100G QSFP28 ZR4 80km BIDI

Q: How many types of 100G QSFP28 optical modules are there?

A: Currently, there are several types of 100G optical modules in the market, including 100G QSFP28 SR4, 100G QSFP28 PSM4, 100G QSFP28 CWDM4, 100G QSFP28 LR4, 100G QSFP28 ER4, and 100G QSFP28 ZR4. For detailed parameters, refer to the table below.

Q: What are the market trends for 10G QSFP28 optical modules?

A: The market trends are moving towards higher speeds (such as 200G/400G/800G), while also reducing costs, optimizing power consumption, improving energy efficiency, and enhancing compatibility and intelligent management capabilities.

Q: What does single-wavelength technology mean for 10G QSFP28 optical modules?

A: Single-wavelength technology refers to achieving 100Gbps transmission on a single optical wavelength, such as 100G QSFP28 DR/FR/LR/ER single-wavelength modules, reducing fiber requirements and simplifying network deployment.

Q: What is the digital diagnostics function of 100G QSFP28 optical modules?

A: The Digital Diagnostics Monitoring Interface (DDMI) allows real-time monitoring of the operational status of optical modules, including temperature, voltage, bias current, received optical power, and transmitted optical power, facilitating troubleshooting and maintenance.

Q: How do 100G QSFP28 optical modules adapt to switches from different brands?

A: Most QSFP28 optical modules adhere to Multi-Source Agreement (MSA) standards, ensuring interoperability between different brands. However, it’s advisable to check compatibility lists or consult suppliers before use.

Q: What is PAM4 technology in 100G QSFP28 optical modules?

A: PAM4 (Pulse Amplitude Modulation with 4 levels) is a modulation technique that allows each symbol to carry two bits of data, thereby doubling the transmission rate under the same bandwidth, such as achieving 25Gbps per channel.

Q: How do 100G QSFP28 optical modules achieve green energy efficiency in data centers?

A: By employing low-power designs, supporting sleep modes, efficient thermal management, and integrating with dynamic bandwidth adjustment technologies, unnecessary energy consumption is reduced, thereby contributing to energy savings and emission reduction in data centers.