GJFJH
GJFJH 1F G.657.A2 5.0mm LSZH Tight-Buffered Indoor Fiber Optic Cable
GJFJH 1F G.657.A2 5.0mm LSZH Tight-Buffered Indoor Fiber Optic Cable for indoor building or equipment-room routes at 1F. Confirm jacket and fiber grade before quoting.

Configuration summary
The proposed BWNFiber P166 record covers one G.657.A2 fibre in a tight-buffered GJFJH indoor cable construction. The supplied record describes a white 0.9 mm LSZH tight buffer, aramid yarn, a black 3.0 ± 0.2 mm PVC inner sheath and a black 5.0 ± 0.2 mm LSZH outer sheath.
This page is limited to the 1F / G.657.A2 / 5.0 ± 0.2 mm / black LSZH outer-jacket configuration. Other GJFJH fibre grades, diameters or constructions require a separate product record and quotation review.
Engineering review notice: The source record is marked
NEEDS REVIEW. Attenuation and temperature values are withheld because the supplied source summary reports conflicting rows. The values below remain subject to the current controlled datasheet, drawing and BWNFiber engineering approval.
Cable construction
| Layer / item | Supplied P166 record |
|---|---|
| Fibre count | 1F |
| Fibre category | G.657.A2 |
| Tight buffer | 0.9 mm, white LSZH |
| Strength member | Aramid yarn, 1500D — engineering confirmation required |
| Inner sheath | 3.0 ± 0.2 mm, black PVC |
| Outer sheath | Black LSZH |
| Finished cable diameter | 5.0 ± 0.2 mm |
| Cable weight | 22.5 kg/km — engineering confirmation required |
The LSZH label describes the supplied outer-jacket material. It does not, by itself, establish a US riser, plenum or other project-specific flame, smoke or halogen rating. Approve any mandatory rating against evidence for the exact model and revision.
Supplied technical values pending engineering approval
Optical fibre characteristics
| Parameter / condition | Supplied value |
|---|---|
| Mode field diameter at 1310 nm | 8.6 ± 0.4 µm |
| Cladding diameter | 125 ± 0.7 µm |
| Macrobending loss, 15 mm radius / 10 turns, 1550 nm | ≤ 0.03 dB |
| Macrobending loss, 15 mm radius / 10 turns, 1625 nm | ≤ 0.1 dB |
| Macrobending loss, 10 mm radius / 1 turn, 1550 nm | ≤ 0.1 dB |
| Macrobending loss, 10 mm radius / 1 turn, 1625 nm | ≤ 0.2 dB |
| Macrobending loss, 7.5 mm radius / 1 turn, 1550 nm | ≤ 0.5 dB |
| Macrobending loss, 7.5 mm radius / 1 turn, 1625 nm | ≤ 1.0 dB |
These values describe fibre geometry or a defined macrobending test. They do not establish the minimum installation or service bend radius of the finished 5.0 mm cable. Use the approved cable-level limit for routing and handling.
Mechanical test entries
| Test / condition | Supplied P166 entry | Approval status |
|---|---|---|
| Dynamic load, short term | 400 N; fibre strain < 0.4%; no residual additional loss | TBC — test method, duration and specimen required |
| Crush | 800 N/100 mm; no fibre breakage | TBC — short/long-term condition and method required |
| Impact | 1 N·m; no fibre breakage | TBC — method and impact count required |
| Cable bend test | 5 × cable diameter; no fibre breakage | TBC — loaded/unloaded state, cycles and optical criterion required |
Values withheld pending reconciliation
| Field | Status | Required correction |
|---|---|---|
| Cable attenuation | TBC — source conflict | Reconcile 0.38 / 0.28 dB/km with ≤0.36 / 0.22 dB/km; identify wavelength, maximum/typical status, test object and controlling revision |
| Installation temperature | TBC — source conflict | Confirm the correct range and test/handling condition |
| Operating temperature | TBC — source conflict | Confirm the correct range and scope |
| Storage/transport temperature | TBC — source conflict | Confirm the correct range and scope |
| UV performance | TBC — source label issue | A temperature range must not be presented as proof of UV protection |
Application and compatibility boundary
The proposed role is an unconnectorized bulk cable for a documented indoor route. Before approval, confirm the pathway, support and pulling method, termination or splicing plan, bend path, required building rating, temperature conditions and the exact acceptance documents.
