Hikvision (HK-SFP-1.25G-20-1550)

The Hikvision (HK-SFP-1.25G-20-1550) is a professional-grade Bi-Directional (BiDi) Single Fiber SFP Module designed for high-speed Gigabit Ethernet transmission over long distances. Unlike standard dual-fiber modules that require two strands for communication, this BiDi module uses Wavelength Division Multiplexing (WDM) technology to send and receive data over a single strand of fiber. Hikvision (HK-SFP-1.25G-20-1550) The “1550” in the model name indicates its primary transmission wavelength, making it the “sender” (or downstream) half of a matched pair.

To function correctly, this Hikvision (HK-SFP-1.25G-20-1550) must be paired with the HK-SFP-1.25G-20-1310 at the other end of the fiber link. Because they operate on a single fiber, one side must transmit at 1550 nm and receive at 1310 nm, while the other side does the exact opposite. This specific model is engineered for long-haul connectivity, supporting stable data transmission up to 20 kilometers, making it ideal for connecting remote security poles, separate building wings, or large-scale industrial perimeters.

The Hikvision (HK-SFP-1.25G-20-1550) module features a Single LC Connector and is built on the Small Form-factor Pluggable (SFP) standard, ensuring it is “hot-pluggable.” This Hikvision (HK-SFP-1.25G-20-1550) allows you to insert or remove the module from a network switch or NVR without powering down the equipment, ensuring zero network downtime during maintenance or upgrades. Its 1.25 Gbps data rate provides the necessary bandwidth for high-definition video streams from multiple 4K or AcuSense IP cameras without latency.

Physically, the Hikvision (HK-SFP-1.25G-20-1550) is housed in a rugged metal casing designed for industrial reliability. It operates on a 3.3V power supply and is built to withstand varied environments, with a standard operating temperature range of 0°C to 70°C. By utilizing single-fiber technology, this module not only saves on the cost of fiber optic cabling but also allows for higher port density in network switches, making it a cost-effective and efficient choice for modern security infrastructure.

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📌 KEY FEATURES 

• 1.25 Gbps Data Rate: Supports high-speed Gigabit Ethernet for fluid, high-definition video.

• Bi-Directional (BiDi) Technology: Transmits and receives over a single fiber strand.

• 1550nm Transmission Wavelength: Specifically designed to transmit at 1550 nm and receive at 1310 nm.

• 20 km Transmission Distance: Optimized for long-range, high-performance fiber links.

• Single LC Connector: Simplifies cabling and reduces infrastructure costs.

• Hot-Pluggable SFP: Allows for easy installation and replacement without system reboots.

• Single-Mode Fiber (SMF) Compatible: Designed for use with standard 9/125µm single-mode fiber.

• Industrial Build Quality: MSA compliant with a durable metal housing for 24/7 reliability.

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📌 BENEFITS 

The Hikvision (HK-SFP-1.25G-20-1550) provides a massive logistical advantage by halving the amount of fiber optic cabling required for a network link. This is particularly beneficial for existing installations where only a single fiber strand is available or where the cost of laying additional fiber is prohibitive. Its 20 km range provides the freedom to extend your security network far beyond the limits of copper or standard multi-mode fiber. By using WDM technology, you get a secure, interference-free connection that is essential for critical surveillance data.

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📌 APPLICATIONS 

• Long-Distance Perimeter Security: Connects cameras at distant fence lines back to a central NVR.

• Inter-Facility Networking: Links separate office buildings or warehouses via a single fiber strand.

• Smart City Surveillance: Provides the backbone for city-wide camera networks over long distances.

• Industrial Site Connectivity: Reliable data links in environments with high electromagnetic interference.

• Remote Gate Control: Manages access control and video at distant entry points.

• Backbone Uplinks: Connects primary network switches across large campus environments.

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📌 CONCLUSION 

The Hikvision (HK-SFP-1.25G-20-1550) SFP Module is a high-performance, single-fiber solution that defines efficiency in long-range networking. By utilizing sophisticated 1550/1310 nm WDM technology, it offers a secure and stable 1.25 Gbps link that is both cost-effective and easy to deploy. It is an essential component for any professional security installation that requires the high bandwidth of Gigabit Ethernet over distances that traditional cabling cannot reach. Remember, for a successful link, this “1550” sender must be used in conjunction with its “1310” counterpart.

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