DESK SCOPE
LinkScope Sourcing 05
LinkScope Sourcing 05 coordinates factory questions for buyers who need a DWDM SFP+ 10G packet compared. The name is the sourcing service. It is not a transceiver brand, not a carrier, and not an authorized channel for any OEM.
The work is a short sequence: capture the specification, send that same text to more than one factory, and return the replies with deviations still visible. Selection stays with the buyer. A page on this site can explain how to read transmit power and receiver sensitivity. It cannot report a link that this desk has not measured.
Who writes which part of the packet
Buyer
Owns the host platform, the fiber records, the ITU channel plan, the quantity, the US destination, and the date the cages must be filled. Also owns the decision to accept a deviation. If the optical loss is unknown, the buyer says unknown rather than borrowing a number from a different span.
This desk
Checks whether wavelength, rate, reach class, connector, host, quantity, destination, and timing are present enough to send. Asks factories for datasheets tied to the model they name. Lines the commercial basis up: currency, per module or whole order, freight, and exclusions. Does not audit a plant and does not publish a client count, a founding year, or a throughput claim.
Factory
Names the manufacturer, model, wavelength, Tx and Rx levels, dispersion tolerance, temperature grade, DOM, EEPROM approach, lead time, and price. States what is excluded. A factory statement about compatibility or compliance applies only to the item that factory identifies. Another factory’s sentence does not cover it.
There is no customer quotation on this page because a named deployment would imply a result this desk has not documented. The useful record is the checklist, not a testimonial. When a buyer later shares a redacted purchase order, that document stays in the correspondence. It is not turned into a public case study without permission and without the exact module identified.
Commercial preference is optional. High-end, mid-range, budget, or undecided tells the desk which replies to request. It does not mean those factories were graded. A target budget needs a currency and a basis. The desk can forward the number. It cannot make a factory meet it.
A cross-check this desk can describe, and cannot run, uses figures you supply: channel width of 100 GHz (about 0.8 nm) or 50 GHz (about 0.4 nm); optical budget as transmit power minus receiver sensitivity; insertion loss near 0.35 dB for one mated LC pair; a return loss question of 45 dB on a jumper; a connector mating cycle count of 500 when that jumper is reused; ingress protection such as IP65 only for an outdoor cabinet; the host rack unit and its watt ceiling; and 1550.12 nm, about 193.4 THz. Measurement accuracy and calibration traceability stay on the supplier test sheet.
Identity questions buyers ask the desk
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Do you ship from your own line?
No. Factories ship their own offers if you accept them. The desk does not hold a warehouse of colored SFP+ modules and does not quote from inventory.
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Can you certify the EEPROM on our chassis?
No. The desk can ask a supplier whether they will code for the host and software release you name. OEM-coded bytes can track a vendor support policy and can narrow who will quote. A generic MSA identity can widen the factories and can still be rejected by the switch. The supplier’s written choice, and your own turn-up, are the evidence. A matching form factor is only the mechanical question.
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Why are there no years or headcount on this page?
Those figures would be unverified if added for tone. The service boundary is the part a buyer can check: the form fields, the comparison rows, and the refusal to treat a family brochure as a model datasheet.
Read the compact handoff when the packet must be short, or the longer note when the evidence list needs a table.
Start with the written packet
Use the form for the first message so wavelength and host stay attached. A later call can clarify a row. It should not replace the row. The desk reads briefs on US business days. That schedule is not a shipment promise.