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Cisco

Cisco DP01QS28-E20 | 100G | QSFP28 | ZR DCO (coherent) | Tunable C‑band DWDM | 80 km | Duplex LC

SKU:DP01QS28-E20

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Description

QSFP28 100G coherent ZR DCO transceiver for metro/long-reach DWDM links. Tunable C‑band operation with duplex LC for simplified integration and high-density 100GbE over existing DWDM infrastructure.

Features

- Coherent 100G over DWDM for metro and regional spans
- Tunable C‑band operation simplifies sparing and planning
- QSFP28 footprint for high port density
- Duplex LC interface for straightforward cabling
- Integrated DCO for simplified host interoperability

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is the module wavelength tunable?
A: Yes. It supports tunable operation across the C‑band DWDM grid.

Q: Do I need a platform that supports coherent optics?
A: Yes. The host switch/router must explicitly support QSFP28 ZR DCO coherent transceivers.

Q: What fiber type is required?
A: Single‑mode fiber (OS2) with DWDM optics; link design may require amplification and dispersion management.

Q: Is this interchangeable with 100GBASE‑LR4?
A: No. LR4 is IM/DD; this module is coherent ZR and requires coherent-capable ports.

Technical Specifications

- Form factor: QSFP28
- Line rate: 100GbE
- Optical technology: Coherent ZR DCO (digital coherent optics)
- Base standard: 100G ZR (OIF/ITU‑T)
- Wavelength: Tunable C‑band DWDM (ITU‑T grid)
- Connector: Duplex LC (SMF/OS2)
- Optical reach: Up to 80 km (link design dependent)
- Host electrical interface: CAUI‑4 (4×25G)
- FEC: Coherent FEC supported
- Monitoring: Digital diagnostics (DOM/DMON)
- Operating temperature: Commercial

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