OpticalCON QUAD Pre-Terminated Assemblies & Accessories

OpticalCON MTP Pre-Terminated Assemblies & Accessories

Custom 2 Channel Neutrik FIBERFOX Expanded Beam Tactical Assemblies

Custom 4 Channel Neutrik FIBERFOX Expanded Beam Tactical Assemblies

Custom OptiTap IP68 HMFOC Fiber Optic Assemblies

Custom OptiTip IP68 HMFOC Fiber Optic Assemblies

Indoor/Outdoor IP68 Rated Preconnectorized Fiber Optic Cable Assemblies with Senko Connectors

Outdoor Loose Tube IP68 Rated Preconnectorized Fiber Optic Cable Assemblies with Senko Connectors

Outdoor Flat Drop IP68 Rated Preconnectorized Fiber Optic Cable Assemblies with Senko Connectors

Outdoor Armored IP68 Rated Preconnectorized Fiber Optic Cable Assemblies with Senko Connectors

12 Fiber MTP/MPO IP68 Rated Preconnectorized Fiber Optic Harness Assemblies with Senko Connectors

Outdoor Weatherproof IP68 Rated Fiber Optic Junction Boxes for Senko IP68 Bulkhead Adapters

Senko IP68 Bulkhead Adapters

Senko IP68 Inline Adapters

Singlemode Hybrid Fiber Optic Assembly

CU195 Custom RF Outdoor Cable Assemblies

CU240 Custom RF Outdoor Cable Assemblies

CU400 Custom RF Outdoor Cable Assemblies

RF Connectors

RF Adapters

Economy Cable Reels