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الأسئلة الشائعة
•Will these transceivers work in our existing switches?
Yes, with correct compatibility coding. Optical modules follow standard MSA form factors, and suppliers program vendor-specific identification for the platform you name — state your switch make and model at order time. For mixed networks, modules can be supplied coded per batch for each platform.
•How are the modules tested before shipment?
Reputable suppliers test each module in live equipment, verifying link establishment, optical output power and receiver sensitivity, and can provide per-serial test records on request. For DWDM optics, wavelength accuracy is checked against the channel grid. Ask for the test protocol with your first order to confirm the practice.
•What is the typical warranty and failure handling for optics?
Warranties of two to three years are common in this segment. Failed modules are usually replaced rather than repaired: the supplier ships replacements after remote verification, often without waiting for the return given the low unit cost. Failure rates on tested modules are typically a fraction of a percent.
•Can we order small mixed batches across speeds and wavelengths?
Yes — mixed orders of different reaches, wavelengths and codings are normal, with many suppliers shipping from 1 to 10 units per position. Because everything travels by courier, an ISP can restock its optics inventory within a week, which is faster than many local distributor channels.
•Do you supply DDM/DOM diagnostics and are they readable in our NMS?
Most current modules implement digital diagnostics (DDM/DOM), exposing temperature, voltage and optical power readings through the standard interface, which any mainstream network management system reads. If your monitoring depends on diagnostics, state it explicitly — a small number of budget positions omit DDM to cut cost.