SFP (Small Form Factor Pluggable) is a compact, hot-swappable transceiver module that converts electrical signals into optical signals (and vice versa), enabling long-distance communication between devices. One of the main advantages of SFP modules is their hot-swappable nature, which allows them to be inserted or removed without powering down network devices.
A 1x9 optical module, also called a 9-pin module, has 9 pins. It's a solderable module that needs to be soldered onto a circuit board. Each pin has a different function, and there are three interface types: SC/FC/ST.
As enterprise digital transformation enters its more complex phase, campus networks are no longer merely about "connectivity," but rather the core engine of business innovation. Traditional Ethernet architectures are becoming bottlenecks, while all-optical network (F5G), with its disruptive architectural advantages, is becoming the inevitable choice for next-generation enterprise-level campus infrastructure.
Dual-fiber SFP optical modules are a common type of 1G SFP optical module. They employ a bidirectional transmission mechanism, with two independent channels or ports for data transmission and reception. One is the transmit port, and the other is the receive port. Both transmission and reception require a single optical fiber connection. Common wavelengths for 1G dual-fiber optical modules include 850nm, 1310nm, and 1550nm.
The biggest difference between 100Mbps, Gigabit, and 10GbE optical modules is their transmission rate. 100Mbps and Gigabit optical modules are packaged in SFP form factor, while 10GbE optical modules are packaged in SFP+ and XFP form factors. 100Mbps modules have a transmission speed of 155Mb/s; Gigabit modules have a transmission speed of 1.25Gb/s; and 10GbE optical modules have a transmission rate of 10Gbps.
