Connectors for optical fibres, optical fibre bundles or cables

1. Scope and Applicability

This PCR supports foreground data packages for the manufacture of passive, demountable optical coupling hardware sold as standalone connector plugs, adaptors or couplers, receptacles, and connector sets for optical fibres, optical fibre bundles, or optical fibre cables. It covers single-fibre and multi-fibre forms, single-mode and multimode applications, physical-contact and other declared optical-interface designs, and the production mix actually represented by the foreground site.

The foreground gate begins with received raw materials, purchased connector components, and packaging materials and ends with conforming, packaged product at the manufacturing plant gate. In-house ferrule, alignment-sleeve, housing, shell, or precision-component fabrication is included when performed by the reporting site. Connector termination, fibre-stub attachment, adhesive curing, end-face preparation, polishing, cleaning, inspection, insertion-loss or attenuation testing, return-loss testing, assembly yield, rework, rejects, and packaging are included when applicable to the declared product form and route.

This PCR excludes optical fibres, optical fibre bundles, and optical fibre cables as products; connectorized cable assemblies, patch cords, and pigtails when the cable assembly is the traded product; active optical transceivers and modules; non-connector passive optical devices; electrical connectors; network installation; use; maintenance; and end-of-life. A cable-mounted product may use this PCR only for a separately measured connector-manufacturing foreground module whose output is the connector contribution, not the cable or transceiver.

The category is technologically diverse. A dataset shall represent one declared product or a production-weighted mix with disclosed shares. Results for one connector interface, fibre type, ferrule material, housing material, end-face geometry, performance grade, or assembly route shall not be extrapolated to the whole category without a reviewed representativeness justification.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.electrical-machinery-and-apparatus.connectors-for-optical-fibres-optical-fibre-bundles-or-cables
classification_refs	CPC 3.0: 46215 — Connectors for optical fibres, optical fibre bundles or cables
covered_products	Standalone passive optical-fibre connector plugs; adaptors or couplers; receptacles; connector sets; single-fibre and multi-fibre forms whose primary function is demountable optical coupling
excluded_products	Optical fibres, fibre bundles, and optical fibre cables; patch cords and pigtails as cable products; active transceivers or optical modules; splices and passive optical devices that are not connector hardware; electrical connectors
representative_product	A declared production mix of conforming finished optical-fibre connectors and adaptors at the manufacturing plant gate, net of external packaging mass
production_route	Purchased or in-house precision components; incoming inspection and kitting; conditional fibre termination and end-face preparation; connector or adaptor assembly; cleaning, inspection and optical testing; packaging
market_state	Finished, conforming standalone connector hardware at plant gate; product form, interface family, fibre compatibility, performance specification, geography, and production period declared

3. Reference Flow

Field	Value
What	Finished, conforming standalone connectors, connector plugs, adaptors or couplers, receptacles, or connector sets for optical fibres, bundles, or cables at the manufacturing plant gate
How much	1 kg net finished product, excluding external packaging
How well	Meets the declared connector-interface, fibre-compatibility, end-face, cleanliness, insertion-loss or attenuation, return-loss, and applicable performance acceptance criteria
How long or cycle	The declared manufacturing reporting period or complete production campaign represented by the foreground records
reference_flow_link	The net conforming output mass is linked to the Tiangong product flow and Mass reference property below

Field	Value
Reference amount	1 kg
Reference product flow	Connectors for optical fibres, optical fibre bundles or cables 5f90c9f6-a484-428c-8846-89bece3a62ec
Reference flow property	Mass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit group	Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unit	kg
Required qualifiers	product form: plug, adaptor or coupler, receptacle, connector set, or other declared form; connector-interface family and mating configuration; single-fibre or multi-fibre channel count; compatible fibre type and category, including single-mode or multimode; ferrule, alignment element or lens form and material, or not applicable; housing, shell, sleeve, spring, boot and protective-cap material breakdown as applicable; end-face geometry or optical-interface finish, including PC, UPC, APC, expanded-beam, pre-polished or other declared design; termination and assembly route; declared optical test wavelength and launch condition; insertion-loss or attenuation test method, acceptance criterion and coverage; return-loss test method, acceptance criterion and coverage; end-face inspection and cleaning method; operating-service environment or performance grade; assembly yield, rework and reject basis; packaging bill of materials; production geography, period and represented product-mix shares

When constructing a foreground data package, the items listed in Required qualifiers must be declared in dataset metadata, process notes, reference flow comment, product description, or an equivalent data package field. Missing required qualifiers make the reference flow definition incomplete for that data package.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	net conforming reference product	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Normalize all foreground inventory to 1 kg of conforming connector hardware after final inspection and before adding external packaging.
net_product_mass	finished connector or adaptor output	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Exclude external packaging, attached optical cable beyond a declared termination stub, and any active transceiver or module from the reference-product mass.
count_to_mass	records available only as pieces, trays, reels, or packs	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Convert count-based records using a measured, product-specific average mass and retained sample size, scale calibration, product identifier, and sampling period; do not apply one connector mass to another form.
energy_conversion	electricity, thermal energy, and fuel records	Energy	kWh or MJ	Preserve the metered unit and energy carrier; document every conversion factor and do not combine electricity and fuel before applying carrier-specific upstream datasets.
optical_test_results	insertion-loss or attenuation and return-loss results	Declared optical performance metric	dB	Retain measured dB results, wavelength, launch condition, reference method, equipment identity, calibration status, sampling basis, and acceptance criterion separately from physical inventory amounts.

5. System Boundary

The foreground boundary follows the actual plant route from received materials and components through conforming product and packaging. Purchased ferrules, alignment sleeves, housings, shells, springs, boots, caps, fibre stubs, adhesives, cleaning agents, polishing media, and packaging require upstream datasets that match their material and supplied state. In-house component fabrication is not replaced by a purchased-component proxy when it occurs at the reporting site.

