QUOTATION BASIS
custom fiber optic cable manufacturers
A reply from custom fiber optic cable manufacturers is usable when each plant answers the same bill of materials. LinkScope Sourcing 23 lines up the exclusions before factories write numbers, so a cut patch is not scored against a full reel by accident.
- Fiber designation and count
- Reel or assembly length
- Connectors in or out
- Test documents named
Evidence ledger each manufacturer should fill
The ledger is a checklist for the packet, not a claim that a plant has already been visited.
Exact construction name, fiber designation, core count, and the manufacturer model or drawing number used for the reply. A family name is not an identity.
Mode, nominal geometry, and the wavelength columns the loss table uses. Ask for attenuation at 1310 nm and 1550 nm on OS2, or at 850 nm and 1300 nm on OM4, plus insertion loss and return loss if the ends are factory terminated. Chromatic dispersion in ps/nm·km, sometimes near 18 ps/nm·km at 1550 nm on G.652.D, is a long-haul question, not a default this desk publishes. Optical budget, receiver sensitivity, and transmit power stay with the optics, not with the cable rate.
Compound, indoor or outdoor rating, and whether the print legend matches the datasheet. Armoring and gel or dry water-blocking stay on this row.
Bulk, field-terminated, or factory-terminated. Connector family, polish, polarity, and whether loss was measured on the finished ends.
Currency, Incoterm or equivalent, quantity unit, freight, duties, and which charges sit outside the unit rate. A target budget uses the same slice.
Current datasheet, test report, and any compliance file the supplier says applies to that model. ISO 9001, FCC, or NRTL evidence is requested when the item needs it. This site does not issue those files.
Questions that keep two manufacturers on one basis
Which costs are excluded?
Connectors, splice closures, pulling grips, reel deposits, factory inspection, and commissioning sit outside a glass rate unless the quotation lists them. Ask each plant to mark included or excluded on the same lines.
What bend radius is stated?
Ask whether the datasheet states a 10 mm or a 7.5 mm minimum for the fiber you named, and whether that figure is under load or after installation. A G.657.A2 question is not a result from this desk.
How is length tolerance written?
A 2 km reel, a 100 m indoor distribution cut, and a 3 m duplex patch use different tolerances. Record the unit and the plus-or-minus the supplier accepts before you rank the rates.
Who owns the deviation?
UPC is the usual argument for a flat digital port, with return loss often discussed near 50 dB. APC is the other argument when the specification wants an angled end and a higher return-loss target near 60 dB. If a plant substitutes OM4 for OM3, or APC for UPC, the reply should label that substitution. You decide whether it is acceptable. The desk does not convert a deviation into a match.
A public sourcing directory checked on 2026-10-27 can show that buyers ask factories for quotations. It does not transfer that directory's stock, prices, or coverage to this desk. Inquiry cards stay labels until a named supplier answers.
Send the bill of materials in the brief
The form has no file upload. Describe the drawing, the core count, and the connector schedule in the requirement field, then send the file after the initial reply. Quantity, US destination, and timing belong in the same message.
Optional budget: amount or range, currency, and whether it is per meter, per kilometer, per reel, per assembly, or the whole order. Supplier preference is high-end, mid-range, budget, or undecided. That preference is yours. It is not a verified rating, and you do not need a live quotation to submit.