40G QSFP+ LR4 10km

Q: What is the wavelength range for 40G QSFP+ optical modules?

A: The range spans from 850nm (multimode) to 1310nm (single-mode), catering to different types of optical modules such as SR, LR4, ER4, and others.

Q: How does the 40G QSFP+ optical module support hot-swapping?

A: Hot-swap support means the module can be installed or replaced without shutting down the system or disconnecting power, enhancing maintenance convenience and system availability.

Q: What are the digital diagnostic features of 40G QSFP+ optical modules?

A: The Digital Monitoring Interface (DMI) allows for real-time monitoring of parameters like optical power, temperature, voltage, received power, and bit error rate, facilitating troubleshooting.

Q: What is the power consumption of 40G QSFP+ optical modules?

A: Power consumption varies by module, generally ranging around 1-3W. Designs are optimized for power efficiency, meeting the energy requirements of data centers.

Q: What is the maximum transmission distance supported by 40G optical modules?

A: From the table above, it’s clear that among the various types of 40G optical modules, the 40G QSFP+ ER4 module supports the longest transmission distance, capable of reaching up to 40KM. Different transmission distance modules are suited for distinct application scenarios.

Q: In what kind of networks are 40G optical modules primarily used?

A: These three types of 40G optical modules serve different ranges due to their varying specifications.

The 40G QSFP+ SR4 module is commonly used in multimode applications for short-distance connections between data center equipment. It can connect two 40G network devices using MTP/MPO jumpers or link 40G devices with 10G devices via MTP/MPO to LC converters.

The 40G QSFP+ LR4 and 40G QSFP+ ER4 modules typically employ WDM technology for transmitting optical signals over long distances via single-mode fibers.

Q: Are 40G optical modules expensive?

A: Optical modules come in various types. Currently, there are two popular options in the market: original branded modules and compatible modules. Original modules command a higher price due to a lack of comprehensive understanding of the technology among buyers, limited judgment abilities, brand monopolies, and prestige effects, keeping their prices high. On the other hand, compatible modules offer significantly lower prices while ensuring compatibility with equipment. Walsun for instance, is a company that supplies various compatible modules. All products pass rigorous testing with original equipment and come with comprehensive after-sales service, making them highly favored by a broad customer base.