1.25G BIDI SFP 1490Tx 1550Rx 120km

Q、What types of SFP optical modules are there?

A、SFP optical modules are compact, hot-pluggable transceiver devices widely used in the telecommunications industry. They come in a variety of types, including BIDI-SFP, Ethernet SFP, CWDM SFP, DWDM SFP, and SFP+ optical modules. Moreover, compared to similar modules like XFP, X2, and XENPAK, SFP modules not only offer direct compatibility but are also more cost-effective.

Q、What is the difference between SFP+ and SFP optical modules?

A、SFP and SFP+ optical modules share a similar physical size, but the primary distinction lies in their data transfer rates. SFP modules have a maximum transmission speed of 2.5Gb/s, whereas SFP+ modules can reach up to 10Gb/s. Due to these differences in speed, their applications and transmission distances vary.

Q、Can an SFP+ optical module be used in an SFP port?

A、Yes, it is possible. A 10G SFP+ optical module can operate in an SFP port, albeit at a reduced transmission rate of 1Gbps. Conversely, SFP modules cannot be utilized in SFP+ ports.

Q、What is the difference between the electrical interface module SFP-GE-T and optical interface modules?

A、Electrical interface module SFP-GE-T and optical interface modules differ in signal transmission methods and deployment scenarios:

• Signal Transmission Method: Electrical interface modules transmit data using electrical signals, while optical interface modules employ optical signals. Optical transmission offers higher bandwidth and speed, making it suitable for long-distance communications.
• Application Environment: Electrical interface modules are better suited for short-range transmissions and smaller network settings, such as offices or home networks. Optical interface modules, on the other hand, are designed for larger-scale networks found in data centers and corporate environments.