Cisco

Cisco CPAK-100G-ER4F | 100G CPAK | 100GBASE-ER4 (FEC) | 1310 nm LAN-WDM | 40 km SMF | LC duplex

SKU:CPAK-100G-ER4F

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Description

High-reach 100G ER4 optical module in CPAK form factor for metro and long campus links up to 40 km over single-mode fiber. Uses 4x 25G LAN-WDM lanes around 1310 nm with duplex LC for easy integration into existing SMF plant. Requires host FEC for standards-compliant performance over 40 km.

Features

- 40 km 100G reach over standard OS2 single-mode fiber
- Duplex LC interface for simple cabling
- LAN-WDM optics in the 1310 nm window
- DOM/DDM for real-time optical monitoring
- Interoperable with IEEE 100GBASE-ER4 optics

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: Does this module require FEC?
A: Yes. 100GBASE-ER4 at 40 km requires host-based FEC to meet BER and standards compliance.

Q: Will it interoperate with QSFP28 100G ER4 optics on the far end?
A: Yes, as long as the remote optic is standards-compliant 100GBASE-ER4 over SMF with LC duplex.

Q: What fiber and connector are needed?
A: Use OS2 single-mode fiber terminated with LC duplex connectors.

Q: Is it hot-swappable?
A: Yes, the CPAK module is hot-swappable.

Technical Specifications

- Data rate: 100 Gigabit Ethernet
- Form factor: CPAK
- Optical standard: 100GBASE-ER4 (FEC required on host)
- Wavelengths: LAN-WDM around 1310 nm (approx. 1295.6/1300.1/1304.6/1309.1 nm)
- Reach: up to 40 km over G.652/OS2 SMF
- Connector: Duplex LC
- Fiber type: Single-mode (OS2)
- Digital diagnostics: DOM/DDM supported
- Hot-swappable: Yes
- Typical applications: Metro access, long campus runs, DCI over dark fiber

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