Boundary Abstraction

Field	Value
declared_starting_condition	Received raw materials and purchased connector, adaptor, termination, testing-consumable, and packaging components at the reporting-site gate
starting_condition_role	Disclosed foreground inputs whose supplier, material, supplied state, and upstream dataset are identified
product_classification_scope	Standalone passive optical coupling connector hardware within CPC 3.0 46215; optical cable and active-module products remain outside the category
recursive_input_rule	A purchased input already classified as connector hardware is recorded once as an explicit upstream connector-component or semi-finished connector input and is not recursively decomposed by this PCR inside the same foreground package
upstream_dataset_requirement	Use material- and state-matched upstream datasets for every purchased component, raw material, energy carrier, water supply, consumable, and waste-treatment service; disclose proxies and missing supplier data
disclosure	Declare product form, fibre compatibility, complete material breakdown, termination route, process inclusion, testing basis, yield and rework, packaging, geography, reporting period, and all exclusions or allocation decisions

Normative Rules

rule_id	Applies to	Rule	Sources
boundary_start_end	foreground manufacturing system	Begin at receipt of raw materials, purchased components and packaging and end with conforming packaged connector hardware at the plant gate; include all onsite operations required to produce the declared reference product.	iso-14044-2006; iso-ts-14048-2002
boundary_variant_specificity	product and route representativeness	Model one declared connector or adaptor form or a production-weighted mix with documented shares; do not generalize one interface, fibre type, material system, finish, or performance grade to CPC 46215 as a whole.	unsd-cpc-3-0-structure; iec-61754-1-2013; iec-61753-1-2018
boundary_upstream_components	purchased materials and components	Keep purchased components explicit by material and supplied state and link them to suitable upstream datasets; include in-house component fabrication when performed onsite.	iec-61755-3-1-2024; iso-ts-14048-2002
boundary_excluded_products	category exclusions	Exclude optical fibres and cables as products, cable assemblies as traded products, active optical modules and transceivers, and unrelated connector categories; route mixed or inseparable products to a more suitable PCR or manual review.	unsd-cpc-3-0-structure
boundary_testing	cleaning, inspection and optical qualification	Include cleaning, end-face inspection, attenuation or insertion-loss testing, and return-loss testing actually performed for the declared product; retain test coverage and rejects even when tests do not create a separate physical flow.	iec-61300-3-4-2023; iec-61300-3-6-2008; iec-61300-3-35-2022; iec-tr-62627-01-2023
boundary_packaging	external packaging	Include primary, secondary and tertiary packaging placed on the product at the plant gate and keep packaging mass outside the net reference-product mass.	iso-14044-2006

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
component_fabrication	In-house precision-component fabrication	conditional	Include when ferrules, alignment sleeves, housings, shells, inserts, lenses, or other connector components are formed or finished at the reporting site.	foreground component manufacturing	Per 1 kg conforming final connector hardware
parts_receiving_and_kitting	Parts receiving, inspection and kitting	required	Include received materials and components for every represented product and record incoming rejects and packaging.	foreground material preparation	Per 1 kg conforming final connector hardware
termination_and_endface	Fibre termination and end-face preparation	conditional	Include for products with factory-attached fibre or fibre stubs, adhesive or mechanical termination, cleaving, curing, polishing, pre-polished splice attachment, or other end-face preparation; exclude for bare adaptors or unterminated connector bodies.	foreground optical-interface preparation	Per 1 kg conforming final connector hardware
connector_adapter_assembly	Connector or adaptor assembly	required	Include the actual assembly route for connector plugs, adaptors, receptacles, or connector sets.	foreground final assembly	Per 1 kg conforming final connector hardware
inspection_and_optical_testing	Cleaning, inspection and optical testing	required	Include the declared sampling or one-hundred-percent inspection and test route and all rework or rejects.	foreground quality assurance	Per 1 kg conforming final connector hardware
packaging	Finished-product packaging	required	Include all packaging applied before the product leaves the manufacturing plant gate.	foreground packaging	1 kg net conforming product plus separately inventoried packaging

Process: In-house precision-component fabrication (component_fabrication)

Inputs

Product flows

Ferrule, sleeve, housing, shell, insert or lens materials (component_materials)

Record each material entering in-house component fabrication separately by material grade and supplied state, including ceramics, polymers, metals, glass, or other declared materials.

• Selected flow: Declared connector-component material by material grade
• Flow property / unit: Mass / kg
• Amount rule: measured issued mass minus documented returns to stores
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_materials
• Sources: iec-61755-3-1-2024; iso-ts-14048-2002

Component-fabrication electricity and other energy (component_energy)

Record electricity, fuels, and thermal energy consumed by forming, machining, moulding, sintering, plating, coating, or finishing operations performed onsite.

• Selected flow: Declared energy carrier
• Flow property / unit: Energy / metered kWh or MJ
• Amount rule: metered process energy or documented allocation from a shared meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_energy
• Sources: iso-ts-14048-2002

Component-fabrication process water and aids (component_water_and_aids)

Record water, machining fluids, mould-release agents, plating chemicals, coatings, abrasives, and other aids when used by onsite component fabrication.

• Selected flow: Declared water or process-aid flow
• Flow property / unit: Mass or volume / kg or m3 as purchased or metered
• Amount rule: measured consumption by material or chemical identity
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_water_and_aids
• Sources: iso-ts-14048-2002

Waste flows

Elementary flows

Outputs

Product flows

Accepted in-house connector components (accepted_components)

Record accepted component mass transferred to kitting, disaggregated by component function and material.

