1.25G SFP 1550nm 160km

Q: What types of SFP optical modules are there?

A: SFP optical modules are small form-factor pluggable transceiver modules widely used in the telecommunications industry. There are numerous types of SFP modules, including BIDI-SFP, Ethernet SFP, CWDM SFP, DWDM SFP, and SFP+ optical modules. Additionally, compared to similar modules like XFP, X2, and XENPAK, SFP modules not only offer direct compatibility but also tend to be more cost-effective.

Q: Is a 1G SFP optical device compatible with a downgraded SFP+ port?

A: The compatibility of 1G SFP modules with 10G SFP+ ports largely depends on the specific switch model. Generally, SFP+ slots are compatible with SFP modules but operate at a slower speed of 1Gb/s. In some cases, an SFP+ port might limit the speed to 1Gb/s until the switch is restarted or a specific command is issued. It’s important to note that SFP+ ports typically do not support speeds below 1Gb/s, thus they cannot accommodate 100BASE SFP modules.

Before inserting an SFP transceiver into an SFP+ port of a 10-gigabit switch, ensure that the switch vendor or Walsun’s official front-end interface supports dual-rate functionality. This step is crucial to ensuring optimal network performance.

Q: How long is the warranty period for Walsun 1G SFP transceivers?

A: Our optical modules come with a 3-year warranty. This warranty covers defects that arise under normal usage conditions and does not extend to failures or malfunctions resulting from misuse, abuse, neglect, modifications, power issues, failure to follow product instructions, natural causes, or improper installation, operation, or repair by non-Walsun or unauthorized Walsun service providers.