40G QSFP+ トランシーバー LQ-M8540-SR4I で産業用ネットワークを強力に稼働継続

You need reliable hardware in harsh environments. The 40G QSFP+ Transceiver LQ-M8540-SR4I gives you industrial-grade performance. This QSFP+ SR4 850nm module is designed for this need, offering high bandwidth, low power consumption, and industrial-grade reliability.

♦ 主なポイント

• The LQ-M8540-SR4I transceiver operates in extreme temperatures from -40°C to +85°C, ensuring reliable performance in harsh industrial environments.

• Digital diagnostics through the I²C interface allow リアルタイム監視 of temperature and signal quality, helping you prevent downtime.

• Investing in the LQ-M8540-SR4I can lead to significant cost savings due to its long lifespan, lower energy consumption, and reduced maintenance needs.

♦ Network Challenges in Industrial Environments

Deploying networks in industrial settings presents unique challenges. Equipment is often exposed to extreme temperatures, high humidity, dust, vibration, and 電磁妨害（EMI） from industrial lighting, welding operations, and other electronic devices. Fluctuating illumination can also affect optical transceiver performance, making robust design and deployment strategies essential.

Common Sources of Electromagnetic Interference

• Power lines and switching power supplies

• Electric motors and generators

• Fluorescent lighting and welding equipment

• Mobile phones and digital electronics

Key Industrial Network Challenges

Challenge Type	説明
Cybersecurity	Protection against attacks on critical infrastructure is essential.
Bandwidth & Latency	Real-time decision-making requires high bandwidth and low latency.
Network Reliability & Resilience	Harsh conditions and EMI can cause outages, affecting production efficiency.
Legacy System Integration	Combining legacy and modern systems requires careful planning.

Ensuring Reliability

は、極端な温度および過酷な環境下においてもパルス整合性を維持しなければならず、この分野においてLINK-PP製品は卓越した性能を発揮します。 are designed for high-speed, reliable data transmission under demanding conditions. Key features include:

• Mechanical robustness: Resists shock and vibration

• Conformal coating: Protects against dust, moisture, and fluctuating illumination

• Monitoring capabilities: Tracks optical output power, bit error rate, and receiver sensitivity

For applications such as industrial painting facilities, selecting transceivers that withstand moisture and illumination changes is critical. Proper deployment and monitoring help maintain network stability, extend equipment lifespan, and minimize downtime, even in the harshest environments.

♦ 40G QSFP+ Transceiver LQ-M8540-SR4I Features

データレート（LAN PHY）

この LQ-M8540-SR4I は、 40GbE optical module designed for short-reach multimode fiber applications. Operating at 850nm with advanced VCSEL laser technology, it delivers 40Gbps aggregate bandwidth を four full-duplex channels, each supporting data rates up to 11.2Gbps.

• 伝送距離： 最大 100m on OM3 MMF または 300m on OM4 MMF

• コネクタタイプ： MTP/MPO-12 interface for parallel optical transmission

• 電力効率： <1.5W typical power dissipation

• 内部チェックおよび通信処理を行います。 Real-time Digital Diagnostic Monitoring (DDM/DOM) via I²C

• 動作温度範囲： –40°C to +85°C (industrial grade)

For detailed specifications, refer to the official datasheet (PDF).

LINK-PP LPJE101NNL	値
高帯域幅短距離リンク	40Gbps
フォームファクター	QSFP+
波長	850nm
最大ケーブル距離	150m@OM4/100m@OM3
コネクタ	MTP/MPO-12 Male
メディア	フォーマット：SFP28（25Gネットワーク機器に互換）
送信器タイプ	VCSEL
受信器タイプ	PIN
— 例：	IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636
産業用温度範囲（Industrial Temperature Range）	−40°C ～ +85°C

アプリケーション

この LQ-M8540-SR4I 40G multimode fiber transceiver is widely deployed in:

• Data Center Networks: Server-to-switch and switch-to-switch interconnections

• 高性能コンピューティング（HPC）：: Low-latency InfiniBand QDR, DDR, and SDR links

• 電気通信: High-speed 40G transport connections

• Enterprise Infrastructure: Scalable LAN and campus backbone upgrades

♦ Real-World Benefits of LQ-M8540-SR4I

この LQ-M8540-SR4I 40G QSFP+ SR4 transceiver is engineered for high-speed, reliable optical connectivity across demanding industrial, data center, and telecom environments. Combining industrial-grade durability with compliance to global standards, it ensures consistent performance, energy efficiency, and seamless integration.

Reliable Uptime

Industrial networks require uninterrupted operation. The LQ-M8540-SR4I delivers stable data transmission even under extreme temperatures, dust, vibration, and electromagnetic interference. Its 産業用グレード設計 および digital diagnostics (DDM/DOM) enable real-time monitoring of temperature, signal quality, and power levels, allowing potential issues to be identified early and downtime to be minimized.

LINK-PPの光モジュールは、 Use digital diagnostics to track performance metrics and maintain consistent network operation.

高い（OEM プレミアム）

Investing in robust, high-quality hardware reduces the total cost of ownership. Key advantages include:

• Fewer replacements: Extended lifespan lowers hardware turnover

• Lower energy usage: Efficient power consumption (<1.5W) reduces operating costs

• Reduced downtime: Reliable operation minimizes production interruptions

• Quick installation: Hot-swappable design simplifies upgrades and maintenance

利点	How You Save Money
Fewer replacements	長寿命
Lower energy usage	Efficient power consumption
Less downtime	Fewer production interruptions
Quick installation	Reduced labor costs

Key Technical Benefits

• Optimized for 40G Ethernet (40GbE): 完全に準拠している規格： IEEE 802.3ba (40GBASE-SR4) for high-speed connectivity.

• Seamless Interoperability: Meets QSFP+ MSA および SFF-8436 specifications, ensuring compatibility with major switches and routers.

• Scalability & Efficiency: 設計に最適で、堅牢な電力供給とコンパクトな基板実装を実現します。 high-density data centers, cloud infrastructure, and telecom backbones, offering energy-efficient performance for large-scale deployments.

• Industrial-Grade Reliability: Wide operating temperature range and robust construction maintain stable performance in harsh industrial environments.

♦ よくあるご質問（FAQ）

1. What equipment can you use the LQ-M8540-SR4I with?

You can use it with major brands like Cisco, Juniper, Arista, and HPE.

It supports many switches and routers.

2. How do you monitor the transceiver’s performance?

You access real-time digital diagnostics through the I2C interface.

• Check temperature, optical power, and signal quality easily.

3. Can you install the LQ-M8540-SR4I in harsh environments?

Yes, you can.

機能	利点
Wide temp range	Reliable uptime
Rugged design	Withstands shock

また参照

• LINK-PP 400G QSFP-DD LR4 Transceiver: 10km Optical Range – High-speed long-reach optical modules for data center and telecom applications.

• Advantages of Using 100G SFP-DD LR Optical Transceivers – Explore the benefits of 100G LR optical modules, including efficiency and scalability.

• Troubleshooting Optical Transceivers with Digital Diagnostic Monitoring – Learn how to monitor and maintain transceiver performance in real time.

• Optical Transceivers Operating Temperature Range – Guide to selecting transceivers from industrial and harsh environments.

• What is Electromagnetic Interference (EMI)? – Understand EMI sources and their impact on optical networks.

• Overview of VCSEL Technology – Learn about VCSEL lasers and their advantages in multimode fiber transceivers.