Fiber · Manufacturer Series

Corning FC–ST square-flange hybrid adapter series

The 740-002N-003 adapter pattern specifies FC–ST coupling and sleeve choices, not a fiber category or optical-link verdict.

FC adapter sideend A

ST adapter sideend B

Not Establisheddirection evidence

Noneconversion

Endpoint map

Start with what is physically represented

Equipment direction and end-to-end Tx/Rx mapping are not resolved by a passive optical reference or by selecting its connector ends. Read the separate polarity field.

Corning 740-002N-003 FC–ST square-flange adapter pattern; CAH-136_AEN 2016-11-29: named-series evidence, not a selected SKU, length or inspected sample.

FC adapter side reference →ST adapter side reference →Compare references with these ends →Canonical cable/adapter note →

Optical evidence · separate checks

More than the connector ends

Corning 740-002N-003 FC–ST square-flange adapter pattern; CAH-136_AEN 2016-11-29

End A polish not established

Not established

The selected adapter row does not qualify every FC polish variant; check the exact mating components.

End B polish not established

Not established

The selected adapter row does not qualify every ST polish variant; check the exact mating components.

Fiber category not applicable

Not applicable

The coupling adapter is not a cable containing OS2 or OM4 fiber. Attached fibers and equipment still require matching evidence.

Organization not established

Not established

No simplex/duplex assignment is imported from another 740-series table row.

Fiber count not applicable

Not applicable

No cable fiber count is supplied by this coupling-adapter profile.

Polarity / path mapping not established

Not established

No end-to-end Tx/Rx or A–A/A–B mapping is established by this adapter pattern.

Polarity change not applicable

Not applicable

This is not a polarity-switching patch-cord reference.

Coupling / sleeve documented

metal or ceramic sleeve

740-002N-003 square-flange FC–ST: N=1 metal; N=2 ceramic. No sleeve or flange dimensions are published.

C340A · C340B

No compatibility verdict. Different polishes at separate ends of a documented cord do not permit direct mating of unlike physical-contact polishes at one joint. Never look into a live fiber or port.

Capability ledger

Six questions kept separate

DataConditional

No protocol, data rate, wavelength or complete link budget is assigned. Resolve exact transceivers and the entire optical path.

Evidence: C340A

Power / chargingNot Applicable

No electrical power-delivery role is represented.

VideoNot Applicable

No TOSLINK, HDMI or other video/audio protocol is inferred from network-fiber endpoints.

ConversionNone

No active signal or media conversion is represented. Connector adaptation is not a mode or protocol conversion.

Evidence: C340A

Length / reachNot Applicable

No patch-cable length is supplied by this coupling-adapter reference.

Evidence: C340A

Markings / certificationProduct Specific

Read the exact named series and selected variant. Connector color is not a substitute for endpoint-polish and fiber documentation.

Evidence: C340A

Explicit unknowns

Exact selected item, current condition, optical-port support and installation remain unverified.
No wavelength, protocol, link budget, end-to-end speed or hardware result is determined.
No direct mating of unlike physical-contact polishes is recommended; differing ends of a documented cord are distinct mating joints.

Source boundary

Why this profile says what it says

Back to first citation ↑

Source records: S420

C340ASource checked · pending review

Corning lists 740-002N-003 as an FC–ST square-flange coupling-adapter pattern within its 740-series FC-PC adapter table. It is an adapter reference, not a patch cord with a supplied fiber category or an active media converter.

Scope: CAH-136_AEN revision 2016-11-29, page 3; selected order pattern only; current availability not checked. · review due 2027-01-06

Back to first citation ↑

Source records: S420

C340BSource checked · pending review

In that Corning adapter table, N=1 selects a metal sleeve and N=2 selects a ceramic sleeve. This choice does not by itself identify the fiber, polish, port or optical budget of the surrounding link.

Scope: CAH-136_AEN revision 2016-11-29, page 3; no connector or panel fabrication dimensions published. · review due 2027-01-06

Corning · Corning FC-PC connectors and adapters — CAH-136_AEN

722-series connector and 740-series adapter examples in the 2016-11-29 revision.

Open source ↗

Pages 1 and 3: 722-series key and ferrule description; 740-series FC and hybrid FC-ST ordering table. · No universal FC key-width, ferrule-diameter, polish-conversion or loss-budget assertion. Do not use the panel-mount descriptions as mating-interface dimensions.

Common questions

Questions this record can help resolve

Is a hybrid fiber adapter the same as a hybrid patch cord?Separate a documented mechanical coupler from an assembled fiber cable and from an optical compatibility result.

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 2 scoped claims · 0 sources with inspection/access flags.

Page scope: manufacturer-series

Assessment 2026-10-22 · earliest scheduled source review 2027-01-05. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 1 source scopes, access limits and dates

S420 · Corning FC-PC connectors and adapters — CAH-136_AEN

Corning · Manufacturer / product-owner domain · inspected 2026-10-07 · due 2027-01-05

Within inspection window

Scoped support: 722-series connector and 740-series adapter examples in the 2016-11-29 revision.

Not established / limitations: No universal FC key-width, ferrule-diameter, polish-conversion or loss-budget assertion. Do not use the panel-mount descriptions as mating-interface dimensions.

Locator: Pages 1 and 3: 722-series key and ferrule description; 740-series FC and hybrid FC-ST ordering table.

Trace 2 claims to their source records

C340A · P340

Claim scope: CAH-136_AEN revision 2016-11-29, page 3; selected order pattern only; current availability not checked.

Source links: S420 · Evidence trail → (private workspace)

C340B · P340

In that Corning adapter table, N=1 selects a metal sleeve and N=2 selects a ceramic sleeve. This choice does not by itself identify the fiber, polish, port or optical budget of the surrounding link.

Claim scope: CAH-136_AEN revision 2016-11-29, page 3; no connector or panel fabrication dimensions published.

Source links: S420 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.