Cisco QSFP-40G-LR4-RF Network Transceivers & SFP Modules
Cisco Parts Accessory Model Overview
Frequently Asked Questions
What is the maximum transmission distance for the Cisco QSFP-40G-LR4-RF transceiver?
The Cisco QSFP-40G-LR4-RF is designed for long-range single-mode fiber (SMF) applications with a maximum transmission distance of approximately 10 kilometers. This makes it ideal for campus and metropolitan area network deployments where extended reach over single-mode optical fiber is required. We offer this transceiver module as part of our comprehensive Cisco networking components catalog.
Is the Cisco QSFP-40G-LR4-RF hot-swappable?
Yes, the Cisco QSFP-40G-LR4-RF is a hot-swappable transceiver module, allowing you to install or replace it without powering down your network equipment. This feature minimizes downtime during maintenance and upgrades in production environments. Contact us today to verify compatibility with your specific Cisco network switches and routers.
What type of fiber and connector does the QSFP-40G-LR4-RF use?
The Cisco QSFP-40G-LR4-RF utilizes single-mode fiber (SMF) with LC duplex connectors for optical connectivity. The 1310 nm wavelength and single-mode design enable the extended 10-kilometer transmission distance over standard SMF cabling. Visit barcodesinc.com to verify compatibility with your existing fiber infrastructure.
What are the key differences between the QSFP-40G-LR4-RF and QSFP-100G-LR4-S-RF?
The primary difference is data rate capacity: the QSFP-40G-LR4-RF supports 40 Gigabit Ethernet, while the QSFP-100G-LR4-S-RF delivers 100 Gigabit Ethernet performance. Both are long-range single-mode fiber transceivers with similar 10-kilometer transmission distances, but the 100G module is designed for next-generation high-bandwidth network deployments. We offer both models to support your current and future network scaling needs.
Can the QSFP-40G-LR4-RF be used in multi-mode fiber networks?
No, the Cisco QSFP-40G-LR4-RF is specifically designed for single-mode fiber (SMF) applications and is not compatible with multi-mode fiber networks. Using this transceiver with multi-mode fiber would result in signal degradation and transmission errors. If you need multi-mode fiber solutions, we offer alternative Cisco QSFP modules optimized for MMF deployments—contact us today for recommendations.
What wavelength does the Cisco QSFP-40G-LR4-RF operate at?
The Cisco QSFP-40G-LR4-RF operates at a 1310 nanometer (nm) wavelength, which is the standard wavelength for long-range single-mode fiber transmission in telecom and data center applications. This wavelength provides optimal performance over extended distances while minimizing chromatic dispersion. Available from us, this transceiver integrates seamlessly with standard 1310 nm optical infrastructure.
