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Single-mode fiber optic transceiver with square port

Single-mode fiber optic transceiver with square port

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Single-mode fiber optic transceiver with square port - BENNIE OPTICAL [PDF]

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A single-mode SFP transceiver with a small square port is a hot-swappable optical module designed for long-distance, high-speed data transmission over single-mode fiber.

Overview

Single-mode SFP (Small Form-factor Pluggable) transceivers are compact optical modules that convert electrical signals into optical signals and vice versa, enabling network devices such as switches, routers, and servers to communicate over single-mode fiber (SMF) with minimal signal loss . The "small square port" typically refers to the LC (Lucent Connector) interface, which is standard for SFP modules and allows for duplex fiber connections in a compact form factor .

Key Specifications

  • Fiber Type: Single-mode fiber with a core size of approximately 9/125 µm .
  • Wavelengths: Commonly 1310 nm or 1550 nm for long-distance transmission .
  • Link Distance: Ranges from 10 km to over 80 km depending on the module type and optical power budget .
  • Data Rates: Standard SFP modules support 1 Gbps, while SFP+ and SFP28 can support 10 Gbps and 25 Gbps respectively .
  • Port Type: Small square LC duplex connector, which is compact and widely used in modern networking equipment .
  • Hot-Swappable: Can be inserted or removed without powering down the device, allowing flexible network upgrades .

Applications

Single-mode SFP transceivers are ideal for:

  • Campus and Metro Networks: Backbone connections between buildings or across cities .
  • Telecom and Data Centers: Long-distance uplinks and high-bandwidth links .
  • Industrial and Automation Systems: Reliable communication over distances up to 160 km with bidirectional SFPs .

Variants

  • Standard Single-Mode SFP: Supports distances up to 10–40 km depending on the model .
  • Extended Reach (EX/ZX) SFP: Supports distances up to 70 km or more, suitable for telecom applications .
  • Single Fiber Bidirectional SFP: Uses a single fiber for both transmit and receive, doubling bandwidth and supporting distances up to 160 km .

Advantages

  • Compact and modular design for flexible deployment.
  • Long-distance, low-attenuation transmission using laser light.
  • Compatibility with a wide range of networking devices.
  • Supports Digital Optical Monitoring (DOM) for real-time performance tracking . In summary, a single-mode SFP transceiver with a small square LC port is a versatile, high-performance solution for long-distance optical networking, offering hot-swappable convenience, reliable data transmission, and compatibility with modern network infrastructure .
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