Connecting the fiber optic splitter to the splitter

To connect a fiber optic splitter to another splitter, use compatible fiber patch cables to link the output of the primary splitter to the input of the secondary splitter while monitoring signal loss.

Understanding Fiber Optic Splitters

A fiber optic splitter is a passive device that divides a single optical signal into multiple outputs without requiring power, making it ideal for FTTH and PON networks . Splitters can be FBT (Fused Biconical Taper) or PLC (Planar Lightwave Circuit) types, with FBT being cost-effective for low-ratio splits like 1x2 or 1x4 . Each splitter introduces some insertion loss, typically around 3.5 dB for a 1x2 splitter, which must be considered when cascading .

Steps to Connect Splitters

1. Prepare Equipment: Ensure you have compatible splitters, fiber patch cables (SC/APC, LC, or other connectors), and optionally a power meter to test signal strength .
2. Connect Primary Splitter: Attach the main fiber line from the ONT or central office to the input port of the primary splitter.
3. Link to Secondary Splitter: Use a fiber patch cable to connect one output of the primary splitter to the input of the secondary splitter. This creates a cascaded setup to expand the number of outputs .
4. Connect End Devices: Attach fiber cables from the secondary splitter outputs to the end devices, such as routers or ONTs.
5. Test Signal Strength: Use an optical power meter to measure the signal at each output. If the signal is weak, consider reducing the number of cascaded splitters or adding an optical amplifier near the primary splitter .

Best Practices

• Match Connector Types: Avoid mixing UPC and APC connectors to prevent signal loss .
• Monitor Split Ratios: Ensure the total split ratio does not exceed the network design limits, as excessive cascading can degrade performance .
• Plan Splitter Placement: Centralized splitting allows easier reconfiguration, while distributed splitting is fixed and often used in closures or pedestals .
• Consider Splitter Type: FBT splitters are suitable for small, low-ratio setups, while PLC splitters are better for high, uniform splits in dense networks . By following these steps and monitoring signal loss, you can effectively cascade fiber optic splitters to expand your network while maintaining optimal performance.