10G EPON Optical Transceivers (OLT & ONU)
Welcome to our comprehensive selection of 10G EPON (Ethernet Passive Optical Network) transceivers. Designed for next-generation fiber access networks, these modules comply with the IEEE 802.3av standard, enabling service providers to deliver massive bandwidth upgrades over existing fiber infrastructure. Our catalog covers the full ecosystem required to deploy 10G services, including Headend (OLT) modules in both XFP and SFP+ form factors, as well as Customer Premises (ONU/ONT) modules.
Whether you are upgrading to fully Symmetric 10Gbps services for enterprise clients or deploying cost-effective Asymmetric (10G/1G) networks for residential broadband, we have the precise optical power class (PR30, PR40) and temperature rating (Commercial, Industrial) to meet your deployment needs.
Understanding the Range: OLT vs. ONU
Our 10G EPON category is divided into two primary device types:
- OLT Modules (Optical Line Terminal): These are installed in the central office equipment. We offer OLT transceivers in two form factors:
- SFP+ OLT: The modern standard for high-density 10G PON line cards.
- XFP OLT: Designed for legacy or chassis-based OLT systems that require superior thermal dissipation.
- ONU Modules (Optical Network Unit): These SFP+ modules plug into the customer’s equipment (modem or gateway). They are essential for terminating the fiber connection at the subscriber’s side.
Symmetric vs. Asymmetric 10G EPON
Selecting the right module depends on your bandwidth requirements. We stock both major standards defined by IEEE 802.3av:
| Type | Speeds (Down/Up) | Wavelengths | Best Use Case |
|---|---|---|---|
| Symmetric (PR30/PR40) | 10Gbps / 10Gbps | Tx 1577nm / Rx 1270nm | Enterprise leased lines, 5G mobile backhaul, and future-proof FTTH. |
| Asymmetric (PRX30) | 10Gbps / 1Gbps | Tx 1577nm / Rx 1310nm | Residential internet where download speed is the priority. |
Optical Power Classes: PR30 vs. PR40
The “Class” determines the optical power budget and how many users (split ratio) you can support per port:
- PR30 Class (Standard High Power): The industry standard for 10G EPON. Offers a ~29dB budget, supporting split ratios of 1:64 up to 20km. Available in both Symmetric and Asymmetric models.
- PR40 Class (Extended Power): High-performance modules with boosted transmit power and receiver sensitivity. Designed for difficult links with higher attenuation or increased split ratios (e.g., 1:128).
Industrial & Rugged Options
For deployments in outdoor cabinets, non-climate-controlled exchanges, or factory environments, we offer Industrial Temperature (-40°C to +85°C) versions of our Symmetric OLT and ONU transceivers. These rugged modules ensure network stability in extreme heat or freezing conditions.
Coexistence with 1G EPON
One of the key advantages of our 10G EPON modules is their ability to coexist with legacy 1G EPON (PX20+) networks. Because 10G EPON uses distinct wavelengths (Downstream 1577nm / Upstream 1270nm), it can run on the exact same fiber strand as 1G EPON (1490nm / 1310nm) using a WDM coexistence element. This allows you to upgrade specific high-value customers to 10G without disrupting existing 1G subscribers.
Frequently Asked Questions
1. Can I use an XFP OLT module in an SFP+ port?
No. XFP and SFP+ form factors are physically different. You must choose the module form factor that matches the slot on your specific OLT line card.
2. What is the difference between PR30 and PRX30?
PR30 indicates a Symmetric link (10G Transmit / 10G Receive). PRX30 indicates an Asymmetric link (10G Transmit / 1G Receive).
3. Can a Symmetric OLT support an Asymmetric ONU?
Generally, yes. Most 10G Symmetric OLTs allow for dual-rate upstream reception, meaning they can communicate with both Symmetric (10G upload) and Asymmetric (1G upload) ONUs on the same PON tree. However, you should always verify your OLT manufacturer’s specific compatibility list.
