GJFJH 1F G.657.A1 LSZH Simplex Indoor Fiber Optic Cable

GJFJH

Quick Answer for Buyers

This 1F tight-buffered indoor fiber cable is specified in the supplied BWNFiber working record with G.657.A1 fiber, a white 0.9 mm PVC tight buffer, aramid-yarn strength members and a yellow LSZH outer sheath. The working record lists a 2.8–2.95 mm outside diameter. Before approval for a US project, confirm the source datasheet, the exact flame or building rating required for the route, the short-term tensile and crush values, and the documents that will accompany the order.

Configuration at a Glance

Cable Construction

Optical Characteristics

These are factory-length cable-fiber values in the supplied working record. They are not a complete installed link budget and do not include connectors or splices.

Mechanical and Environmental Limits

D means the finished cable outside diameter. Do not substitute the fiber-grade bend performance for the finished-cable bend limit.

Values Withheld Pending Source Confirmation

The supplied V4 contains two unlabeled rows, “Short term: 150” and “Short term: 500.” Their parameter names and units cannot be recovered safely from the delivered file. Engineering must confirm whether they are short-term tensile and crush limits and supply the exact units before they are shown to buyers.

The source notes also flag unresolved PMD units and mode-field-diameter rows whose source unit is recorded as nm. Those values remain omitted rather than silently corrected.

Interfaces and Connector Options

This record describes bulk cable, not a finished connectorized assembly. Connector type, end-face polish, end A/end B, finished length, insertion-loss limit and return-loss limit are therefore TBC — source required if a terminated assembly is requested. Do not add SC, LC, UPC or APC options to this page unless they are supported by a separate assembly BOM and test plan.

Compatibility and Application Conditions

ITU-T G.657 (08/2024) describes Category A bend-insensitive single-mode fiber as compliant with G.652.D fiber characteristics and suitable for access, transport and other space-constrained networks. That general relationship supports the fiber-grade description; it does not certify this finished G.657.A1 LSZH simplex cable for a particular building pathway.

Evaluate this configuration for a protected indoor route only after confirming:

• the route, pathway, bend points and pulling method;
• the required US fire, smoke or building classification and model-specific evidence;
• whether the cable will be spliced, field terminated or used as part of a separately specified assembly;
• the maximum installation load, service environment and cable-management hardware; and
• whether the project requires a current datasheet, construction drawing, material declaration or test record.

Do not infer plenum, riser, OFNP, OFNR, UL listing, outdoor, UV, water-blocking or direct-burial suitability from the term “LSZH.”

How to Select This Configuration

1. Confirm that the requirement is for one fiber, not a duplex link or a higher-count distribution cable.
2. Confirm that G.657.A1 is the required fiber grade and record the applicable project standard.
3. Confirm that a tight-buffered simplex construction is appropriate for the termination plan.
4. Approve the 0.9 mm buffer and 2.8–2.95 mm finished diameter against the pathway and hardware.
5. Specify the exact flame, smoke, halogen or building-rating evidence required in the United States; “LSZH” alone is not an approval criterion.
6. Confirm tensile, crush, bend and temperature limits against the original datasheet.
7. State total length, cut length per reel or roll, quantity, marking and destination.
8. List every approval file that must be supplied before production or shipment.

Differences From Related BWNFiber Drafts and Pages

Testing and Quality-Control Requirements

No product-specific test report was included with the delivered V4 file. Before approval, request and review the test plan for the exact ordered configuration. At minimum, define:

• attenuation test wavelengths and acceptance limits;
• measured cable length and fiber identification;
• dimensional inspection points;
• tensile, crush and bend methods where contractually required;
• temperature or environmental evidence where required by the project; and
• the report format, lot/reel identity and approval owner.

This section is a buyer approval checklist, not a claim that BWNFiber has completed or passed a named test for this configuration.

Packaging and Procurement Information

Standard reel or roll length, reel dimensions, net/gross weight, moisture protection, export marks, MOQ, lead time, warranty and country-specific documentation are TBC — source required. Confirm these items in the quotation rather than publishing defaults from another cable model.

Information Required for an RFQ

For an indoor fiber cable RFQ, send the following information with the quotation request:

• product: GJFJH 1F G.657.A1 LSZH simplex indoor fiber optic cable;
• total cable length and required length per reel or roll;
• quantity and delivery destination;
• required cable marking, label and packing marks;
• indoor pathway and termination method;
• required fire, smoke, halogen or building-rating evidence;
• required datasheet, drawing, declaration and test records; and
• any contractual optical, mechanical or dimensional acceptance limits.

Primary CTA: Send the cable schedule and approval-document list for a configuration review and quotation.

Downloads

• Product datasheet: TBC — approved source PDF required
• Construction drawing: TBC — engineering-approved drawing required
• Material and jacket declaration: TBC — source required
• Model-specific test report: TBC — order/lot-specific source required

Do not create placeholder download links.

What exact configuration does this page cover?

It covers the supplied working configuration for a GJFJH cable with one G.657.A1 fiber, a 0.9 mm tight buffer, aramid-yarn strength members and a yellow LSZH outer sheath. Other fiber grades, diameters and counts require separate records.

Is this a bulk cable or a connectorized patch cord?

The supplied record describes bulk cable. No connector, polish type, end configuration or finished assembly test limit is included.

What is the finished cable diameter?

The working record lists 2.8–2.95 mm. Engineering should confirm whether the commercial name should use a nominal 3.0 mm designation.

Does G.657.A1 describe the whole cable?

No. G.657.A1 identifies the optical fiber category. The finished cable’s buffer, strength members, sheath, dimensions and mechanical limits must be approved separately.

Can this cable be used with a G.652.D network?

ITU-T G.657 Category A fiber is specified as compliant with G.652.D fiber characteristics. System approval still requires the link design, splices, connectors and installed-loss budget.

Does LSZH mean the cable is plenum- or riser-rated in the United States?

No. LSZH is a material or performance description, not automatic proof of OFNP, OFNR, UL or code acceptance. Request the exact rating and test evidence required by the project authority.

What bend limit applies?

The working record lists 10D for long-term routing and 20D for short-term handling. Use the finished cable diameter for D and verify the values against F0496 before release.

What attenuation values are listed?

The working record lists ≤ 0.35 dB/km at 1310 nm and ≤ 0.21 dB/km at 1550 nm. These values do not include connector or splice losses.

Which short-term mechanical loads apply?

They are not approved for order release from the delivered file. Two short-term numbers appear without recoverable parameter names or units; engineering must map them to the original source rows.

Can this cable be installed outdoors?

Outdoor, UV, moisture, water-blocking and direct-burial suitability are not established by the supplied record. Treat it as an indoor-only candidate unless a model-specific document states otherwise.

What documents should be approved before ordering?

Approve the current datasheet, construction drawing, fiber and jacket declaration, dimensional and mechanical limits, required rating evidence and any contractual test-report format.

What should be included in the quotation request?

State the exact product, route, length, length per reel or roll, quantity, marking, destination, required rating evidence, acceptance limits and approval documents.