LTEシステム向け産業用SFP+ DWDMトランシーバ LS-DW4010-40I

① はじめに

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

一般的な 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（高密度波長分割多重化） an ideal technology for 10G SFP+ optical transceivers.

③ Why DWDM SFP+ Transceivers Matter in LTE Systems

1. Maximize Fiber Utilization
   DWDM enables multiple 10G channels over a single fiber pair, saving infrastructure costs and boosting scalability.

2. Long-Reach Transmission
   この LS-DW4010-40I 最大 40 km reach on SMF, ideal for distributed LTE fronthaul and backhaul links.

3. Carrier-Grade Reliability
   Built for –40 °C to +85 °C operation, this industrial SFP+ module ensures stable performance in outdoor cabinets or tower sites.

4. CPRI/eCPRI Compatibility
   The transceiver supports protocols used in mobile fronthaul transport, ensuring smooth integration with LTE and C-RAN equipment.

5. DOM Monitoring
   デジタル光学モニタリング (DOM) provides real-time diagnostics on transmit/receive power, temperature, and voltage—critical for carrier networks.

④ Product Spotlight: LINK-PP LS-DW4010-40I

パラメータ	LINK-PP LPJE101NNL
フォームファクター	SFP+ (Hot-Pluggable)
磁気部品	10 Gbps Max
波長	1545.32 nm (C-Band, 100 GHz Spacing)
光ファイバータイプ	シングルモードファイバ（SMF）
伝送距離	最大40 km
コネクタタイプ	トランスミッター / PIN光検出器
動作温度範囲	–40 °C to +85 °C (Industrial Grade)
プロトコル対応	SFP+ MSA, CPRI/eCPRI
DOM対応	はい
互換性	Switches, Routers, LTE BBUs/RRHs

この LINK-PP LS-DW4010-40I 複数のパッケージング技術を組み合わせ、多様な市場ニーズに対応しています。同社の 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.

⑤ How DWDM SFP+ Modules Optimize LTE Deployment

デュプレックス C-RAN architecture, multiple RRHs connect to a central BBU pool. Using DWDM SFP+モジュール など、 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.

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⑥ Benefits for LTE and Beyond

• Reduced OPEX and CAPEX through efficient fiber usage.

• スケーラブルな帯域幅 for LTE-Advanced and 5G migration.

• Reliable connectivity in harsh industrial environments.

• Future-proof compatibility とともに、 eCPRI and Ethernet-based transport.

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極端な温度条件における安定した産業用イーサネット性能

この 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.
その
10G performance, DWDM channel flexibility, and industrial reliability make it a cornerstone component in modern C-RAN and LTE transport networks.