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PROJECT ROUTES

wholesale 100g optical transceiver

A wholesale 100g optical transceiver purchase changes with the route: a data-center leaf, a campus building riser, or a short metro handoff. LinkScope Sourcing 01 turns that route into lines a factory can price. The page does not design the network and it does not hold inventory for any of those routes.

  • Leaf and spine cages
  • Campus riser pairs
  • Metro handoff shelves
Data center aisle with fiber trunks and unlabeled 100G cages

Match the 100 Gbit/s name to the plant

Public Ethernet names are a translation aid. The supplier still has to tie a model number to the name. Use the multimode inquiry cards when the plant is OM3 or OM4, and the checklist when several open fields remain.

Parallel multimode, often NRZ

100GBASE-SR4 is commonly described as four 25 Gbit/s lanes at about 850 nm over MPO, with reach classes near 70 m on OM3 and 100 m on OM4. Those distances are published class limits, not a survey of your aisle. Ask whether the quoted part is that NRZ parallel design. A PAM4 single-lambda module will not land on the same MPO trunk.

Modal bandwidth and connector loss dominate. Count mated pairs. If each pair is budgeted at 0.35 dB and the route has four pairs, connector loss is 1.4 dB before fiber attenuation. Put that arithmetic in the brief so a factory cannot answer with a bare 100 m slogan.

Duplex single-mode, NRZ or PAM4

100GBASE-LR4 is commonly described as four wavelengths on duplex single-mode fiber, with a reach class near 10 km. A 100 Gbit/s single-lambda PAM4 part, often discussed as FR or LR, uses one wavelength window near 1310 nm and expects host FEC. The cage can look identical. The fiber, the wavelength plan, and the FEC assumption do not.

Worked check, labeled as arithmetic rather than a measured link: Tx minimum -2.0 dBm minus receiver sensitivity -8.6 dBm leaves 6.6 dB. Subtract 1.4 dB of connectors and 0.4 dB/km times the route length. At 6 km the fiber term is 2.4 dB, so the remaining window is 2.8 dB before any dispersion penalty. Ask the datasheet which temperature and which pattern produced the two optical numbers.

Tradeoffs the project has to pick

Single-mode versus multimode

Single-mode supports the longer campus and metro classes when the optics, the wavelength, and the dispersion limits are specified together. Multimode can fit a short data-center row when the trunk is already OM4 and the connector is the one the module expects. The cheaper-looking cage is the wrong purchase if the plant is the other fiber. Write the installed fiber designation before you ask for a wholesale lot.

OEM-coded versus compatible

An OEM-coded module may track a platform vendor support policy more closely. A compatible module may widen the set of factories if the exact host, the software release, and the EEPROM behavior are tested and written down. A shared product photo does not perform that test. Ask what the host does when the code is refused, and whether a recode is included in the quoted weeks.

New versus refurbished

A new module may carry a clearer warranty start and a cleaner cosmetic standard. A refurbished module may be the available path for an older host, but provenance, remaining support, and the license position have to be stated. Do not let a refurbished unit be described as new because the label was reprinted. Condition is a quotation field.

What to send for a route

Include the application, the host platform, the installed connector and fiber, the designed length, the quantity, the US destination, and the week the modules need to be on the dock. Add drawings of the polarity if the trunk is MPO. Site constraints such as an unconditioned room move the temperature grade from commercial 0 °C to 70 °C toward an industrial range. Power and airflow in the cage matter when a high-power PAM4 part is stacked beside other optics. Ask the supplier for power consumption in watts at the stated temperature, not a typical slogan.

Compliance paperwork stays on the named model. Laser class, any applicable FCC authorization, and any NRTL safety file are requested as documents. They are not assumed from the Ethernet name. Submit the route brief when those fields are either filled or marked unknown.

Ask factories for this route

The form carries the route, the 100 Gbit/s interface choice, the quantity, and the destination. Budget, if you add one, needs a currency and a per-module or whole-order basis. No market percentage is calculated on this page.

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Submitting lets the desk review the brief and contact factories. Read the Privacy Policy. Stock, price, compatibility, and compliance stay unconfirmed until a named supplier answers the exact module.