Lte-esfp optical module
LTE-eSFP optical modules are enhanced small form-factor pluggable transceivers designed for LTE and mobile fronthaul networks, supporting CPRI/OBSAI interfaces with flexible transmission rates and fiber types.
Overview
An eSFP (enhanced small form-factor pluggable) optical module is a compact transceiver that converts electrical signals to optical signals and vice versa, supporting monitoring of voltage, temperature, bias current, transmit optical power, and receive optical power . eSFP modules are widely used in enterprise networks, data centers, and mobile fronthaul networks for LTE, CPRI, and OBSAI applications .
Key Features
- Form Factor: eSFP, compatible with SFP slots but with enhanced monitoring capabilities .
- Transmission Rates: Supports multiple CPRI options, including Option 2 (1.2288 Gbps) up to Option 8 (10.138 Gbps), and OBSAI RP3 rates from 1.536 Gbps to 6.144 Gbps .
- Fiber Type: Available in single-mode (SM) and multi-mode (MM) configurations, with typical wavelengths of 850 nm, 1310 nm, or 1550 nm .
- Distance: Short-reach multimode modules (e.g., 850 nm) support up to 1 km, while single-mode modules can reach 15–80 km depending on the model .
- Interface: LC connectors are standard for eSFP modules, simplifying integration into existing fiber networks .
- Temperature Range: Standard modules operate from 0°C to 70°C, while industrial-grade modules can handle -45°C to 85°C for outdoor or harsh environments .
- Hot Swappable: eSFP modules can be replaced without powering down the network device .
Applications
- LTE Mobile Fronthaul: Connects Remote Radio Units (RRUs) to Baseband Units (BBUs) in 3G/4G networks, providing reliable low-latency links .
- Enterprise and Data Center Networks: Supports Gigabit Ethernet (GE) links for short-reach multimode fiber connections, enabling cost-efficient aggregation and campus backbone connectivity .
- Monitoring and Management: Enhanced monitoring allows network operators to track optical power, temperature, and voltage, improving reliability and maintenance efficiency .
Example Modules
- Huawei eSFP-GE-SX-MM850: 1 Gbps, 850 nm multimode, up to 0.5–1 km, LC interface .
- Huawei eSFP-FE-LX-SM1310: 100 Mbps, 1310 nm single-mode, up to 15 km, LC interface .
- LTE/CPRI SFP+ Transceivers: Support CPRI Option 8 (10.138 Gbps) for 4G fronthaul networks, with standard and industrial temperature options .
Summary
LTE-eSFP optical modules provide a flexible, compact, and monitored solution for connecting mobile fronthaul networks and enterprise fiber links. They support multiple transmission rates, fiber types, and environmental conditions, making them suitable for both indoor and outdoor deployments while ensuring reliable signal conversion and network monitoring.
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