• Selected flow: Accepted ferrules, sleeves, housings, shells, inserts, lenses, or other declared components
• Flow property / unit: Mass / kg
• Amount rule: calculated from accepted component counts and measured product-specific mass, reconciled to production records
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_component_yield_and_waste
• Sources: iso-ts-14048-2002

Waste flows

Component-fabrication scrap and rejects (component_scrap)

Record scrap and rejected components by material and destination, distinguishing internal rework or recycling from exported waste.

• Selected flow: Declared material-specific manufacturing waste
• Flow property / unit: Mass / kg
• Amount rule: measured waste mass plus documented reject mass leaving the process
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_yield_and_waste
• Sources: iso-ts-14048-2002

Component-fabrication wastewater or spent bath (component_wastewater)

Record wastewater and spent baths when wet machining, cleaning, plating, or coating occurs onsite; preserve composition and treatment route.

• Selected flow: Declared wastewater or spent process bath
• Flow property / unit: Mass or volume / kg or m3
• Amount rule: measured discharge or removal quantity by treatment route
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_water_and_aids
• Sources: iso-ts-14048-2002

Elementary flows

Direct emissions from onsite component fabrication (component_direct_emissions)

Record reportable direct air or water emissions from onsite thermal, coating, plating, or solvent operations using monitored or permit-calculation records.

• Selected flow: Pollutant-specific elementary flow
• Flow property / unit: Pollutant-specific mass / kg
• Amount rule: measured or permit-method calculated direct emission
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_direct_emissions
• Sources: iso-ts-14048-2002

Process: Parts receiving, inspection and kitting (parts_receiving_and_kitting)

Inputs

Product flows

Purchased connector and adaptor components (purchased_components)

Record the product-specific bill of materials for purchased ferrules, alignment sleeves, housings, shells, inserts, springs, boots, protective caps, lenses, fibre stubs, and other components. Declare component function, material, supplier state, and whether a field is not applicable.

• Selected flow: Purchased connector or adaptor component by material and supplied state
• Flow property / unit: Mass / kg
• Amount rule: received or issued mass reconciled to product-specific bill of materials and inventory movement
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_purchased_parts_bom
• Sources: iec-61754-1-2013; iec-61755-3-1-2024; foa-fiber-optic-termination

Incoming shipping and protective packaging (incoming_packaging)

Record packaging received with connector components and its material-specific mass.

• Selected flow: Incoming packaging material by material type
• Flow property / unit: Mass / kg
• Amount rule: measured received packaging mass assigned to represented production
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_receiving_and_kitting
• Sources: iso-ts-14048-2002

Receiving and kitting electricity (kitting_energy)

Record electricity used for incoming inspection, controlled storage, automated feeding, and kitting where material.

• Selected flow: Electricity, declared supply mix
• Flow property / unit: Energy / kWh
• Amount rule: metered electricity or documented shared-meter allocation
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_receiving_and_kitting
• Sources: iso-ts-14048-2002

Waste flows

Elementary flows

Outputs

Product flows

Accepted and kitted components (kitted_components)

Record accepted components released to termination or assembly after incoming inspection.

• Selected flow: Product-specific kitted connector components
• Flow property / unit: Mass / kg
• Amount rule: accepted issued mass calculated from receiving and inspection records
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_receiving_and_kitting
• Sources: iso-ts-14048-2002

Waste flows

Incoming rejects and discarded packaging (incoming_rejects_and_packaging_waste)

Record rejected incoming parts and discarded incoming packaging separately by material and destination.

• Selected flow: Material-specific incoming reject or packaging waste
• Flow property / unit: Mass / kg
• Amount rule: measured rejected or discarded mass by treatment route
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_receiving_and_kitting
• Sources: iso-ts-14048-2002

Elementary flows

Process: Fibre termination and end-face preparation (termination_and_endface)

Inputs

Product flows

Kitted connector components and declared fibre or fibre stub (termination_components)

Record the kitted connector body, ferrule or optical interface, and the exact fibre or fibre-stub type entering the declared termination route.

• Selected flow: Product-specific connector components and declared optical fibre or fibre stub
• Flow property / unit: Mass / kg
• Amount rule: measured or bill-of-material mass issued to termination
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_termination_materials_and_energy
• Sources: foa-fiber-optic-termination; iec-61755-3-1-2024

Adhesive, crimp, splice, polishing and cleaning consumables (termination_consumables)

Record adhesives, primers, crimp parts, splice protectors, polishing films or slurry, cleaning agents, wipes, and other route-specific consumables by material or chemical identity.

• Selected flow: Declared termination, polishing, or cleaning consumable
• Flow property / unit: Mass or count converted to mass / kg
• Amount rule: measured issue less documented return, with count-to-mass conversion where needed
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_termination_materials_and_energy
• Sources: foa-fiber-optic-termination; iec-tr-62627-01-2023

Termination, curing and polishing energy (termination_energy)

Record electricity and thermal energy for preparation, adhesive curing, cleaving, splicing, polishing, cleaning, and extraction equipment.

• Selected flow: Declared electricity or thermal-energy carrier
• Flow property / unit: Energy / kWh or MJ
• Amount rule: metered energy or documented equipment-time allocation
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_termination_materials_and_energy
• Sources: foa-fiber-optic-termination; iso-ts-14048-2002

Waste flows

Elementary flows

Outputs

Product flows

Accepted terminated optical interfaces (terminated_interfaces)

Record terminated and end-face-prepared interfaces transferred to final assembly or inspection.

• Selected flow: Product-specific terminated connector interface
• Flow property / unit: Mass / kg
• Amount rule: calculated accepted mass after termination inspection
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_termination_yield_and_waste
• Sources: foa-fiber-optic-termination; iec-61300-3-35-2022

Waste flows

Fibre offcuts, polishing residues and termination rejects (termination_waste)

Record fibre offcuts, spent polishing media, contaminated wipes, adhesive waste, and rejected terminated parts separately by treatment route.

