GPON ONU Stick SFP Module | Class B+ | 2.5G/1.25G | Terminal Transceiver

Overview

The GPON ONU Stick SFP Transceiver (Class B+) is an advanced optical terminal solution designed to eliminate the need for bulky, standalone ISP modems. By miniaturizing the entire Optical Network Unit (ONU) into a standard SFP form factor, this module allows enterprise and residential users to plug a fiber connection directly into their own routers, switches, or firewalls.

Fully compliant with ITU-T G.984.2 and G.988 standards, this “Stick” acts as a protocol translator. It receives the GPON signal from the ISP’s OLT (Optical Line Terminal) and converts it into a standard Gigabit Ethernet signal for your host device. It is an ideal solution for cleaning up network racks, reducing power points, and bypassing ISP-supplied hardware for greater control.

Key Features

• All-in-One Design: Integrates GPON MAC, BB Processor, and SerDes into an SFP module, effectively replacing an external ONU box.
• Asymmetric High Speed: Delivers 2.488 Gbps Downstream and 1.244 Gbps Upstream data rates.
• Class B+ Optics: Standard 20km reach with a robust optical power budget (1310nm Burst-Mode Tx / 1490nm Continuous-Mode Rx).
• Standard SFP Interface: Hot-pluggable design compatible with SFP cages in routers, switches, and media converters.
• Comprehensive Management: Supports OMCI (Open Management Control Interface) for remote provisioning by the ISP and local Web/Telnet access for user configuration.
• Dying Gasp Support: Automatically alerts the OLT of power failures, aiding in rapid network troubleshooting.

Applications

• ISP Bypass: Connect your personal high-performance router (e.g., MikroTik CCR, Ubiquiti UDM Pro) directly to the fiber wall jack.
• MDU/MTU Networking: Install in basement or floor switches to provide fiber uplink without requiring individual modems for every unit.
• Outdoor Wireless: Power outdoor Wi-Fi access points or LTE/5G small cells with fiber backhaul via their SFP ports.
• Industrial Automation: Provide secure, noise-immune fiber connectivity to industrial controllers and cameras.

Specifications

Cross-Platform Compatibility

The GPON ONU Stick is a dual-compatibility device, requiring support from both the host hardware and the ISP’s network equipment.

1. Host Device Compatibility

The module presents itself as a standard Ethernet interface (typically 1000BASE-X or 2500BASE-X) to the host. It is widely deployed with:

• MikroTik: RB3011, RB4011, RB5009, CCR Series (Requires SFP port speed set to 1G or 2.5G manually).
• Ubiquiti: EdgeRouter (X SFP, 4, 6, 12), UniFi Dream Machine Pro (UDM-Pro), USW Switches.
• Broadcom/Intel Based Cards: Standard NICs with SFP cages.
• Media Converters: TP-Link/D-Link SFP-to-RJ45 converters.

2. OLT (Line Side) Compatibility

The internal GPON stack is compatible with major OLT vendors via OMCI:

• Huawei: MA5600T, MA5800 Series.
• ZTE: C300, C320, C600.
• Nokia/Alcatel-Lucent: 7360 ISAM (Configuration may require specific software version matching).
• FiberHome: AN5516 Series.
• Calix/Adtran: Compatible with select firmware versions.

Configuration & Setup

Unlike a regular transceiver, this stick is an active network node. To establish a connection:

1. Access Management: Configure a static IP on your router’s SFP interface (e.g., 192.168.1.10) to access the Stick’s default IP (e.g., 192.168.1.1).
2. Clone Credentials: You must often copy the SN (Serial Number) and PLOAM Password (or LOID) from your ISP’s original modem into the Stick’s web interface.
3. VLAN Mapping: Ensure your router is configured to tag the WAN traffic with the correct VLAN ID provided by your ISP.

FAQ

1. Can I use this to replace my AT&T/Verizon/Bell modem?

Technically yes, but it requires extracting your authentication credentials (SN, certificates, or PLOAM password) from your existing gateway. This is an advanced procedure recommended for network engineers or enthusiasts.

2. What if my ISP uses SC/APC (Green) connectors?

This module uses an SC/UPC (Blue) connector. If your fiber drop is Green (SC/APC), you must use an SC/APC female to SC/UPC male patch cord. Plugging Green into Blue directly will damage the connector and cause high signal loss.

3. Will this work in a 10G SFP+ port?

Yes, most SFP+ ports are backward compatible. However, you often need to manually lock the port speed to 1Gbps or 2.5Gbps (if supported) because the module cannot auto-negotiate 10G speeds.

4. Why does the stick get hot?

The GPON Stick contains a full CPU and optical chipset in a tiny unventilated metal case. It is normal for it to run warm (up to 60-70°C). Ensure your host equipment has adequate airflow.