SFP WDM fiber transceiver pair Extralink 1.25G 1310/1550nm single‑mode 3km SC DOM

The Extralink SFP WDM fiber transceiver pair is a high-performance networking solution designed for reliable data transmission over single-mode fiber optic cables. This set includes two modules that operate at 1310 nm and 1550 nm wavelengths, enabling bidirectional communication over a single fiber strand. With a data transfer rate of 1.25 Gbps and a reach of up to 3 km, these transceivers are suitable for point-to-point network connections in various professional environments.

Advantages

These transceivers offer an economical and efficient way to expand network infrastructure while maintaining high signal integrity. The inclusion of Digital Optical Monitoring (DOM) allows for real-time tracking of critical parameters, ensuring proactive maintenance and network stability. The modules are fully compliant with SFP Multi-Source Agreement (MSA) and SFF-8472 standards, ensuring broad compatibility with a wide range of switches, routers, and other networking hardware. Furthermore, the integrated FP laser transmitter and PIN photodiode with a transimpedance preamplifier provide consistent performance, while the design meets Class I laser safety requirements.

Suitable for

• Upgrading existing fiber optic links
• Point-to-point connections between switches and routers
• Extending network reach up to 3 km
• Wavelength division multiplexing applications

This product is not suitable for multi-mode fiber optic cabling, as it is specifically engineered for single-mode fiber infrastructure. It may also not be appropriate for long-distance links exceeding 3 km, as signal degradation may occur beyond the specified range.

Key specifications

• Interface type: SFP
• Data transfer rate: 1.25 Gbps
• Wavelengths: 1310 nm and 1550 nm
• Fiber type: Single-mode
• Maximum distance: 3 km
• Connector type: SC
• Monitoring: DOM support

How to use

To install the transceivers, ensure that your networking device is powered off or supports hot-swapping if applicable. Insert the SFP module into the designated SFP port on your switch or router until it clicks into place. Connect the single-mode fiber optic cable with an SC connector to the transceiver. Once connected, power on the device and verify the link status through the network management interface. The DOM feature can be accessed via the device software to monitor optical power levels and temperature.

What to consider before purchase

• Verify that your networking equipment supports SFP modules
• Ensure the use of single-mode fiber optic cabling
• Confirm that the required transmission distance does not exceed 3 km
• Check compatibility with your existing SFP MSA-compliant hardware

Ensure that the fiber optic connectors are clean and free of dust before insertion to maintain optimal signal quality and prevent damage to the optical components.