Introduction
Passive Optical Networks (PON) are the backbone of modern FTTH architecture.
One component makes PON deployment scalable and efficient: the fiber optic splitter. It allows a single input from the OLT to serve multiple endpoints without active electronics.
According to the Broadband Forum, PLC splitters are essential for achieving scalable and cost-effective GPON and XGS-PON deployment in access networks.
In this guide, you’ll learn how fiber splitters function in PON networks, the difference between PLC and FBT types, and how to choose the best model for your rollout in 2025.
What Are Fiber Optic Splitters in PON?
Fiber splitters are passive devices that divide one optical input signal into multiple outputs.
In PON:
– One fiber from the OLT enters the splitter
– The signal is divided evenly across 2–64 outputs
– Each output runs to an ONU or ONT at the subscriber end
No power needed, just precision waveguides or fused fiber structures.
PLC vs FBT Splitters: Which Is Right for PON?
📏 **PLC (Planar Lightwave Circuit)**
– Made with photolithography
– Uniform splitting ratio
– Supports high port counts (up to 1×64)
– Better for outdoor boxes and cabinets
🧪 **FBT (Fused Biconic Taper)**
– Fiber fusing method
– Cost-effective for 1×2, 1×4 setups
– Good for lab or compact indoor use
– Less stable at temperature extremes
📊 Summary:
– Use PLC for GPON/EPON field deployment
– FBT for test benches or low-ratio scenarios
Split Ratio Considerations in PON Planning
– 1×8: Best for short-loop or MDU setups
– 1×16: Common balance for access network and signal power
– 1×32 or 1×64: Wide-area FTTH rollout with ODN amplification planning
– Rule of thumb: Keep OLT optical budget in mind (typically 28–30 dB max for GPON)
– Over-splitting may lead to higher insertion loss and instability
Common Splitter Packaging for PON Projects
– ✅ **ABS Box**: Versatile, indoor/outdoor use, wall-mountable
– ✅ **Mini Module (Steel Tube)**: Insert into FAT or terminal box, great for tight spaces
– ✅ **LGX Cassette**: Slide-in for rack mount panel deployment
– ✅ **Tray-Embedded**: Direct integration in fiber trays inside closures
– ✅ **Rack Mount**: For large node centers, high-density 1U/2U installation
HOLIGHT’s Splitter Range and PON Success Stories
– Models: 1×2 to 1×64 (also 2xN versions), PLC/FBT available
– Ports: SC/APC, SC/UPC, LC/UPC, bare fiber, or pigtailed
– Packaging: ABS, Mini, LGX, Rackmount
– Standards: Fully compliant with ITU-T G.657A and G.652D systems
– Lead Time: 5–7 days, No MOQ, OEM logo support
🌍 **Case Study**: In a 2024 FTTH deployment in Peru, over 4,000 units of 1×8 and 1×16 PLC ABS box splitters were used across 7 cities.
Outcome:
– Stable ODN performance
– Smooth ONT installation
– Low insertion loss average: 13.2 dB for 1×16
– Installer feedback: Easy fiber management + flexible adapter fit
FAQ
Q: What’s the most common splitter type for FTTH?
A: PLC 1×8 and 1×16 in ABS box are most used in outdoor wall or pole cabinets.
Q: Can I use FBT splitters in a PON system?
A: Yes, but only for low port counts or test environments. PLC is more stable and reliable.
Q: Are HOLIGHT splitters tested before shipment?
A: Yes. Each unit undergoes IL/RL testing and comes with a report.
Q: Can I get splitters with custom labeling?
A: Yes. OEM support includes logo, port labels, and packaging.
Q: What connectors are available?
A: SC/APC is standard for PON, but we also offer LC/UPC, SC/UPC, or bare fiber.
Q: Are splitters waterproof?
A: Our ABS and LGX box types are IP65 rated when installed in sealed enclosures.
Q: What is your lead time?
A: Most models ship within 5–7 working days.
Keyword Summary
Primary Keyword: fiber splitter PON
Supporting Keywords: PLC splitter 1×8, 1×2, FTTH splitter, 1×16 optical splitter, GPON network, EPON passive splitter, LGX PLC splitter
