Where to connect the main cable of the optical splitter

The main fiber cable from the network source is plugged into the input port of the optical splitter, while the output ports connect to user devices or secondary splitters.

Input Port Connection

The input port of an optical splitter is where the main fiber line from the network source, such as an Optical Network Terminal (ONT) or central office, is connected. This port receives the incoming optical signal that will be divided among multiple outputs. In a typical FTTH (Fiber to the Home) setup, this input comes from the primary fiber backbone or a first-level optical crossover box.

Output Port Connections

The output ports of the splitter distribute the optical signal to multiple destinations. Each output port is connected via fiber patch cables to end devices, such as routers, TVs, or secondary splitters in a cascaded setup. For example, in a 1: 4 splitter, one input signal is divided into four outputs, each carrying a portion of the original signal.

The split ratio determines how much signal each output receives.

Primary and Secondary Splitters

In larger networks, a primary splitter receives the main fiber input and sends signals to secondary splitters, which then distribute the signal to individual users. The connection sequence is: Main fiber → primary splitter inputPrimary splitter output → secondary splitter input (if used)Secondary splitter outputs → end-user devicesInstallation ConsiderationsEnsure the correct type of fiber connector (e.g., UPC or APC) is used to avoid signal loss. Test signal strength with an optical power meter to verify proper distribution.

Avoid exceeding the recommended number of outputs to maintain signal quality. By following these guidelines, the optical splitter efficiently distributes the incoming fiber signal to multiple users while maintaining network performance.