High-Speed 40G QSFP+ LR4 3.3V optical Transceiver Module for Reliable Networking New

40Gb/s QSFP+ LR4 Optical Transceiver Module — 10KM Reach, Wide Temperature, DDM Support

1. 40G QSFP+ LR4 Product Overview

The 40G QSFP+ LR4 is a high-performance 40Gb/s QSFP+ LR4 optical transceiver module designed for long-distance data transmission up to 10 kilometers. It complies with IEEE 802.3ba 40GBASE-LR4 standards and is ideal for data centers, enterprise networks, and high-performance computing environments. This optical module supports four 10G lanes using CWDM technology and operates over a wide temperature range of 0°C to 70°C.

2. 40G QSFP+ LR4 Key Features

• Compliant with IEEE 802.3ba 40GBASE-LR4 and Infiniband SDR/DDR/QDR
• Uncooled CWDM transmitter with 4x10G channels
• Digital Diagnostic Monitoring (DDM) for real-time performance tracking
• Low power consumption: ≤ 3.5W
• Operating case temperature: 0°C to 70°C
• 10km reach with single-mode fiber

3. 40G QSFP+ LR4 Technology & Standards

This optical transceiver module uses CWDM (Coarse Wavelength Division Multiplexing) technology with four wavelengths centered at 1271nm, 1291nm, 1311nm, and 1331nm. It supports 40G Ethernet and Infiniband protocols, ensuring broad compatibility and reliable performance in high-speed networks.

4. 40G QSFP+ LR4 Working Principle

The module converts four electrical input channels into four CWDM optical signals, which are multiplexed into a single fiber for transmission. At the receiver end, the optical signal is demultiplexed back into four separate channels and converted to electrical outputs. This bidirectional process enables efficient 40G data transfer over single-mode fiber.

5. 40G QSFP+ LR4 Applications

• Data center interconnects and backbone networks
• High-speed servers and storage area networks (SAN)
• Ethernet switches and routers
• High-performance computing clusters
• Load balancers and network hubs

6. Specifications

7. Advantages

• Uncooled design reduces power and increases reliability
• Wide operating temperature range supports diverse environments
• Integrated DDM allows for proactive network management
• Low power consumption reduces operational costs
• Compatible with major OEM switches and routers

8. Service & Support

We offer Warranty terms confirmed in writing, delivery timing confirmed per project, and project support. Our team provides integration assistance and ensures compatibility with your existing network infrastructure. Bulk orders are welcome with competitive pricing.

9. Frequently Asked Questions

Q: What is the maximum distance supported by this optical transceiver module?
A: It supports up to 10km over single-mode fiber.

Q: Does it support Digital Diagnostic Monitoring?
A: Yes, it provides real-time monitoring of temperature, voltage, TX bias, TX power, and RX power.

Q: Is this module compatible with Cisco/Juniper/Arista switches?
A: Yes, it is designed to be compatible with major brands. Please confirm specific model compatibility before purchase.

10. Precautions

• Avoid bending the fiber beyond the minimum bend radius
• Ensure proper ESD protection during handling and installation
• Operate within specified temperature and humidity ranges
• Verify compatibility with host equipment before deployment

11. Company Introduction

China Cloud Electro Optics Technology Co., Ltd. has over a decade of experience in the networking hardware industry. With a qualified manufacturing and supply network and a strong technical team, we have built a solid reputation for providing high-quality optical transceiver modules and networking products at competitive prices. Our product portfolio includes condition confirmed in the quotation network switches, NICs, wireless access points, controllers, and cables. We maintain a vast sourcing capacity is confirmed per project, ensuring delivery timing confirmed per project and reliable supply for large-volume orders. Our professional sales and technical support teams are available 24/7 to assist customers worldwide.