How to Effectively Deploy a GPON Network with FS PON Series
Mar 21, 20251 min read
The FS PON series offers an easy-to-deploy, end-to-end Gigabit Passive Optical Network (GPON) solution, providing Internet Service Providers (ISPs) and small-to-medium enterprises (SMEs) with a cost-effective fiber optic transmission system.
This article will explore the fundamentals of GPON networks and the core equipment of the FS PON series, as well as explain how to build a GPON network using the FS PON solution efficiently.
What is GPON and How Does it Work?
GPON, is a standard defined by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T). It adopts a point-to-multipoint architecture, delivering broadband access to end users via fiber optics. The term "Gigabit" in GPON refers to its maximum speed, typically offering 2.5Gbps downstream and 1.25Gbps upstream. "Passive" indicates that no powered devices are required along the transmission path of the optical signal.
A GPON network consists of three core components: the Optical Line Terminal (OLT), Optical Network Unit (ONU), and Optical Distribution Network (ODN). The ODN serves as the passive optical link between the OLT and ONU, composed of passive optical splitters, distribution boxes, splice closures, and fiber cables—all requiring no external power.
In GPON systems, a single PON port on the OLT connects to multiple ONUs via the ODN. The system uses wavelength-division multiplexing (WDM): downstream data (from the OLT to ONU) is broadcast at 1490nm, while upstream data (from ONU to OLT) operates at 1310nm with time division multiple access (TDMA), allowing ONUs to take turns sending data within designated time slots.
The passive splitter can theoretically support a 1:128 split ratio, contingent on the maximum allowable optical loss (28dB) and the receiver sensitivity of the ONU. In practice, providers often employ a tiered splitting strategy (e.g., 1:8 + 1:16) to efficiently serve 128 users. This cascading approach helps manage signal loss while maintaining reliable transmission speeds of 2.5Gbps downstream and 1.25Gbps upstream.
How FS PON Components Simplify GPON Network Deployment
Building a high-performance GPON network starts with reliable infrastructure. The FS PON series offers end-to-end GPON solutions designed to enhance network efficiency and simplify deployment. Its core components, including OLTs, ONUs, and PLC splitters, strictly comply with GPON standards, enabling ISPs and SMEs networks to accelerate service rollout, reduce operational costs, and achieve future-ready scalability.
Centralized Management with FS GPON OLTs
The OLT is the core control device in GPON networks, typically deployed in carrier equipment rooms or data centers. It centrally manages and routes all network traffic, ensuring efficient transmission of data, voice, and video signals.
FS 3610 Series GPON OLT features a compact 1U design with dual AC/DC power redundancy, making it adaptable to various network environments.
It offers a cost-effective solution for SMEs and campus networks:
High-Bandwidth Uplink, Flexible Networking: Equipped with 4x 1G COMBO SFP, 4x 1G SFP, and 4x 10G SFP+ uplink ports to meet diverse bandwidth requirements.
High-Density Access, Easy Scalability: Offers 8/16 PON port options, with each PON port supporting up to 128 terminals. A single 16-port OLT can connect up to 2,048 endpoints, making it ideal for campus-wide deployment.
Intelligent Management, Secure and Reliable: Supports OMCI, CLI, TELNET, WEB, SNMP, and SSH protocols to enhance management efficiency, while TR-069, ACL, RADIUS, TACACS+, and DHCP snooping to ensure robust network protection.
Dynamic Bandwidth Allocation, Optimized QoS: Features a built-in Dynamic Bandwidth Allocation (DBA) algorithm that prioritizes traffic for different applications, users, or data streams, reducing packet loss, latency, and jitter to ensure smooth operation of voice, video, and other latency-sensitive services.
Model | ||
Image |  |  |
Uplink Interface | 4x 1G RJ45/SFP Combo 4x 1G SFP 4x 10G SFP+ | 4x 1G RJ45/SFP Combo 4x 1G SFP 4x 10G SFP+ |
Downlink Interface | 8x GPON | 16x GPON |
Chip | Broadcom (BCM68621) | Broadcom (BCM68621) |
Power Slot | 2 | 2 |
Power Supply | 1x AC 100-240V (Customizable DC power supply, supports AC/DC hybrid use) | 1x AC 100-240V (Customizable DC power supply, supports AC/DC hybrid use) |
Power Consumption | Max. 56W | Max. 68W |
Fan Number | 3 | 3 |
Air-flow | Left-Right | Left-Right |
Flexible User-Side Connectivity via FS GPON ONUs
The ONU, located at the user's side, receives optical signals from the OLT, converts them into Ethernet, voice, or IPTV services for end users, and transmits upstream data back to the OLT. With multiple interfaces such as Ethernet ports, Wi-Fi, and VoIP, ONUs ensure seamless connectivity for homes, businesses, and campus networks.
