Receiving inspection should confirm that delivered transceivers match the approved purchase requirement and remain traceable before they enter production inventory. It is not a substitute for supplier qualification or full reliability testing. Use a risk-based plan that checks identity, quantity, packaging, physical condition, coding and selected functional samples without contaminating or damaging unused optics.

Start from the approved order record

The receiving team needs more than a product nickname. Prepare an expected-item list with:

• Purchase order line and internal part reference.
• Data rate, form factor and optical or electrical application.
• Reach class, wavelength or BiDi pair, connector and fiber type.
• Temperature grade where required.
• Host coding profile and approved software context.
• Quantity, spare allocation and agreed documentation.
• Supplier lot, date or serial traceability requirements.

Keep commercial acceptance criteria separate from unverified marketing descriptions. If a field was not agreed before shipment, do not invent it at receiving.

Check shipment identity and quantity

Compare cartons, packing list and individual labels with the order. Verify quantities by line item and isolate shortages, overages or mixed items.

Pay special attention to products that look identical externally. Fixed DWDM channels, complementary BiDi sides, temperature grades and host coding profiles can be confused if the label is incomplete. Do not release a mixed tray into a generic SFP bin.

Photograph discrepancies before repacking. Record the purchase order, carton, item label and affected quantity so the supplier can trace the issue.

Inspect packaging and handling condition

Check for crushed cartons, moisture, broken seals, missing protective caps or compromised electrostatic-discharge packaging. Follow the module and host handling instructions. Do not touch optical interfaces or exposed contacts.

An intact outer carton does not prove that each module is usable, but damaged packaging is evidence that the lot needs closer review. Quarantine affected units until disposition is decided.

Inspect physical condition without contaminating the optic

Look for damaged latches, deformed cages, loose parts, cracked connectors, missing caps, bent contacts or unexpected label changes. Use an approved inspection procedure for optical end faces; do not remove caps merely to perform an uncontrolled visual check.

If connector inspection is part of the plan, use suitable inspection equipment and cleaning materials. Keep inspected, cleaned and unopened units identified separately.

Verify management identity and coding on a sample

Use approved test hosts or a controlled programming/inspection platform. Confirm that sampled units report the expected identifier, application, wavelength and supported diagnostics. Then test the intended host coding in the agreed device and software context.

Readable EEPROM data does not prove complete compatibility. The host must accept the module and operate the intended port mode. For mixed-vendor networks, sample each required coding profile rather than testing only one generic code.

Perform risk-based functional checks

The sample size and depth should reflect lot value, change risk, supplier history and deployment criticality. Possible checks include:

1. Host recognition and absence of unexpected warnings.
2. Correct speed, port mode and FEC state.
3. Link establishment with a known-good counterpart and path.
4. Digital optical monitoring values that are plausible for the test setup.
5. Traffic and error observation for a defined period.
6. Serial or lot traceability captured against results.

Do not claim that a brief link test proves lifetime reliability or compatibility with every platform. Record the exact test boundary.

Quarantine exceptions and close the record

Separate nonconforming or unverified units physically and in inventory. Do not mix a disputed lot with accepted stock. Record the defect, evidence, affected serials, supplier response, disposition and retest outcome.

Release accepted stock only after the inspection record is complete. Update spare pools so complementary BiDi pairs and fixed WDM channels remain identifiable.

The OEM versus compatible optics procurement guide explains the broader commercial and support trade-offs that should be decided before receiving.

Frequently asked questions

Must every transceiver be link-tested at receiving?

Not always. Choose a documented sampling or 100% test plan based on risk, supplier performance, lot size and criticality.

Does a correct label prove the internal coding?

No. Verify a risk-based sample using the agreed inspection method and intended host context.

Should protective caps be removed from every optic?

Avoid unnecessary exposure. Follow the approved inspection plan and handling guide; uncontrolled removal can introduce contamination.

What should happen to a mixed BiDi shipment?

Count and segregate the complementary sides, confirm labels and traceability, and quarantine any unmatched or ambiguous units.

Can good DOM readings replace a traffic test?

No. Diagnostics show module and optical indicators; they do not prove end-to-end error performance.

How long should receiving records be retained?

Follow the organization’s quality, warranty and asset-lifecycle policy. Keep enough traceability to connect deployed serials to orders, lots and test results.

Define acceptance before the shipment leaves the supplier

Share the exact applications, host models, software, coding profiles, wavelength pairs or channels, quantities and inspection requirements. Axonode can coordinate order-level traceability, coding and agreed validation checks with vetted OEM manufacturing and testing partners.

Contact Axonode about an optics BOM and receiving plan or review the optical transceiver portfolio