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Arista QSFP-LR4 40Gb/s QSFP+ 10km 1310nm LC SMF Transceiver
- 40Gb/s Data Rate
- QSFP+ Form Factor
- Long Reach (LR4)
- 10km Transmission Distance
- 1310nm Wavelength
- Single-Mode Fiber (SMF)
- LC Duplex Connector
- Designed for Arista Networks
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Product Overview
The Arista QSFP-LR4 is a 40 Gigabit Ethernet QSFP+ transceiver designed for long-reach single-mode fiber optic links. It operates at 1310nm and uses LC connectors.
Technical Information
| Data Rate | 40 Gb/s |
| Form Factor | QSFP+ |
| Wavelength | 1310nm |
Additional Specifications
| Fiber Type | Single-Mode |
| Max Distance | 10km |
| Connector Type | LC Duplex |
Product Description
The Arista QSFP-LR4 is a high-performance transceiver module designed to support 40 Gigabit Ethernet (40GbE) connectivity over extended distances. It utilizes the QSFP+ (Quad Small Form-factor Pluggable Plus) form factor, which allows for higher port density and bandwidth compared to earlier SFP+ modules. The 'LR4' designation indicates its capability for Long Reach transmission, specifically up to 10 kilometers, over single-mode fiber optic cabling. This transceiver operates at a wavelength of 1310nm, a common choice for long-distance optical communication due to its favorable attenuation characteristics in single-mode fiber. The module employs a parallel optics architecture, typically multiplexing four independent 10Gb/s optical lanes onto a single fiber pair. The connection to the fiber optic network is made via standard LC duplex connectors, ensuring a secure and reliable physical interface. Engineered for Arista Networks' switching and routing platforms, the QSFP-LR4 is essential for building high-bandwidth backbone networks, data center interconnects, and campus networks. Its ability to transmit data over 10km enables robust connectivity between aggregation layers, core networks, or geographically dispersed data centers. The pluggable nature of the QSFP+ module simplifies network deployment, upgrades, and maintenance, offering flexibility and scalability.