• Selected flow: Material-specific termination waste
• Flow property / unit: Mass / kg
• Amount rule: measured waste and reject mass, including outsourced hazardous-waste records where applicable
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_termination_yield_and_waste
• Sources: foa-fiber-optic-termination; iec-tr-62627-01-2023

Elementary flows

Direct termination and cleaning emissions (termination_direct_emissions)

Record reportable direct emissions from adhesives, solvents, cleaning agents, or thermal curing when they cross the environment boundary.

• Selected flow: Pollutant-specific elementary flow
• Flow property / unit: Pollutant-specific mass / kg
• Amount rule: monitored or documented calculation-method emission
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_direct_emissions
• Sources: iso-ts-14048-2002

Process: Connector or adaptor assembly (connector_adapter_assembly)

Inputs

Product flows

Prepared connector or adaptor components (assembly_components)

Record every component entering assembly by function and material, including ferrules or lenses for connectors, alignment sleeves for adaptors, housings or shells, springs, clips, boots, seals, and protective caps as applicable.

• Selected flow: Product-specific prepared connector or adaptor component
• Flow property / unit: Mass / kg
• Amount rule: measured or bill-of-material mass issued to assembly
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_materials_and_energy
• Sources: iec-61754-1-2013; iec-61755-3-1-2024

Assembly aids and energy (assembly_aids_and_energy)

Record assembly adhesives, lubricants, fasteners, compressed air, electricity, and other aids separately by carrier or material.

• Selected flow: Declared assembly aid or energy carrier
• Flow property / unit: Mass or energy / kg, kWh, or MJ
• Amount rule: measured issue or metered consumption, with documented shared-resource allocation
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_materials_and_energy
• Sources: iso-ts-14048-2002

Waste flows

Elementary flows

Outputs

Product flows

Assembled connector or adaptor submitted to inspection (assembled_product)

Record assembled product mass before final cleaning, inspection, and optical testing.

• Selected flow: Assembled product-specific connector or adaptor
• Flow property / unit: Mass / kg
• Amount rule: calculated accepted assembly mass from production and weight records
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_assembly_yield_and_waste
• Sources: iso-ts-14048-2002

Waste flows

Assembly rejects and unrecovered residues (assembly_rejects)

Record assembly rejects and residues by material, reason, rework status, and final destination.

• Selected flow: Material-specific assembly reject or residue
• Flow property / unit: Mass / kg
• Amount rule: measured mass leaving assembly without internal rework
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_yield_and_waste
• Sources: iso-ts-14048-2002

Elementary flows

Process: Cleaning, inspection and optical testing (inspection_and_optical_testing)

Inputs

Product flows

Assembled connectors or adaptors submitted for quality assurance (test_input_product)

Record the product form, interface, fibre type, end-face condition, batch, and mass entering final quality assurance.

• Selected flow: Product-specific assembled connector or adaptor
• Flow property / unit: Mass / kg
• Amount rule: measured or calculated submitted mass by batch and product variant
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_test_input_and_energy
• Sources: iec-61300-3-35-2022; iec-61300-3-4-2023; iec-61300-3-6-2008

Test energy, cleaning materials and reference-interface consumables (test_energy_and_consumables)

Record electricity for inspection and test equipment plus cleaning consumables and reference-interface items consumed or replaced during the reporting period.

• Selected flow: Declared test energy carrier or cleaning and reference consumable
• Flow property / unit: Energy or mass / kWh, MJ, or kg
• Amount rule: metered energy and measured consumable issue less returns
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_test_input_and_energy
• Sources: iec-61300-3-35-2022; iec-tr-62627-01-2023

Waste flows

Elementary flows

Outputs

Product flows

Conforming finished connector hardware (conforming_finished_product)

Record only products that pass the declared inspection and optical-performance acceptance criteria. Retain insertion-loss or attenuation, return-loss, end-face inspection, wavelength, launch, method, calibration, and test-coverage records.

• Selected flow: Connectors for optical fibres, optical fibre bundles or cables 5f90c9f6-a484-428c-8846-89bece3a62ec
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured conforming net product mass before external packaging
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_conforming_output_and_tests
• Sources: iec-61300-3-4-2023; iec-61300-3-6-2008; iec-61300-3-35-2022; iec-61753-1-2018

Products returned to rework (test_rework)

Record products routed to rework and all repeated cleaning, polishing, assembly, and testing burdens without counting reworked output twice.

• Selected flow: Product-specific connector or adaptor returned to rework
• Flow property / unit: Mass / kg
• Amount rule: measured rework mass by failure mode and destination process
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_final_yield_rework_and_rejects
• Sources: iso-ts-14048-2002

Waste flows

Final test rejects (test_rejects)

Record products rejected after final inspection or optical testing by material, failure mode, and treatment destination when they do not enter rework.

• Selected flow: Material-specific rejected connector or adaptor waste
• Flow property / unit: Mass / kg
• Amount rule: measured final reject mass excluding successfully reworked product
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_final_yield_rework_and_rejects
• Sources: iec-61300-3-4-2023; iec-61300-3-6-2008; iec-61300-3-35-2022

Elementary flows

Process: Finished-product packaging (packaging)

Inputs

Product flows

Conforming connector hardware to be packaged (packaging_product_input)

Record the net conforming product transferred to packaging by product variant.

