Understanding the 100G QSFP28 ZR4 Optical Module

What is a QSFP28 ZR4 Module?

The QSFP28 ZR4 is a high-speed optical transceiver that supports 100Gbps transmission (4 × 25Gbps). It operates on a 1310nm wavelength and can reach distances of up to 80 kilometers over single-mode fiber (SMF). Equipped with an LC connector and DOM (Digital Optical Monitoring) functionality, this module is designed for reliability in demanding network environments.

Key Features and Specifications

• Data Rate: 100Gbps

• Wavelength: 1310nm

• Connector Type: LC duplex

• Transmission Distance: Up to 80km on SMF

• Digital Optical Monitoring (DOM): Real-time monitoring of module performance

• Temperature Range: 0°C to 70°C

These characteristics make the 100G QSFP28 ZR4 module suitable for long-haul, high-capacity networking applications.

Why DOM Monitoring Matters

DOM provides real-time information on critical parameters such as optical transmit power, receive power, temperature, and voltage. This helps network administrators quickly detect anomalies, optimize system performance, and prevent downtime.

Application Scenarios

1. Data Center Interconnects: Supports long-distance connections between geographically distributed facilities.

2. Telecom and ISP Backbone: Perfect for city-wide or regional high-bandwidth networks.

3. Enterprise Networking: Large organizations and government networks requiring secure, high-speed connections across campuses.

Deployment Considerations

• Ensure your switches and routers support QSFP28 ZR4 modules.

• Verify compatibility with LC connectors and single-mode fiber infrastructure.

• Use DOM data proactively for maintenance and troubleshooting.