① Introduction
In LTE and emerging 5G networks, optical connectivity forms the backbone of fronthaul and backhaul infrastructure. To meet rising data demands, operators rely on DWDM SFP+ transceivers that deliver high bandwidth, long-distance reach, and fiber efficiency.
This article explores how LINK-PP’s LS-DW4010-40I SFP+ DWDM Transceiver supports LTE systems through reliable, high-capacity optical links.
② Understanding LTE Fronthaul and Backhaul
In a typical LTE network architecture, baseband units (BBUs) and remote radio heads (RRHs) are connected via optical fibers. These connections—known as fronthaul links—carry critical CPRI or eCPRI data between centralized and remote units.
As operators centralize BBUs in C-RAN (Cloud Radio Access Network) deployments, fiber resources become limited and transmission distances increase—making DWDM (Dense Wavelength Division Multiplexing) an ideal technology for 10G SFP+ optical transceivers.
③ Why DWDM SFP+ Transceivers Matter in LTE Systems
Maximize Fiber Utilization
DWDM enables multiple 10G channels over a single fiber pair, saving infrastructure costs and boosting scalability.Long-Reach Transmission
The LS-DW4010-40I supports up to 40 km reach on SMF, ideal for distributed LTE fronthaul and backhaul links.Carrier-Grade Reliability
Built for –40 °C to +85 °C operation, this industrial SFP+ module ensures stable performance in outdoor cabinets or tower sites.CPRI/eCPRI Compatibility
The transceiver supports protocols used in mobile fronthaul transport, ensuring smooth integration with LTE and C-RAN equipment.DOM Monitoring
Digital Optical Monitoring (DOM) provides real-time diagnostics on transmit/receive power, temperature, and voltage—critical for carrier networks.
④ Product Spotlight: LINK-PP LS-DW4010-40I
Parameter | Specification |
|---|---|
Form Factor | SFP+ (Hot-Pluggable) |
Data Rate | 10 Gbps Max |
Wavelength | 1545.32 nm (C-Band, 100 GHz Spacing) |
Fiber Type | Single-Mode Fiber (SMF) |
Transmission Distance | Up to 40 km |
Connector Type | Duplex LC/UPC |
Temperature Range | –40 °C to +85 °C (Industrial Grade) |
Protocol Support | SFP+ MSA, CPRI/eCPRI |
DOM Support | Yes |
Compatibility | Switches, Routers, LTE BBUs/RRHs |
The LINK-PP LS-DW4010-40I combines high data throughput, DWDM channel density, and rugged industrial design, making it an excellent fit for telecom operators, OEM equipment vendors, and data transport integrators.
Upgrade your LTE fronthaul with LINK-PP’s LS-DW4010-40I.
Contact our optical experts to get the best DWDM transceiver solution for your network.
⑤ How DWDM SFP+ Modules Optimize LTE Deployment
In a C-RAN architecture, multiple RRHs connect to a central BBU pool. Using DWDM SFP+ modules like the LS-DW4010-40I on each link allows operators to multiplex numerous 10G optical channels over one fiber pair via a DWDM Mux/Demux device.
This reduces the need for new fiber deployment while maintaining low latency, high throughput, and network scalability.
Example Scenario:
Each RRH equipped with an LS-DW4010-40I transceiver connects back to a BBU pool 40 km away.
A 100 GHz DWDM Mux/Demux combines up to 80 wavelengths on a single fiber pair.
Operators monitor signal health via DOM for proactive maintenance and fault isolation.
⑥ Benefits for LTE and Beyond
Reduced OPEX and CAPEX through efficient fiber usage.
Scalable bandwidth for LTE-Advanced and 5G migration.
Reliable connectivity in harsh industrial environments.
Future-proof compatibility with eCPRI and Ethernet-based transport.
⑦ Conclusion
The LINK-PP LS-DW4010-40I SFP+ DWDM Transceiver is a robust solution for LTE fronthaul and backhaul applications requiring long-distance, high-capacity optical connectivity.
Its 10G performance, DWDM channel flexibility, and industrial reliability make it a cornerstone component in modern C-RAN and LTE transport networks.