• Selected flow: Connectors for optical fibres, optical fibre bundles or cables 5f90c9f6-a484-428c-8846-89bece3a62ec
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net conforming product mass transferred to packaging
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_product_output_mass
• Sources: iso-ts-14048-2002

Primary, secondary and tertiary packaging and packaging energy (outbound_packaging_and_energy)

Record bags, trays, reels, caps used only for shipment protection, labels, cartons, dividers, pallets, wraps, desiccants, and packaging energy separately by material or carrier.

• Selected flow: Declared packaging material or energy carrier
• Flow property / unit: Mass or energy / kg, kWh, or MJ
• Amount rule: measured packaging issue and metered or allocated packaging energy
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_bom_and_energy
• Sources: iso-14044-2006; iso-ts-14048-2002

Waste flows

Elementary flows

Outputs

Product flows

Packaged connector hardware at plant gate (packaged_reference_product)

Record 1 kg net conforming connector hardware at the plant gate with packaging inventoried separately.

• Selected flow: Connectors for optical fibres, optical fibre bundles or cables 5f90c9f6-a484-428c-8846-89bece3a62ec
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: normalize the measured net conforming output to exactly 1 kg; do not add packaging mass
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_product_output_mass
• Sources: iso-14044-2006; iso-ts-14048-2002

Waste flows

Packaging setup scrap and damaged packaging (packaging_scrap)

Record packaging scrap and damaged packaging by material and treatment route.

• Selected flow: Material-specific packaging waste
• Flow property / unit: Mass / kg
• Amount rule: measured packaging waste mass
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg conforming final connector hardware
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_bom_and_energy
• Sources: iso-ts-14048-2002

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	Sources
allocation_avoid	shared processes and co-production	First avoid allocation through process subdivision, separate metering, or product-specific production records wherever technically feasible.	iso-14044-2006
allocation_variant_mix	multiple connector or adaptor variants	Build a production-weighted mix from measured conforming output mass and variant-specific bills of materials, routes, test coverage, yields, and packaging; do not use simple unit counts when product masses or routes differ materially.	iso-14044-2006; iso-ts-14048-2002
allocation_shared_resources	shared energy, water, consumables and waste	When separate measurement is not feasible, use a documented physical driver causally related to consumption, such as machine time, batch time, metered sub-area use, or processed mass, and retain a sensitivity check for material shared burdens.	iso-14044-2006
allocation_rework	rework loops	Assign all additional material, energy, cleaning, polishing, assembly and retesting burdens to the conforming output of the represented production; count reworked units once in conforming output and disclose the rework rate.	iso-14044-2006; iso-ts-14048-2002
allocation_scrap	internal recycling and exported scrap	Subtract only documented material returned unchanged to the same foreground process from gross issue; report exported scrap and its treatment as an output without an avoided-production credit unless the study applies and discloses a reviewed substitution or system-expansion method.	iso-14044-2006
allocation_economic_fallback	inseparable co-products	Use economic allocation only when subdivision and a causal physical relationship are not feasible; document prices, period, geography, allocation shares, and sensitivity and do not treat ordinary connector rejects as co-products.	iso-14044-2006

