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Cisco

Cisco QSFP-100G-ER4L-S | 100G QSFP28 100GBASE-ER4-Lite, 1295–1310 nm CWDM4, 40 km SMF, duplex LC, std temp (0–70°C)

SKU:QSFP-100G-ER4L-S

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Description

Long-reach 100G QSFP28 ER4-Lite CWDM4 transceiver supporting up to 40 km over OS2 single-mode fiber via duplex LC. Ideal for metro, DCI edge, and extended campus links where 40 km reach and QSFP28 density are required.

Features

- Extended reach up to 40 km in compact QSFP28
- CWDM4 optics across the 1310 nm band
- High-density 100G for metro and campus backbones
- DOM/DDM for proactive performance monitoring
- Standards-based ER4-Lite interoperability
- Optimized for low total power at long reach

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: What is the maximum reach?
A: Up to 40 km over OS2 SMF, subject to link budget and FEC on the host.

Q: Which connectors and fiber do I need?
A: Use duplex LC connectors with OS2 single-mode fiber.

Q: Is FEC necessary?
A: Yes, RS FEC on the host is recommended/required to achieve full ER4-Lite distances.

Q: Does it support DOM?
A: Yes, digital optical monitoring is supported for real-time telemetry.

Q: Can it interoperate with other vendors’ ER4-Lite modules?
A: Yes, it follows the ER4-Lite/CWDM4 MSA for cross-vendor interoperability.

Technical Specifications

- Form factor: QSFP28
- Data rate: 100GbE
- Optical standard: 100GBASE-ER4-Lite (MSA, CWDM4)
- Wavelengths: ~1295, ~1300, ~1305, ~1310 nm (CWDM4)
- Connector: Duplex LC
- Fiber type: OS2 single-mode
- Reach: Up to 40 km over SMF (link budget and FEC dependent)
- FEC: Host RS FEC strongly recommended/required for full reach
- Digital diagnostics: DOM/DDM supported
- Operating temperature: 0 to 70°C (commercial)
- Compliance: QSFP28 MSA, 100G CWDM4/ER4-Lite MSA
- Applications: Metro/aggregation, campus backbone, DCI edge

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