Compliance column
Require comply/deviate/unknown against every line.
Procurement guides
How to Write a Technical RFQ for Optical Transceivers
A usable quotation starts with one controlled requirement table, not a list of ambiguous part names.
Separate required, preferred and optional fields. Use one row per orderable item with a stable line ID so every supplier answers the same engineering and commercial scope.
Ask for deviations explicitly and require evidence references, sample gates, production controls and delivery basis. A low price without matched scope is not comparable.
MingApex coordinates China-based sourcing, OEM execution and independent quality-control evidence. It is not presented as the product manufacturer or an accredited laboratory; supplier identity, method and evidence boundary remain explicit.
01 / Decision inputs
Freeze the variables before comparing options
Issue one version-controlled line-item matrix.
| Required input | What to record | How it changes the decision |
|---|---|---|
| Host tuple | Platform, software, port mode and FEC | Defines compatibility target. |
| Optical spec | Rate, form, reach, wavelength and fibre | Defines physical product. |
| Link context | Loss, connectors, temperature and peer | Defines operating boundary. |
| Coding/OEM | EEPROM target, label, serial and packaging | Defines identity work. |
| Quantity | Sample, pilot, production and forecast | Drives MOQ and capacity. |
| Evidence | Required reports, photos, traceability and gate | Makes claims auditable. |
| Commercial | Currency, Incoterm, destination, warranty and date | Makes landed offers comparable. |
02 / Engineering comparison
Compare on measurable engineering criteria
Normalize every response before ranking suppliers.
Assumption log
Expose substituted wavelengths, coding, lead time or terms.
Evidence index
Name each offered document and responsible source.
Price basis
Separate sample/NRE, unit, freight, tax and tooling.
Milestones
Date sample, approval, production and shipment gates.
03 / Product anchors
Live product examples for a controlled starting point
These live SKUs anchor the physical family. Suitability still depends on the documented host, fibre path and validation scope.
Live product page10G SFP+ 1310nm LR 10km LC TransceiverSingle-mode LR referenceLive product page25G SFP28 1310nm LR 10km LC Transceiver25G FEC and lane referenceLive product page100G QSFP28 LR4 10km LC TransceiverFour-wavelength duplex-LC referenceLive product page400G QSFP-DD FR4 2km LC Transceiver400G duplex-LC thermal reference
A product page is a starting specification, not universal compatibility or lot-acceptance evidence.
04 / Decision patterns
Choose by evidence, not shorthand
A quote is comparable only when scope and exceptions match.
Preferred path
Release the RFQ when every line has a stable ID, required technical tuple, evidence gate, quantity and commercial basis.
Conditional path
Allow alternatives only in a separate deviation column with technical impact, price effect and validation requirement.
Stop and redesign
Stop evaluation when a supplier answers a different specification or hides critical assumptions.
Revalidation trigger
Reissue or revise the RFQ after any host, specification, quantity, evidence, OEM artwork, delivery basis or deadline change.
05 / Validation path
From requirement lock to approved order line
Archive the issued RFQ, supplier response and clarification log as one package.
- 1
Freeze the requirement
Record the exact host, port, data rate, reach, fibre path and commercial scope for Writing a technical RFQ.
- 2
Compare complete architectures
Include optics, fibre, connectors, power, cooling, software and operational constraints—not only unit price.
- 3
Define measurable acceptance
Set loss, telemetry, link, error, traffic and documentation criteria before selecting the sample.
- 4
Validate the named configuration
Test the serialized sample on the recorded setup and close deviations with an owner and deadline.
- 5
Bridge approval to production
Match the approved identity, revision, coding and critical attributes to the production lot and repeat order.
06 / Risk control
Failure modes that invalidate the decision
Part-name RFQ
Reach labels replace engineering requirements.
Hidden deviation
A supplier prices a different item.
Price-only rank
Freight, evidence and qualification cost are omitted.
Moving baseline
Clarifications change scope without version control.
07 / Evidence
Downloadable process references
08 / Buyer questions
Guide-specific questions
What does this guide decide?
An RFQ requests an offer; it does not approve compatibility, quality, supplier claims or a production lot. Every quoted assumption and exception must remain visible.
What must the buyer provide?
Provide the engineering owner, line-item list, host/link tuples, volumes, required evidence, destination and decision dates.
When is the preferred path conditional?
Allow alternatives only in a separate deviation column with technical impact, price effect and validation requirement.
What must be revalidated?
Reissue or revise the RFQ after any host, specification, quantity, evidence, OEM artwork, delivery basis or deadline change.
Connected authority paths
Continue through compatibility, quality and evidence
Controlled next step
Turn the requirement into a comparable RFQ.
Send the host, optics, quantity, evidence and delivery fields to open a structured RFQ.