What is the difference between EPON and GEPON?

There is no difference. EPON stands for Ethernet Passive Optical Network. GEPON stands for Gigabit Ethernet Passive Optical Network. Both refer to the same IEEE 802.3ah standard providing 1.25Gbps speeds.

Can I use an EPON OLT SFP with a GPON ONU?

No. Although they use similar wavelengths, the communication protocols (IEEE 802.3ah for EPON vs. ITU-T G.984 for GPON) are completely different and incompatible.

What is the maximum split ratio for PX20+++ modules?

With a high optical budget of approximately 33dB, PX20+++ modules can typically support a split ratio of 1:64 over 20km, or even higher ratios over shorter distances depending on fiber loss.

EPON (GEPON) SFP Optical Transceivers

Deploy cost-effective and efficient Fiber-to-the-Home networks with our range of EPON (Ethernet Passive Optical Network) transceivers. Also known as GEPON, these modules utilize the IEEE 802.3ah standard to deliver symmetric bandwidth of 1.25 Gbps Downstream and 1.25 Gbps Upstream.

Because EPON carries Ethernet frames natively without the encapsulation overhead of GPON, it is a highly efficient solution for data-centric networks. Our inventory includes high-power OLT SFP modules for the headend and ONU SFP “Sticks” for subscriber termination.

Understanding PX20 Power Classes

EPON OLT modules are categorized by their optical power budget, which determines how far the signal can travel and how many times it can be split (Split Ratio). We offer the full range of PX20 classes to suit your specific network architecture:

Class	Tx Power	Link Budget	Typical Split Ratio
PX20+	+2.5 to +7 dBm	~28 dB	1:32
PX20++	+4.5 to +8 dBm	~30 dB	1:32 or 1:64
PX20+++	+7 to +10 dBm	~33 dB	1:64 (Extended Reach)

Product Types in This Category

1. EPON OLT SFP Modules

These transceivers are installed in the OLT (Optical Line Terminal) at the Central Office or street cabinet. They manage the traffic for multiple subscribers.

Key Specs:

• Wavelengths: 1490nm Tx / 1310nm Rx.

• Connector: SC/UPC (Standard for PON).

• Compatibility: Works with major EPON OLT brands (Huawei, ZTE, Fiberhome, VSOL, etc.).

2. EPON ONU SFP (Stick)

The EPON ONU SFP is a specialized module that contains the full chipset of an ONU (Optical Network Unit). It allows you to plug the module directly into a standard SFP port on a switch, router, or camera, effectively turning that device into an EPON client.

Key Specs:

• Wavelengths: 1310nm Tx / 1490nm Rx.

• MAC Address: Configurable for ISP authentication.

Why Choose EPON/GEPON?

Symmetry: Unlike GPON which is asymmetric (faster download than upload), EPON offers equal 1.25G speeds in both directions, which is beneficial for upload-heavy business applications.
Simplicity: EPON is based on native Ethernet standards, making it simpler to manage and integrate with existing Ethernet networks.
Cost-Efficiency: EPON hardware is generally more cost-effective for smaller to medium-scale deployments.