Requirement Checklist
Use this page to close open cells on a 5g router with external antenna port before an alternative is accepted. LinkScope Sourcing 31 coordinates the questions. It does not approve the radio and it does not stock the chassis.
Frequency range written as band edges, for example a buyer may ask whether n78 around 3300-3800 MHz is supported. That range is a question, not a claim about a model on this site. Transmit power in dBm and receiver sensitivity come from the proposed datasheet. Antenna gain in dBi is a second document. VSWR, return loss, and insertion loss of a jumper are third documents. Do not merge them into one “RF quality” word.
Power over Ethernet class, or a DC barrel voltage, is a cost line. If the router also switches LAN ports, ask whether switching capacity and forwarding rate are published. If an SFP WAN is required, ask wavelength, optical budget, and whether the plant is single-mode or multimode. A 1 rack unit faceplate is a freight and airflow question, not a radio question.
Quantity, currency, per-unit or whole-order budget if you have one, Incoterm, destination, and lead-time basis. High-end, mid-range, budget-friendly, or undecided is a preference. It does not rank the factory. You can submit with the budget cell empty.
Exact manufacturer, model, and firmware branch. A compatible module may be offered against an OEM-coded module. Accept it only after host behavior, band list, and the test method are restated. A photo of four antenna holes is not a 4x4 MIMO proof if two holes are capped.
One argument for a wider channel, such as 100 MHz where the carrier and the module allow it, is higher theoretical throughput. The opposing argument is that a narrower 20 MHz or 40 MHz channel can be easier to match to a congested site and to a datasheet row the factory can actually cite. The checklist records which width the quote uses. It does not pick a winner. Throughput basis must say PHY, UDP, or TCP, and the direction.
An external port lets the buyer move the radiator to a window or a short mast, which matters when the rack is in a basement. The limit is connector polarity, jumper loss, and an ingress path at the chassis hole. A fixed internal antenna removes those variables and also removes the option to change gain. If the purchase reason is the port, an alternative without the port is a deviation, not a silent substitute.
Environment: the temperature the datasheet names, often a room figure such as 25 C or the full operating range. Method: conducted measurement into 50 ohm, or an over-the-air note that states antenna gain. Data: the dBm row and the throughput row for the exact model and firmware. Steps: match the label FCC ID to the public equipment authorization record, compare the connector drawing to the pigtail in the carton, then mark pass or deviation. Measurement accuracy and calibration traceability are requested when the factory cites a lab instrument. If those files are absent in the reply, the cell stays open rather than being treated as confirmed. Connector mating cycle is relevant only for plugs that will be cycled; ask for the drawing note if the antenna will be removed weekly.
Background: the original request was a named 5G desktop router with four SMA jacks. One factory offers a different chassis with two jacks populated and two capped, at a different lead time, destined for Arizona, quantity six. Process: the checklist forces the reply to restate MIMO as 2x2 rather than 4x4, to restate channel width, to price a 0.5 m jumper separately, and to attach the datasheet row for transmit power. Result: the buyer can see the port-count change before anyone calls the unit equivalent. The desk does not calculate a percentage difference between the two prices.
Related pages: inquiry configurations and the procurement brief.
The model datasheet or the connector drawing, not the antenna carton from a different vendor. If the drawing says 50 ohm and the antenna says 75 ohm, stop and mark a deviation. Impedance is a required cell.
Read the grant conditions for that FCC ID. An external antenna change can sit outside the original test. This page does not interpret a grant for you. It tells the factory to attach the file and the buyer to have it read before acceptance.
Treat it as context. Ask again for the exact model row: frequency range, MIMO, power method, and management. A brochure that omits connector polarity is not an answer.
Copy the open cells into the form. LinkScope Sourcing 31 will ask factories to answer them on one configuration. Missing cells should stay visible.
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