This page does not establish a connector type, polish, polarity or equipment compatibility. If the requirement is for a factory-terminated link, specify a separate pigtail, patch cord or pre-terminated assembly with its own BOM, drawing and optical acceptance criteria.
For broader selection, compare indoor fiber cable families or select fiber optic cable by route and construction. For a separate termination workflow, review fiber cable termination methods.
How to approve this configuration
- Confirm the exact P166 model/SKU and the revision of the datasheet and construction drawing.
- Verify that
1F,G.657.A2,0.9 mm tight buffer,3.0 mm PVC inner sheathand5.0 ± 0.2 mm black LSZH outer sheathdescribe one controlled configuration. - Resolve the attenuation, temperature and finished-cable bend-limit entries.
- State the indoor route, termination method and required fire/smoke/building evidence.
- Agree on the applicable dimensional, mechanical and optical inspection records.
- Freeze the approved configuration, marking, packing and accepted deviations before production.
Information required for an RFQ
Send the following in one request:
- Product reference: P166 GJFJH 1F G.657.A2 5.0 mm LSZH Tight-Buffered Indoor Fiber Optic Cable.
- Indoor route and installation method.
- Termination or splicing method.
- Total length, required length per reel or roll and quantity.
- Cable marking text and delivery destination.
- Required building/fire/smoke evidence and document language.
- Datasheet, drawing, inspection, test-record or sample requirements.
- Any required revision, approval or deviation-control process.
Datasheet, drawing and test documents
| Document | Current offline status |
|---|---|
| Controlled product datasheet | TBC — source required |
| Revision-controlled construction drawing | TBC — source required |
| Fibre specification / declaration | TBC — source required |
| Mechanical test method and record format | TBC — source required |
| Jacket / project-rating evidence | TBC — source required |
| Marking and packing plan | TBC — source required |
Request a configuration review
Send the P166 configuration for review with the route, termination method, length, reel plan, marking, destination and required documents. BWNFiber must confirm the controlled product record, unresolved values and quotation assumptions before order approval.
Image
Use the supplied GJFJH 1F 5.0mm Fiber Cable G657A2.webp only after confirming that it represents this exact record and may be used on the page.
- Alt:
Cutaway illustration of GJFJH 1F G.657.A2 5.0 mm indoor cable construction - Caption:
Supplied construction illustration showing an outer LSZH jacket, aramid yarn, a PVC inner sheath and a white LSZH tight buffer. Confirm the controlled drawing before technical approval.
Frequently asked questions
Which exact configuration does this page cover?
It covers the proposed P166 record: GJFJH, 1F, G.657.A2, a white 0.9 mm LSZH tight buffer, a black 3.0 ± 0.2 mm PVC inner sheath and a black 5.0 ± 0.2 mm LSZH outer sheath. A different fibre grade, diameter or construction should use a separate controlled record.
Is this cable supplied with connectors?
No connector is specified in the supplied record. Treat it as bulk cable unless a separate terminated-assembly BOM and drawing are approved.
What are the inner and outer sheath layers?
The supplied record describes a 3.0 ± 0.2 mm black PVC inner sheath and a 5.0 ± 0.2 mm black LSZH outer sheath. Engineering must confirm the final terminology and drawing before publication.
Does G.657.A2 define the finished-cable bend radius?
No. G.657.A2 defines fibre attributes and macrobending performance under stated test conditions. The finished cable needs its own installation and service bend limits.
Why are attenuation values withheld?
Two source-table summaries report different attenuation pairs. The controlling wavelengths, value type, test object and revision must be reconciled before a public rating is used.
Which temperature range applies?
TBC. The source summary contains inconsistent temperature rows and a label mismatch. Installation, operation and storage/transport conditions must be confirmed separately.
Does an LSZH jacket prove a US riser or plenum rating?
No. LSZH is a material description. A project-specific rating requires evidence for the exact cable model and the applicable test or approval requirement.
What should be confirmed for the mechanical test entries?
Confirm the test method, specimen, applied load or energy, duration or cycle count, short- or long-term condition and optical/physical pass criterion.
What documents should a buyer request before approval?
Request the current datasheet, construction drawing, fibre and jacket declarations, condition-labelled mechanical and temperature limits, required rating evidence, marking/packing plan and applicable inspection or test-record format.
What should be included in an RFQ?
Include the exact product reference, route, termination plan, total length, reel/roll length, quantity, marking, destination, required rating and document list. Keep every field tied to one approved revision.
Related Products
Explore additional fiber optic products related to this item and suitable for similar network deployment needs.