GJFJH 1F G655E 1.9mm LSZH Simplex Indoor Fiber Optic Cable

GJFJH

Configuration summary and approval status

This engineering-review draft describes a proposed 1-fiber GJFJH tight-buffered indoor cable with a G.655.E fiber designation, LSZH outer sheath and 1.9±0.01 mm finished diameter. Do not use it for a purchase order, quotation comparison or publication until BWNFiber confirms whether the source record is G.655.E or G.652.D and issues a signed model datasheet.

Current hold: the supplied heading says G.655.E, but the traced XLS/PDF/image names and the existing BWNFiber product owner say G652D OD2.0.

Primary action: Request an engineering configuration review.

What this product record covers

If approved, this page should cover one exact configuration only:

• one optical fiber (1F) in a simplex indoor cable;
• GJFJH construction;
• one confirmed fiber grade;
• one confirmed finished-cable diameter and tolerance;
• one confirmed LSZH material declaration and any separately approved rating evidence;
• the mechanical, optical and temperature limits on the signed datasheet.

It should not own broad indoor-cable selection, GJFJH family comparison, outdoor use, connector compatibility or installation guidance. Those tasks belong to the category or dedicated guides.

Key configuration fields

An LSZH label describes a material characteristic. It does not by itself prove a project-required flame, smoke, halogen or building-code rating. Approve the exact test or rating evidence for the selected cable.

Construction and draft specifications

The following values are preserved from the supplied V4 record for engineering review. They are not approved publication claims.

Optical characteristics and link-loss boundary

These are proposed fiber/cable values, not a complete installed-link budget. Connectors, splices, cable length, wavelength, test method and engineering margin must be included in the final link calculation. ITU-T G.655 also warns that its generic attenuation coefficients should not simply be applied to short indoor or jumper cables; the exact finished-cable specification governs.

PMD values from the source record remain omitted because their units are missing.

Mechanical, temperature and installation limits

Do not convert 10D or 20D into a fixed millimeter value until the approved finished diameter and the source definitions are confirmed. Do not extend an indoor-cable statement to outdoor, wet, UV-exposed or building-entry routes without exact model documentation.

How to approve the correct configuration

1. Confirm whether the fiber is G.652.D or G.655.E.
2. Match the product name, drawing number, datasheet revision and physical sample.
3. Confirm the finished diameter and tolerance; do not replace 1.9±0.01 mm with a generic 2 mm label.
4. Restore the missing mechanical table headers and all PMD units.
5. Approve the LSZH material declaration and any project-required rating/test evidence separately.
6. Confirm the intended indoor route, termination method, bend conditions and pulling method.
7. Approve cable marking, color, length per reel/roll, reel labeling and destination requirements.
8. Record any deviation before quotation approval and sample release.

Differences from related pages

Documents to request before purchase

• current signed datasheet and drawing;
• confirmed fiber designation and supplier/fiber declaration;
• cable construction, dimensions and mass;
• tensile, crush, bend and temperature definitions with units;
• LSZH material declaration and project-required test/rating evidence;
• approved cable marking and color;
• reel/roll length and packaging plan;
• agreed inspection/test deliverables for the finished cable;
• sample or first-article approval record where required;
• deviation record for any difference from the RFQ.

RFQ checklist

Send BWNFiber the following information for configuration review:

• product reference: P118 / GJFJH, subject to identity confirmation;
• required fiber designation and project wavelength plan;
• 1F simplex construction requirement;
• finished diameter and allowed tolerance;
• jacket material and exact rating/test requirement;
• indoor route, pathway and termination method;
• bend, tensile, crush and temperature requirements;
• total cable length, length per reel or roll and quantity;
• sheath color, cable marking and reel label;
• destination and required approval documents.

CTA: Request a GJFJH configuration and source-record review before quotation approval.

Does this page describe G.652.D or G.655.E fiber?

The supplied heading says G.655.E, while the traced source filenames and the existing BWNFiber product owner say G652D OD2.0. The product identity must be resolved before quotation approval or publication.

Is this a one-fiber simplex cable?

The supplied record lists 1F and simplex construction. Treat both as TBC until the signed datasheet and drawing are approved.

Is the finished diameter 1.9 mm or 2.0 mm?

The supplied draft lists 1.9±0.01 mm. Do not round this to a generic 2.0 mm in a drawing, RFQ or quotation unless engineering approves the change.

Does LSZH prove that the cable meets an indoor fire code?

No. LSZH naming alone is not a project approval. Request the exact material declaration and the flame, smoke, halogen or building-rating evidence required by the project authority.

What do the 10D and 20D bend limits mean?

D normally refers to the approved finished cable diameter, but the source must confirm which limit applies during installation and which applies in service. Do not calculate a fixed radius from this draft.

Are the listed attenuation values a complete link-loss allowance?

No. A link budget also includes the installed length, splices, connectors, wavelength, test method and design margin. The cable values also require source approval.

Can this cable be used outdoors?

Not on the basis of this record. Use it only for a route explicitly covered by the final model documentation. Moisture, UV exposure, temperature and building-entry requirements need separate confirmation.

What should an RFQ include?

Include the confirmed fiber designation, count, structure, diameter/tolerance, jacket and rating requirement, route, handling limits, total length, reel/roll plan, quantity, marking, destination and approval-document list.