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Optical Module-SFP-GE-Single Mode

Fiber optic splice closure knowledge brief Published 21 May 2024

Prepared for preliminary research by the RIVO OPTICAL knowledge desk. Confirm cable count, splice capacity, sealing class, tray layout, protection sleeves and installation requirements against current standards and product documentation.

The SFP-GE-Single Mode is a small form-factor pluggable Gigabit Ethernet optical module designed for single-mode fiber, supporting distances up to 10 km and often requiring paired modules for bidirectional operation.Overview

The SFP-GE-Single Mode module is a Gigabit Ethernet (1 Gbps) optical transceiver that connects network devices such as switches and routers over single-mode fiber (SMF). It is hot-swappable, allowing installation or replacement without powering down the device, and typically uses an LC connector for full-duplex communication .

Key Specifications
  • Fiber Type: Single-mode fiber (SMF)
  • Wavelength: Commonly 1310 nm for standard LX modules; bidirectional (BIDI) modules use paired wavelengths, e.g., 1310 nm transmit / 1490 nm receive
  • Transmission Distance: Up to 10 km for standard single-mode SFPs; some extended-range modules can reach 40–70 km depending on the model
  • Interface: LC duplex connector for standard modules; single-fiber BIDI modules use one fiber for both transmit and receive
  • Hot-Swappable: Yes, supports easy replacement without network downtime
  • Digital Optical Monitoring (DOM): Some modules support DOM to monitor real-time parameters such as optical output/input power, temperature, and voltage
Bidirectional (BIDI) Operation

Single-fiber BIDI SFP modules must be used in pairs, with one module transmitting at one wavelength and the other receiving at the complementary wavelength. For example, SFP-GE-LX-SM1310-BIDI must be paired with SFP-GE-LX-SM1490-BIDI to establish a full-duplex link over a single fiber strand .

Compatibility and Deployment
  • Compatible with a wide range of switches and routers that support SFP ports
  • Can interoperate with other 1G SFPs as long as they follow the 1000BASE-LX/LH or 1000BASE-BX10 standards
  • For multimode fiber connections, a different SFP type (e.g., 1000BASE-SX) is required, as single-mode SFPs are optimized for long-distance SMF links
  • When using legacy multimode fiber with LX modules, a mode-conditioning patch cable may be required to prevent signal distortion
Summary

The SFP-GE-Single Mode module is ideal for long-distance Gigabit Ethernet connections over single-mode fiber, offering flexibility, hot-swappable convenience, and optional monitoring features. For single-fiber BIDI modules, proper pairing is essential to ensure full-duplex communication. These modules are widely used in enterprise and carrier networks for reliable, high-speed optical connectivity .

Optical Module-SFP-GE-Single Mode - RIVO MULTITRADE OPTICAL SYSTEMS [PDF]

Optical Module-SFP-GE-Single Mode

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This reference is intended for preliminary fiber optic splice closure research. Compatibility, splice capacity, sealing class, tray layout, protection sleeves, installation methods, test limits and applicable standards must be verified for the specific project.

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