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_component_materials	component_fabrication	raw materials for in-house connector components	material issue and return record	product id; component function; material grade; supplied state; lot; gross issue; return; unit; date	ERP issue and return records reconciled to calibrated weighing	kg	per lot or batch	declared reporting period	all onsite component lines in scope	sum net issue by material and product variant, then normalize to conforming output	supplier specification; material certificate; scale calibration; ERP reconciliation
cp_component_energy	component_fabrication	energy for component forming and finishing	meter and equipment-run record	energy carrier; meter id; start and end readings; machine; run time; batch; allocation driver	calibrated submeter or shared-meter allocation using documented physical driver	kWh or MJ	per batch or meter interval	declared reporting period	all onsite component operations in scope	aggregate by carrier and allocate only documented shared use	meter calibration; utility reconciliation; allocation worksheet
cp_component_water_and_aids	component_fabrication	process water, aids, wastewater and spent baths	meter, issue, discharge and waste manifest	material or chemical id; quantity; concentration; batch; discharge; treatment route; date	calibrated meter, inventory issue, laboratory record, and waste manifest	kg or m3	per batch or discharge	declared reporting period	wet or chemical component operations in scope	aggregate separately by material and treatment route	meter calibration; SDS; laboratory result; waste manifest
cp_component_yield_and_waste	component_fabrication	accepted components, scrap and rejects	production and scrap record	component id; material; started count or mass; accepted count or mass; rework; scrap; destination	production execution record reconciled to calibrated weight samples and waste records	count and kg	per batch	declared reporting period	all onsite component lines in scope	calculate accepted mass and material-specific scrap without double-counting rework	batch traveler; scale calibration; waste ticket; reconciliation
cp_direct_emissions	component_fabrication	direct air and water emissions	monitoring or permit-calculation record	pollutant; source; measured value; activity; factor or method; period; control device	direct monitoring or documented regulatory calculation method	pollutant-specific kg	monitoring or reporting interval	declared reporting period	all onsite sources attributable to included processes	aggregate pollutant-specific releases and document allocation of shared sources	calibration; laboratory report; permit method; calculation worksheet
cp_purchased_parts_bom	parts_receiving_and_kitting	purchased connector and adaptor components	product-specific bill of materials and receiving record	SKU; product form; interface; component function; material; supplier state; quantity; unit mass; supplier; lot	controlled BOM reconciled to purchase receipts, inventory movements and calibrated mass samples	kg	per BOM revision and receiving lot	declared reporting period	all represented SKUs and suppliers	calculate mass by component and material; weight product-mix shares by conforming output mass	approved BOM; supplier declaration; sample weighing; receiving inspection
cp_receiving_and_kitting	parts_receiving_and_kitting	incoming packaging, kitting energy, accepted parts and rejects	receiving, inspection, packaging and meter record	lot; component; accepted; rejected; reason; packaging material and mass; energy; date	receiving inspection system, calibrated scale and meter or documented allocation	kg and kWh	per lot or batch	declared reporting period	receiving and kitting area for represented production	aggregate accepted and rejected mass, packaging and energy by represented product	inspection record; scale and meter calibration; waste ticket
cp_termination_materials_and_energy	termination_and_endface	fibre, termination consumables and energy	batch traveler, material issue and equipment record	product id; fibre type; termination route; adhesive; polishing or cleaning consumable; issued and returned quantity; energy; batch	controlled issue records, equipment counters, calibrated scale and meter	kg, count, kWh or MJ	per batch	declared reporting period	all included termination and end-face lines	convert counts using product-specific measured mass and aggregate by route and product	BOM; batch traveler; scale and meter calibration; consumable lot trace
cp_termination_yield_and_waste	termination_and_endface	accepted interfaces, rework and termination waste	termination inspection and waste record	started units; accepted units; rework; fibre offcuts; polishing waste; adhesive waste; reject mass; destination	batch inspection record and calibrated waste weighing	count and kg	per batch	declared reporting period	all included termination routes	calculate accepted mass, rework and waste by route without double-counting	inspection record; scale calibration; waste manifest
cp_assembly_materials_and_energy	connector_adapter_assembly	assembly components, aids and energy	assembly BOM, issue, meter and machine record	product id; component; material; issued quantity; return; aid; energy; machine time; batch	controlled BOM and issue records with calibrated meter or physical-driver allocation	kg, kWh or MJ	per batch	declared reporting period	all connector and adaptor assembly lines in scope	aggregate net materials and energy by product and route	approved BOM; issue reconciliation; meter calibration; allocation worksheet
cp_assembly_yield_and_waste	connector_adapter_assembly	assembled product, rework and rejects	assembly production and reject record	started units or mass; accepted; rework; reject; failure mode; material; destination	production execution record and calibrated weighing	count and kg	per batch	declared reporting period	all assembly lines in scope	calculate assembled mass, rework and unrecovered rejects by product	batch record; scale calibration; reject disposition
cp_test_input_and_energy	inspection_and_optical_testing	products submitted, test energy and cleaning consumables	test-queue, meter and consumable record	product id; batch; submitted count and mass; equipment; energy; cleaning material; quantity; date	test execution system, calibrated meter and controlled consumable issue	count, kg, kWh or MJ	per test batch or meter interval	declared reporting period	all final inspection and optical-test stations in scope	aggregate submitted product, energy and consumables by product and test route	test queue; meter calibration; consumable reconciliation
cp_conforming_output_and_tests	inspection_and_optical_testing	conforming output and optical-performance evidence	serialized or lot test and inspection record	product form; interface; fibre type; end-face; wavelength; launch condition; method; instrument; calibration; insertion loss or attenuation; return loss; acceptance criterion; tested count; passed count; output mass	IEC-aligned or declared equivalent test procedure using calibrated equipment, linked to product and batch	dB, count and kg	per tested item or declared sample	declared reporting period	every represented product and test route	retain distributions and coverage by SKU; sum only conforming net output mass	raw test file; calibration certificate; end-face image or report; acceptance specification
cp_final_yield_rework_and_rejects	inspection_and_optical_testing	final yield, rework and rejects	disposition and rework-loop record	submitted; first-pass pass; rework route; retest; final pass; reject; failure mode; reject mass; destination	quality management system linked to production and test records	count and kg	per batch	declared reporting period	all products submitted to final quality assurance	calculate first-pass and final yield, rework and reject rates on one consistent count or mass basis	disposition approval; rework traveler; retest result; waste ticket
cp_packaging_bom_and_energy	packaging	outbound packaging, packaging energy and scrap	packaging specification, issue, meter and waste record	product id; packaging level; material; quantity; unit mass; issue; return; energy; scrap; date	controlled packaging BOM, calibrated sample weighing, issue reconciliation and meter	kg and kWh or MJ	per packaging batch and specification revision	declared reporting period	all packaging applied at plant gate	aggregate packaging and scrap by material and product; keep energy by carrier	approved packaging specification; scale and meter calibration; issue and waste reconciliation
cp_product_output_mass	packaging	net conforming reference-product mass	final production and shipment record	product id; conforming count; net unit mass; net product mass; packaging mass; lot; shipment date	calibrated scale or validated product-specific count-to-mass conversion, reconciled to shipments	kg	per production or shipment lot	declared reporting period	all represented products leaving the plant gate	sum net product mass excluding packaging and normalize inventory to 1 kg	scale calibration; product mass study; shipment reconciliation

