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Generic Compatible GPON OLT Stick SFP 1490nm-TX/1310nm-RX 2.5G-TX/1.25G-RX Class C+ 20km Simplex SC/UPC SMF DDM/DOM Optical Transceiver Module

OT-2.5G-SFP-GOL

$179.00

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  • Asymmetric 2.5 Gbps Tx / 1.25 Gbps Rx
  • 1490nm DFB laser transmitter & 1310nm APD-TIA receiver
  • Hot-pluggable SFP package with SC/UPC connector
  • Supports up to 20 km transmission distance
  • Single 3.3 V power supply with <3 W low power consumption
  • SFP MSA, SFF-8472 Standard Compliant
  • Meets IEC-60825 Class I laser safety standard
  • Wide operating temperature range: -20 °C to 75 °C
  • RoHS-6 compliant and cost-effective GPON OLT solution

MSA Compatible 2.5G-TX/1.25G-RX GPON OLT Stick SFP Transceiver Module (Class C+, SMF, 1490nm-TX/1310nm-RX, 20km, SC/UPC, DDM/DOM)

This GPON OLT Stick SFP optical transceiver module is designed to ensure reliable access to fiber for Passive Optical Network (PON) systems. It operates at 1490 nm TX and 1310 nm for RX, it provides 2.5 Gbps downstream bandwidth and 1.25 Gbps upstream through single-mode fiber (SMF) with 20 km of distance. With DFB laser transmission, APD-TIA reception, and a simplex SC/UPC connector, compatible with Class C+ power levels (TX 3-7 dBm; RX sensitivity -32 dBm) to provide extended coverage. Built to the SFP MSA standard with DDM/DOM monitoring, it ensures seamless integration and real-time diagnostics.

The GPON OLT Stick SFP module has a significant advantage over standard GPON OLT SFP modules by integrating both the optical transceiver and the OLT’s key functions into a single compact device. Contrary to a traditional GPON OLT SFP that depends on a separate OLT chassis to process the data, this Stick SFP includes a built-in GPON PC+HY chip, onboard CPU, RAM along with flash storage. This means it is able to handle the management of bandwidth, protocol processing, and network control without the need for OLT hardware. it can be inserted into common SFP-compatible switches, routers, or network devices, dramatically simplifying deployment and reducing equipment costs for small to medium-scale networks.

The plug-and-play function eliminates the complexity of traditional OLT setups, allowing for faster deployment and easier maintenance. The integrated management system offers various settings and monitoring capabilities, as well as the high-speed performance and long-distance reach expected of GPON technology. By reducing the need for dedicated OLT equipment, the GPON OLT Stick SFP not only saves rack space but also lowers power consumption and maintenance requirements, making it an affordable, energy-efficient, and scalable solution for ISPs, businesses, and campus networks seeking a streamlined fiber access solution.

Specification

Form FactorSFPPort ConfigurationAsymmetrical
Tx Wavelengh1490nmRx Wavelengh1310nm
Tx Rate2.448GbpsRx Rate1.244Gbps
Tx Power3-7dBmRx Power-32dBm
Transmitte TypeDFB LDReceiver TypeAPD-TIA
ConnectorSC/UPCMax Transmission Distance20km
Supported Rate(SFP side)1/2.5/10GGPON MACSupport
Optical Power Input Overload-12dBmReceiver Reflectance-20dB
Transmitter Reflectance-10dBOptical Output Power after TX Disable-39dBm
Extinction Ratio<8.2dBPower Consumption<3W
ClassC+DDM/DOMSupport
Operating Temperature-20~75°C (-4~167°F)Operating Humidity5-85%
Storage Temperature-40~85°C (-40~185°F)Storage Humidity5-90%
Supply Voltage3.3VProtocolsSFP MSA, SFF-8472, IEC-60825, RoHS-6
Part NumberOT-2.5G-SFP-GOLVendor NameAsterfusion

Certifications

icon-FC
icon-CE
icon-RoHS

Connectivity solution

Operational Workflow

2.5GTx-1.25Rx-GPON-OLT-Stick-Module-Workflows

Dimensional Drawing

2.5GTx-1.25Rx-GPON-OLT-Stick-Module-Dimension-Figure

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Questions & Answers

What is a GPON OLT Stick SFP module?
A GPON OLT Stick SFP module is a compact, hot-swappable module that integrates both the optical transceiver and essential OLT functions—such as protocol processing and bandwidth management—into a single SFP form factor that plugs into standard SFP/SFP+ ports on switches or routers. No additional OLT equipment required.
How does it differ from a regular GPON OLT SFP?
Feature
GPON OLT SFP
GPON OLT Stick SFP
Requires standalone OLT
Yes
No
Contains OLT logic (MAC, CPU)
No
Yes
Deployment complexity
Higher; needs dedicated OLT system
Lower; plug-and-play into existing switch/router
What are the key components of a GPON network relevant to this module?

A GPON network is generally comprised of:

ODN (Optical Distribution Network): Passive fiber and splitters (e.g., 1:8, 1:16, 1:32, 1:64) that route signals without needing power. 
ONU/ONT: Customer-side devices converting optical to Ethernet; ONUs serve buildings, ONTs serve individual premises. 

How does data transmission work in GPON?

Downstream (OLT → ONU): Broadcast mode where the signal is distributed to all ONUs/ONTs. Each filters and processes only its own data—commonly using VLAN or GEM Port-IDs. Uses \~1490 nm wavelength.
Upstream (ONU → OLT): Uses Time Division Multiple Access (TDMA) where each ONU/ONT transmits in costumed time slots assigned by the OLT. Employs \~1310 nm wavelength.
Wavelength Division Multiplexing (WDM): Enables bidirectional communication over a single fiber by separating upstream and downstream wavelengths.

What transmission speeds does GPON support?

GPON: Offers up to \~2.5 Gbps downstream and \~1.25 Gbps upstream, shared across multiple ONUs.
Multi-user ratios typically range from 1:32 up to 1:128, depending on deployment.

What are the advantages of using GPON OLT Stick SFP modules?

Plug-and-play deployment with no need for dedicated OLT chassis.
Centralized management when used with SONiC-based switches and OpenWiFi controllers—ideal for campus or SMB networks.
Scalability: Supports up to 1:128 split ratios per SFP port.
Cost-efficiency: ~30% savings in deployment and operational costs compared to traditional Ethernet or standalone OLT installations.

What’s the typical reach of GPON?

A standard GPON system usually supports up to ~20 km reach.

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