DWDM architecture diagram explanation
✅ DWDM Architecture Diagram – Explanation A DWDM system architecture typically consists of three logical layers : Client/Service Layer Optical Transport Layer Optical Line System (Fiber + Amplification + ROADM) 🧩 1) Client / Service Layer (Traffic Source) What it shows in the diagram: Routers Switches Storage systems Base stations Data center servers Function: These devices generate client signals such as: 100G / 400G Ethernet Fibre Channel OTN (OTU4, OTU2, etc.) ➡ These signals cannot travel directly on DWDM fiber and must be converted into optical wavelengths. 🔷 2) Transponder / Muxponder Layer (Electrical ↔ Optical) What it shows in the diagram: Transponders Muxponders Line cards in DWDM chassis 🔹 Transponder Converts a client signal (e.g., 100G Ethernet) into a DWDM wavelength (e.g., 1550.12 nm). Performs modulation (QPSK, 16QAM, etc.). 🔹 Muxponder Aggregates multiple lower-speed signals (e.g., 10×10G → 100G) into one DWDM wavelength. 👉 This is the bridge between ...