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalize_reference_flow	every foreground inventory row	normalized amount = reporting-period amount attributable to represented production / net conforming output kg	all collection protocols; cp_product_output_mass	amount per 1 kg net conforming connector hardware	iso-14044-2006; iso-ts-14048-2002
calculate_product_mix	mixed-product dataset	variant share = conforming net mass of variant / total conforming net mass; apply variant-specific BOM, route, yield, test and packaging records before aggregation	cp_purchased_parts_bom; cp_conforming_output_and_tests; cp_product_output_mass	mass-weighted represented product mix	iso-14044-2006; iso-ts-14048-2002
calculate_count_to_mass	count-based component or product record	mass = item count × measured product-specific average net mass; retain sample size, variability and calibration evidence	applicable count record; measured mass study	kg by component or product variant	iso-ts-14048-2002
calculate_yield	component, termination, assembly and final-test stages	yield = accepted output on a declared count or mass basis / started input on the same basis; report first-pass and final yield separately where rework occurs	yield and disposition protocols	stage yield and rework rate	iso-ts-14048-2002
calculate_scrap_rate	manufacturing scrap and rejects	scrap rate = unrecovered scrap or reject mass / started material or submitted product mass on a consistent basis; report internal returns separately	waste and yield protocols	material-specific scrap or reject rate	iso-ts-14048-2002
allocate_shared_energy	shared meters and equipment	allocated energy = metered shared energy × documented causal driver share; disclose driver and reconcile shares to the meter total	energy protocols; machine-time, batch-time, sub-area or processed-mass driver	carrier-specific energy assigned to represented production	iso-14044-2006; iso-ts-14048-2002
calculate_test_coverage	end-face inspection, attenuation or insertion-loss, and return-loss tests	coverage = tested units / produced units for the same product and period; retain measured result distributions, failures, retests and acceptance criteria rather than only averages	cp_conforming_output_and_tests; cp_final_yield_rework_and_rejects	test coverage, pass rate and linked dB result distribution	iec-61300-3-4-2023; iec-61300-3-6-2008; iec-61300-3-35-2022
reconcile_mass_balance	each material-bearing process and total foreground system	compare material input with accepted output, internal transfer, returned material, waste, direct mass emissions and inventory change on consistent moisture and measurement bases; quantify and explain every residual	material, output, waste, emission and stock-change records	documented process and foreground mass-balance reconciliation	iso-14044-2006; iso-ts-14048-2002

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	reference product and represented mix	Every record shall identify product form, interface family, fibre compatibility, ferrule or alignment design, housing material system, end-face design, termination route, and applicable performance or environment grade; not-applicable fields shall be explicit.	controlled product master; drawing revision; product specification; production-mix calculation
dq_material_completeness	component and packaging bills of materials	Material composition and mass shall cover ferrule or lens, alignment element, housing or shell, sleeve, spring, boot, cap, adhesive or splice parts, and packaging as applicable; proprietary composition gaps and supplier proxies shall be disclosed.	approved BOM; supplier declaration; sample weighing; gap register
dq_temporal_geographic	all foreground records	Records shall cover the declared representative period or complete campaign and the actual production geography; substitutions from another period, plant, or supplier require justification.	record coverage report; facility list; production reconciliation
dq_measurement_traceability	mass, energy, water, emissions and waste	Retain instrument identity, calibration status, unit, reading interval, allocation driver, data owner, and reconciliation to source records.	calibration certificates; meter extracts; scale logs; utility and waste invoices
dq_optical_tests	end-face, attenuation or insertion-loss, and return-loss evidence	Retain product and batch linkage, test method, wavelength, launch condition, reference interface, equipment and calibration, sampling plan, acceptance criterion, raw result, failure, cleaning, rework and retest history.	raw test files; images; calibration certificate; controlled test specification; quality disposition
dq_yield_rework	every manufacturing stage	Use one declared count or mass basis per yield calculation; distinguish first-pass yield, rework, final yield and unrecovered rejects and prevent reworked product from being counted twice.	batch traveler; quality disposition; calculation worksheet; production reconciliation
dq_mass_balance	material-bearing processes	Reconcile all material inputs to accepted output, internal transfers, returns, waste, direct mass emissions and inventory changes; quantify and explain residuals without silently adjusting measured records.	signed mass-balance worksheet; stock-change record; waste manifest; emission record
dq_source_and_proxy	upstream datasets and estimates	Identify upstream dataset, geography, time, technology and supplied state for every material, energy carrier and treatment service; disclose proxy reason and expected direction of bias.	source register; supplier documentation; proxy assessment
dq_reviewability	complete foreground package	Preserve raw records, calculation formulas, source ids, exclusions, allocation choices and reviewer-accessible audit links so another practitioner can reproduce every normalized amount.	evidence index; calculation workbook; versioned extraction; review record

9. Validation Rules

rule_id	Applies to	Rule	Sources
validate_category_scope	product identity	Confirm that the reference product is standalone passive optical connector or adaptor hardware within CPC 46215 and not an optical cable, cable assembly as traded product, active transceiver or module, or unrelated connector.	unsd-cpc-3-0-structure
validate_reference_identity	reference flow	Require product flow 5f90c9f6-a484-428c-8846-89bece3a62ec, Mass property 93a60a56-a3c8-11da-a746-0800200b9a66, Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66, kg, and exactly 1 kg net conforming output excluding packaging.
validate_required_qualifiers	dataset metadata and product description	Fail completeness when product form, interface, fibre type, ferrule or alignment material, housing material, end-face or optical-interface design, termination route, test basis, yield, packaging, environment grade, geography, period, or product-mix shares are missing or silently marked generic.	iec-61754-1-2013; iec-61755-3-1-2024; iec-61753-1-2018
validate_process_route	process inventory	Require all required processes and every applicable conditional process; verify that purchased components are not used to hide onsite fabrication and that a bare adaptor is not assigned a fibre-termination route without evidence.	foa-fiber-optic-termination; iso-ts-14048-2002
validate_optical_testing	final quality assurance	Require declared insertion-loss or attenuation and return-loss method, wavelength, launch and reference conditions, equipment calibration, acceptance criterion, test coverage, raw results, failures, cleaning, rework and retest records; end-face inspection alone is not optical-performance qualification.	iec-61300-3-4-2023; iec-61300-3-6-2008; iec-61300-3-35-2022; iec-tr-62627-01-2023
validate_yield_and_rework	production normalization	Verify first-pass yield, final yield, rework loops and unrecovered rejects on consistent bases; all repeated process burdens shall be included and reworked conforming output shall be counted once.	iso-14044-2006; iso-ts-14048-2002
validate_material_balance	materials and waste	Require material-specific reconciliation of inputs, accepted output, transfers, returns, waste, direct mass emissions and stock changes; unexplained residuals shall be reported as a finding, not forced to zero.	iso-14044-2006; iso-ts-14048-2002
validate_packaging	plant-gate output	Require material-specific primary, secondary and tertiary packaging and packaging scrap; confirm packaging is inventoried but excluded from the 1 kg net reference-product mass.	iso-14044-2006; iso-ts-14048-2002
validate_no_leaf_extrapolation	representativeness	Reject an unqualified claim that a single connector specification, material system, test grade, factory or product route represents the whole CPC 46215 leaf.	unsd-cpc-3-0-structure; iec-61753-1-2018
validate_sources_and_proxies	evidence and upstream data	Require traceable foreground records and source ids for method constraints, disclose every upstream proxy and skipped check, and mark validation inconclusive when a required record or identity cannot be verified.	iso-ts-14048-2002

