When a 100G link must stretch beyond 10 kilometers, the 100GBASE-ER4 QSFP28 takes over, pushing four LAN-WDM lanes up to 40 kilometers over single-mode fiber on engineered spans.
Links to roughly 30km typically operate without host FEC, while full 40km reaches use FEC on the host platform. DOM diagnostics report per-lane power, temperature and voltage for proactive maintenance.
100G QSFP28 ER4 Features
- Extended-reach 100G up to 40km
- Four LAN-WDM lanes in 1310nm window
- High-sensitivity APD receiver
- Duplex LC interface, QSFP28 form factor
- IEEE 802.3ba ER4 Lite compliant
- DOM per-channel monitoring
Typical Applications
- Metro data center interconnect
- City-scale 100G backbone links
- Carrier Ethernet transport
- ISP aggregation networks
Related 100G QSFP28 products:
- 100G QSFP28 Modules-Optical Transceivers
- 100G QSFP28 SR4
- 100G QSFP28 LR4
- 100G QSFP28 ZR4
- 100G QSFP28 CWDM4
Fiber Optic Kenya supplies 100G QSFP28 ER4 to ISPs, contractors and enterprises across Kenya and the wider East African region, with project support from our Nairobi team.