FC Bare Adapter

Name: FC Bare Adapter
Brand: Ever Expresslink
SKU: fc-bare-adapter-342

Bare Adapter

FC Bare Adapter is part of the bare adapter range built by Ever Expresslink Limited in Ningbo, China. It is built on the FC (Ferrule Connector) interface.

Temporary connections to unterminated fiber for test and splice verification

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Product Overview

FC Bare Adapter is part of the bare adapter range built by Ever Expresslink Limited in Ningbo, China. It is built on the FC (Ferrule Connector) interface.

The screw coupling keeps end-face contact stable when the rack is vibrating or when technicians work on neighboring ports, which is why FC stayed the default on test sets, monitoring gear and older carrier equipment. FC needs the alignment key to seat in the adapter slot before the nut is tightened. Cross-threading a keyed FC is the single most common cause of high loss on an FC link.

It is one of 7 items in this range. A typical application is laboratory characterisation of fiber samples. What the range is built to give you there: measure without spending a connector and a termination cycle.

The problem it addresses is needing a measurement on fiber that has not been terminated yet. A practical note that applies across this range: clean the guide bore between fibres. Specifications for a particular configuration are confirmed on the quotation rather than assumed from the designation.

Key Benefits

Supplied as FC Bare Adapter, so the part you receive matches the designation you ordered against
Compact enough to live in a splicing kit
Square and standard body versions for different panel and bench mounts
Measure without spending a connector and a termination cycle
Reusable across many fibres in a single session

Problems It Solves

Test kits that cannot reach bare fiber in a splice tray
Needing a measurement on fiber that has not been terminated yet
Terminating a fiber purely to verify continuity, then cutting the connector off
Slow fault-finding on a partly built link

Application Scenarios

High-vibration cabinets
Fiber training and practical assessment
Continuity checking before a splice closure is sealed
Power measurement on an unterminated distribution cable
Laboratory characterisation of fiber samples

Who It Is For

Splicing crews verifying continuity before closing a tray
Test engineers measuring unterminated cable
Laboratories characterizing fiber samples
Training programs teaching splice verification

Technical Features

FC (Ferrule Connector) interface
FC needs the alignment key to seat in the adapter slot before the nut is tightened. Cross-threading a keyed FC is the single most common cause of high loss on an FC link.
Reusable clamp designed for repeated insertion
Available for SC, FC, ST and LC port types
Square-body versions for panel mounting
Clamping mechanism sized for 250 µm or 900 µm fiber

Materials

Zirconia ceramic or precision metal guide
Metal or thermoplastic body
Spring clamping mechanism
Thermoplastic dust cap

Specifications

Product Designation	FC bare adapter
Product Family	Bare Adapter
Connector Interface	FC (Ferrule Connector)
Manufactured In	Ningbo, China
Warranty	One year against defects in materials and workmanship

Values shown are those carried by the product designation. Dimensional and optical values for a specific order are confirmed on the quotation.

Manufacturing Process

Guide bore inspection
Clamp mechanism assembly and force setting
Mating interface verification
Repeat-insertion durability sampling
Cleaning and packing

Quality Control

Guide bore concentricity sampled per lot
Clamping force verified on sample units
Repeat-insertion cycling on samples
Loss repeatability measured with a reference fiber
Visual inspection of the mating interface

Customization Options

Connector interface type
250 µm or 900 µm fiber acceptance
Square or standard body
Kitted with cleaver and cleaning consumables

Compared With Other Options

SC	SC seats faster with a push-pull motion; FC holds up better where the cabinet vibrates or ports get bumped
ST	ST twists on with a bayonet in a quarter turn; FC's threaded nut takes longer but resists loosening

Use Guide

Handling FC Bare Adapter

Before You Order

Cleave the fiber square with a precision cleaver before insertion
Clean the fiber with lint-free wipe and solvent
Insert to the stop and close the clamp without forcing it

In Service

Treat the reading as indicative rather than as a certified link measurement
Release the clamp before withdrawing the fiber to avoid scoring it
Clean the guide bore between fibres

FAQ

Questions About FC Bare Adapter

What do you need from us to quote FC Bare Adapter?

The quantity, the destination and anything that has to match on your side: connector and polish at each end, fiber mode and core size, and length where the item is an assembly. If you are matching a part you already buy, send the sample and we will quote against it.

Can FC Bare Adapter be supplied with a different connector interface?

Yes. FC (Ferrule Connector) is what this designation carries, and the same family is stocked across the other mainstream connector standards. Tell us the port you have to mate with and we will confirm the equivalent part.

Which connector types are available?

SC, FC, ST and LC interfaces are the common ones, in both standard and square-body form. Tell us your test set's port type and we will match it.

Do I still need to cleave the fiber?

Yes. The adapter aligns the fiber but cannot fix a bad cleave. A square, clean cleave is what makes the reading meaningful.

What fiber sizes does a bare adapter accept?

Versions are available for 250 µm coated fiber and for 900 µm tight-buffered fiber. Confirm which one your splice tray presents before ordering.