10. Published Dataset Profile

Field	Value
dataset_role	unit_process or aggregated_process for connector-manufacturing foreground data; may be published as a secondary_dataset or background_dataset after review
downstream_use	LCA process and lifecyclemodel construction for data centres, communication networks, power-grid automation, industrial control and other applications using matching passive optical connector hardware
allowed_use	Product-specific or disclosed production-mix studies whose connector form, interface, fibre type, materials, end-face design, termination route, performance grade, geography, period and system boundary match this dataset
excluded_use	Optical fibre or cable production; connectorized cable assemblies as a whole; active optical modules or transceivers; another connector interface or material system without representativeness review; unqualified CPC-wide averages
required_metadata	canonical PCR id; reference-flow UUID; product form; interface and channel count; fibre type; ferrule or alignment element and housing materials; end-face design; termination and assembly route; optical-test methods and coverage; yield, rework and rejects; packaging; geography; period; represented product-mix shares; upstream datasets; allocation and exclusions
required_quality_disclosure	foreground-record coverage; BOM and packaging completeness; meter and scale calibration; count-to-mass sampling; mass balance; first-pass and final yield; test distributions and failures; proxy register; data-quality requirements and validation checks skipped
update_trigger	Material change in connector form, interface, fibre compatibility, ferrule or alignment technology, housing material, end-face design, termination or assembly route, test method or acceptance criterion, product-mix shares, yield, packaging, supplier dataset, production geography, reporting period or allocation method

11. Data Sources

Source id	Type	Reference	Used for
unsd-cpc-3-0-structure	Dataset (dataset)	United Nations Statistics Division, CPC Version 3.0 Structure, 30 June 2025, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Structure_30Jun2025.csv (retrieved 2026-08-09)	Authoritative CPC 46215 category identity and separation from optical-fibre cable categories
iec-61754-1-2013	Standard (standard)	IEC 61754-1:2013, Fibre optic connector interfaces — General and guidance, https://webstore.iec.ch/en/publication/5816 (retrieved 2026-08-09)	Connector plug, adaptor and receptacle forms; interface declaration
iec-61755-3-1-2024	Standard (standard)	IEC 61755-3-1:2024, Connector parameters for single-mode physically contacting fibres with cylindrical zirconia ferrules, https://webstore.iec.ch/en/publication/64487 (retrieved 2026-08-09)	Evidence that ferrule material, size, fibre interface and performance variant are product-specific and must be declared rather than generalized
iec-61753-1-2018	Standard (standard)	IEC 61753-1:2018, Performance standard — General and guidance, including Amendment 1:2020, https://webstore.iec.ch/en/publication/31424 (retrieved 2026-08-09)	Operating-service environment and performance-category declaration; product-specific performance tests
iec-61300-3-4-2023	Standard (standard)	IEC 61300-3-4:2023, Examinations and measurements — Attenuation, https://webstore.iec.ch/en/publication/68498 (retrieved 2026-08-09)	Attenuation or insertion-loss measurement method and test-record requirements
iec-61300-3-6-2008	Standard (standard)	IEC 61300-3-6:2008, Examinations and measurements — Return loss, https://webstore.iec.ch/en/publication/5247 (retrieved 2026-08-09)	Return-loss definition and measurement-record requirements
iec-61300-3-35-2022	Standard (standard)	IEC 61300-3-35:2022, Visual inspection of fibre optic connectors and fibre-stub transceivers, https://webstore.iec.ch/en/publication/64254 (retrieved 2026-08-09)	End-face cleanliness, scratches and defect inspection; inspection does not replace attenuation and return-loss qualification
iec-tr-62627-01-2023	Official guidance (official_guidance)	IEC TR 62627-01:2023, Fibre optic connector cleaning methods, https://webstore.iec.ch/en/publication/72878 (retrieved 2026-08-09)	Cleaning route and consumable scope for plugs, adaptors, receptacles and protective caps
foa-fiber-optic-termination	Handbook (handbook)	Fiber Optic Association, Fiber Optic Termination and Singlemode Termination and Polishing, https://www.thefoa.org/tech/ref/basic/term.html and https://www.thefoa.org/tech/ref/termination/sm.html (retrieved 2026-08-09)	Generic process decomposition for attachment, cleaving, adhesive or splice routes, polishing, inspection and optical testing; no CPC-wide numeric defaults taken
iso-14044-2006	Standard (standard)	ISO 14044:2006, Environmental management — Life cycle assessment — Requirements and guidelines, confirmed 2022, https://www.iso.org/standard/38498.html (retrieved 2026-08-09)	Goal and scope, inventory, allocation, reporting and review method
iso-ts-14048-2002	Standard (standard)	ISO/TS 14048:2002, Environmental management — Life cycle assessment — Data documentation format, confirmed 2025, https://www.iso.org/standard/29872.html (retrieved 2026-08-09)	Transparent foreground collection, calculation, documentation and data-quality evidence