Input range
Ask whether the inlet is 100-240 VAC at 50 Hz and 60 Hz, or a -48 VDC plant feed. Frequency range belongs on that input row. Switching capacity is a switch-fabric figure and is not this watt rating.
OUTPUT CONSOLE · NOT A STOCK LIST
switching power supply supplier: fix the output line before factories are ranked
LinkScope Sourcing 49 is an independent sourcing partner for buyers who need a switching power supply supplier answer tied to one module. Record DC volts, amperes, enclosure, quantity, and the US destination before any factory figure sits beside another. This desk does not run a rectifier plant and does not keep bricks in a cage.
- Volts. Write 12 V, 24 V, or a -48 V plant feed. A 12 V brick and a 24 V brick are different lines even when both say 10 A.
- Watts. 12 V at 10 A is 120 W. 24 V at 10 A is 240 W. Ask the supplier to show that product on the datasheet, not in a family banner.
- Box. Separate an enclosed brick, a 1U shelf, and an open-frame board. One rack unit is 44.45 mm. A 19-inch (482.6 mm) panel is not a DIN-rail box.
Three interfaces the opening reply has to name
A black brick in a brochure is not a specification. On 2026-10-27 this desk still treats every watt figure as a question until a model and a datasheet day, such as 2025-06-12, are written on the same row.
DC output
Name volts, amperes, and the power rating in watts. Power over Ethernet is a load on a switch port. It is not the DC output you are pricing. Impedance, if the radio vendor cares, is a separate question in milliohms.
Cooling and place
State fan or convection, airflow direction, and the installation environment. Ingress protection is blank until the exact model sheet states a code. Runtime stays blank unless a UPS shares the order.
Background: a shelter buyer had three replies for one 24 V 10 A enclosed brick. Process: the desk split input range, fan versus convection, and the 240 W nameplate onto separate rows and asked each factory for the datasheet day. Result: one reply was a 12 V 120 W unit, so it left the 24 V set. The example is a procurement situation, not a published customer result.
Product-family rows that must not share one price cell
Enclosed AC-DC brick
Typical questions are IEC inlet, output terminals, and a fan or a vent pattern. A 1U height of 44.45 mm matters only if the brick is actually rack-mounted. Many enclosed bricks are shelf or wall items.
Plant rectifier module
A -48 V shelf module is not a 12 V radio brick. Ask for shelf rack unit height, module current, and whether the controller is a separate line. Measurement accuracy of a panel meter needs the meter datasheet, not a photo of digits.
Open-frame board
An open-frame board needs the host chassis for safety spacing. Connector mating cycle, if quoted, must name the connector family. Do not copy a brick enclosure rating onto a bare board.
Fan cooling versus convection
Side A, fan: a fan can hold output at a higher ambient, often discussed around 50 °C, when the datasheet shows the curve. Noise, filter cleaning, and a failed fan are part of that choice. Side B, convection: a vented brick can suit a quiet cabinet when the load is derated at 40 °C. Neither side is chosen by this desk. The supplier must attach the curve to the named model.
What this desk will not decide
- It will not assign a safety mark, an FCC equipment authorization, or an NRTL file.
- It will not treat a family photo as proof that a second model has the same ripple.
- It will not publish a dollar figure or a delivered-cost gap. Freight, duties, and a cord stay outside the module cell until quoted.
Read the inquiry rows or the procurement brief, then use the requirement form. The India TEC infrastructure list, used only as question context under reference-tec-telecom-infrastructure, does not certify a US installation.
Delivery questions that change the module cell
- What has to be in the crate?
- Ask for the module, the mating connector kit, and any shelf rail as separate lines. A 2 m cord is not implied by a 120 W nameplate. Packing for a US destination should name the Incoterm the supplier used.
- What timing is being quoted?
- Ask for a ship date and a receiving window, written as a calendar day such as 2025-09-30, not a vague season. A sample of one unit and a lot of 40 units can have different timing. Write the quantity that the date belongs to.
- What does incoming inspection look at?
- Match the label to the datasheet revision, check volts and amperes at a stated load, and record ripple if the sheet states millivolts peak to peak. Calibration traceability applies only when a meter is in the acceptance plan. This desk does not perform that test.
Compare quotes only after the rows match
Put input, output, cooling, quantity, currency, and destination on one sheet. A per-module target and a whole-order target are different cells. High-end, mid-range, budget, or undecided is a buyer preference, not a factory grade.
- Reject a reply that changes 24 V into 12 V without a new line.
- Keep hold-up, in milliseconds at rated load, off the sheet unless the datasheet states it.
- Leave forwarding rate and optical budget off this power comparison. Those terms belong to other families.