FTTR Low-Power Optical Module DML Selection Guide

For FTTR deployments, low-power DML optical modules such as GPON Class B+ SFPs are recommended to balance cost, power efficiency, and short-distance high-speed performance.

Key Considerations for FTT

R Optical Module Selection1.

Module Type and Power Efficiency In FTT

R scenarios, the distance between the master optical modem (mini-OLT) and slave modems is typically short, generally under 16 meters. This allows the use of low-power GPON Class B+ optical modules with DML technology, which support 2. 488 Gbps continuous transmission at 1490 nm and 1.

244 Gbps burst reception at 1310 nm. These modules are energy-efficient, reduce heat generation, and help lower operational costs in home deployments. 2.

Transmission Distance and Network Architecture FTT

R networks can adopt point-to-multipoint (P2MP) or point-to-point (P2P) topologies, with P2MP being more common. The short distances within a home environment mean that DML modules are sufficient for maintaining high signal integrity without requiring high-power lasers. For complex room layouts, single-stage or multi-stage optical splitting can be used to optimize coverage.

3.

Compatibility and Integration Low-power DM

L modules are typically available in SFP form factors, compatible with standard SC connectors and accessible via two-wire serial interfaces. They integrate well with 10G master optical modems and multiple slave modems, supporting Wi-Fi 6 and gigabit bandwidth throughout the home. This ensures seamless integration with existing fiber infrastructure.

4. Cost and Deployment Efficiency Using low-power DML modules reduces both energy consumption and cooling requirements, which is critical for cost-effective FTTR deployment. Modules with lower power consumption also simplify network management and improve long-term reliability.

5.

Practical Recommendations

Select GPO

N Class B+ SFP DML modules for short-range FTTR links. Ensure the module supports continuous 2. 488 Gbps downstream and 1.

244 Gbps upstream. Use single-mode fiber with SC connectors for easy installation. Plan optical splitting based on room layout to maintain signal quality.

Consider modules with low insertion loss and high signal integrity to support applications like 8K streaming, VR, and online gaming. By focusing on low-power DML modules, FTTR deployments can achieve high-speed, cost-effective, and energy-efficient home networks while supporting future-proof applications.