FS GPON ONUs come in various forms and support diverse services, offering flexible solutions for data, video, voice, Wi-Fi, and Power over Ethernet (PoE) applications:
Various Form Factors: ONU Stick, Box-Type, Antenna-Type and desktop；
Comprehensive Service Support: WiFi 4/5/6, PoE/PoE+, VoIP, CATV；
Flexible Management: Supports WEB, SNMP, OMCI, TR-069；
Customizable Solutions: Pre-configured ONUs for seamless deployment
Model | Housing | PON Interface | Service | ||||
Ethernet | WiFi | CATV | POTS | ||||
 | ONU Stick | SC/APC | — | — | — | — | |
 | Antenna-Type | SC/APC | 4x GE | WiFi 4/5 | 2x POTS | 1x RF | |
 | Antenna-Type | SC/UPC | 1x GE 1x FE | WiFi 4 | — | — | |
 | Antenna-Type | SC/UPC | 4x GE | WiFi 4/5/6 | — | — | |
 | Box-Type | SC/UPC | 4x GE (PoE/PoE+) | — | — | — | |
 | desktop | SC/UPC | 1x GE | — | — | — | |
Effective Signal Distribution with FS PLC Splitters
PLC Splitters (Planar Lightwave Circuit Splitters) are essential passive components in GPON networks. Their core function is to split a single input optical signal into multiple output ports with precision, enabling uniform signal distribution and low-loss transmission.
FS offers six standardized housing solutions. Each type is designed to cater to specific usage requirements and environments, giving you a wide range of flexible options to choose from.
Bare fiber PLC Splitter: This type of splitter has the simplest structure, with exposed fibers and no connectors on either end, requiring fiber splicing. Its compact size effectively saves wiring space. Additionally, it can be installed in an ODN box, providing solid protection and management for FTTx network construction.
Blockless PLC Splitter: Also known as a mini-module PLC splitter, it offers stronger fiber protection compared to bare fiber splitters, and typically comes with connectors on both ends.
ABS PLC Splitter: This type has good impact and heat resistance, providing enhanced stability and reliability. Additionally, the lightweight ABS plastic box is convenient for cabinet installation and allows for flexible wiring.
LGX PLC Splitter: Featuring a plug-and-play modular design, these splitters can operate independently or integrate into a 1U LGX chassis for centralized management. A standardized 1U LGX chassis can house up to 3 LGX cassettes, allowing users to flexibly replace or add splitters based on application needs. Maintenance personnel can quickly replace faulty splitters without complex system disassembly or disrupting other equipment.
FHD PLC Splitter: Similar to the LGX, it uses FHD packaging and can be paired with the FS FHD series chassis. The 1U FHD chassis can hold up 4 FHD PLC Splitters, enabling high-density management.
1U Rack PLC Splitter: Specifically designed for rack installation, it can provide up to 64 ports on a 1U 19-inch rack, enhancing space utilization, and making it an ideal choice for high-density applications.
Product Type | ||||||
Image |  |  |  |  |  |  |
Connector Type (custom available) | No connector | SC/APC | SC/APC SC/UPC | SC/APC LC/APC | SC/APC LC/APC | SC/APC |
Fbier Grade | G.657A1 | G.657A1 | G.657A1 | / | / | / |
Fiber Mode | Singlemode | Singlemode | Singlemode | Singlemode | Singlemode | Singlemode |
Input/Output Fiber Diameter | 250μm | 900μm | 900μm/2mm | / | / | / |
Input/Output Fiber Length (custom available) | 1.5m | 1.5m | 1.5m | / | / | / |
Configuration Type (custom available) | Symmetrical：1×2/4/8/16/32; 2xN | Symmetrical：1×2/3/4/6/8/9/12/16/24; 2xN | Symmetrical：1×2/4/8/16/32; 2xN | Symmetrical：1×2/4/8/16/; 2xN | Symmetrical：1×2/4/8/16; 2xN | Symmetrical：1×16/32; 2xN |
/ | Asymmetrical: Customizable CH1 output power | / | / | / | ||
In addition, FS offers diverse custom options, such as housing, split ratio, and connector type, catering to the unique needs of GPON networks.
Build a Future-Ready GPON Network with FS Solutions
Deploying a high-performance GPON network requires the right combination of scalable, cost-effective, and easy-to-manage solutions. FS offers an end-to-end GPON solution, integrating powerful OLTs, diverse ONUs, and efficient PLC Splitters, ensuring seamless connectivity for enterprises, hotel, and campus networks.
With flexible deployment options, intelligent management tools, and future-ready architecture, FS GPON solutions empower businesses to maximize network efficiency while reducing operational costs.
- Categories:
- WDM, OTN, PON