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The Juniper QDD‑400G‑ZR is a high-performance coherent optical transceiver designed for long-reach 400 Gigabit Ethernet and related DWDM applications. Here's a detailed look at its functionality:
📶 Protocols & Data Rates
- Supports 400 GE or 4×100 GE host interfaces—selectable via client-side channelization.
- Line-side operates at 400G DP‑16QAM modulation using CFEC (Concatenated FEC), compliant with the OIF 400ZR standard.
🌐 Reach & Optical Characteristics
- Designed for unamplified transmission up to ~40 km, and with amplification (EDFA), up to 120 km over single-mode fiber ― typical reach lies in the 80–120 km range.
- Fully C-band tunable for DWDM systems, supporting 75 GHz or 100 GHz grid spacing and fine-tuning (0.1 GHz resolution).
🧩 Physical & Electrical Specifications
- Form factor: Hot‑pluggable QSFP‑DD (Type 2B) transceiver.
- Connector: Duplex LC for the line-side interface.
- Power: Single 3.3 V supply, typical consumption ~18 W (max ~19 W).
- Dimensions: ~18.35 mm × 93.26 mm × 8.5 mm.
⚙️ Advanced Features & Compliance
- Digital Optical Monitoring (DOM) via I²C for diagnostics.
- Supports hitless firmware upgrades and ingress-loss-of-signal management.Compliant with:
- OIF 400ZR v1.x,
- OIF CMIS 5.2,
- QSFP-DD MSA Rev 6.3,
- IEEE 802.3-2018.
✅ Use Cases
- Data Center Interconnect (DCI) over metro spans (80–120 km) 🌐
- DWDM point-to-point backbone links, with or without inline amplification
- Carrier and edge/core network transport requiring high-capacity, low-latency optical links
Summary
The Juniper QDD‑400G‑ZR is a compact, QSFP‑DD coherent transceiver enabling flexible deployment of high-speed 400 Gbps Ethernet over single-wavelength DWDM. With tunable C-band optics, CFEC, programmable channelization, and robust reach performance (up to ~120 km with amplification), it offers a turnkey solution for scalable and efficient data-center or metro backbone interconnect deployments.
** LOGIC NETWORKS BUYS AND SELL ALL NETWORK AND TELECOM EQUIPMENT**
