Professional SFP module pair for reliable optical data transmission
The Extralink SFP 1.25G 2-pack is an ideal choice for network systems where a stable, high-speed, singlemode optical connection is required for distances of up to 20 km. The 1.25 Gbps speed optical modules with LC/UPC connectors are excellently suited for switches, routers, media converters, or other network devices equipped with SFP sockets.
Main features and benefits
- 1.25 Gbps data transmission speed for gigabit networks
- 1310 nm singlemode optical transceiver with up to 20 km range
- LC/UPC connector for compact and stable connection
- DOM (Digital Optical Monitoring) function for detailed optical monitoring
- Wide compatibility with various SFP socket network devices
- Cost-effective 2-pack for building redundancy or paired connections
1.25 Gbps gigabit optical connection
The modules provide a data transmission speed of 1.25 Gbps, fully meeting the requirements of gigabit Ethernet networks. This optical solution is particularly useful in:
- Enterprise backbone networks,
- Connections between office buildings,
- Optical connections for camera systems,
- Internet service provider (ISP) applications.
The high-speed optical data transmission reduces latency, increases network reliability, and improves overall system performance.
Singlemode optical technology with 20 km range
The singlemode (SM) design operates at a wavelength of 1310 nm, specifically optimized for bridging longer distances. By using a quality singlemode optical cable, the module allows for connections of up to 20 km, making it ideal for:
- Optical links between sites,
- Urban optical networks (MAN),
- Building connections between data centers,
- Establishing optical backbone network segments.
LC/UPC connector – compact and widely used standard
The LC/UPC connector is the most commonly used standard in modern optical networks. Due to its small size:
- It offers a space-saving solution on patch panels and ODFs,
- Is easy to handle even in densely populated rack cabinets,
- Provides a reliable, stable optical connection.
The UPC (Ultra Physical Contact) polishing results in low reflection and good mating, contributing to low signal loss and better signal quality.
DOM – Digital optical monitoring
The built-in DOM function allows for real-time monitoring of optical parameters through the network device's interface. For example, it can check:
- Optical output power,
- Optical input power,
- Module temperature,
- Voltage and current values.
This detailed monitoring facilitates troubleshooting and preventive maintenance, reduces the risk of network outages, and helps in continuously monitoring the quality of optical links.
Wide compatibility and easy integration
The modules are made in standard SFP format, allowing them to be used with optical devices from various manufacturers. Typical compatible device types include:
- Gigabit switches and managed switches,
- Routers and optical routers,
- Media converters for copper-to-optical conversion,
- Optical multiplexers, CWDM and DWDM systems (with proper configuration).
The devices operate on a plug-and-play basis: simply insert them into the SFP socket, connect the LC singlemode optical cable, and optical data transmission can be established.
Application areas
- Enterprise networks – Establishing high-bandwidth connections between offices, sites, and server rooms.
- Service provider networks – Creating FTTx solutions, backbone network segments, and subscriber connections.
- Security technology – Optical connections for IP cameras, NVRs, and control centers over long distances.
- Data centers – Building reliable optical backbones between racks, servers, and switches.
- Educational and institutional networks – Connecting campus networks and remote buildings.
Advantages compared to other solutions
- Long distance: The 20 km range is much greater than that of copper-based Ethernet solutions.
- Interference protection: The optical fiber is not sensitive to electromagnetic interference, making it reliable even in industrial environments.
- Security: The optical signal is harder to tap, providing safer data transmission.
- Future-proof design: The optical infrastructure can later be upgraded to higher speeds by replacing appropriate modules.
Why is the 2-pack advantageous?
The package contains two optical SFP modules with identical parameters, which is practical for several reasons:
- A complete two-way optical link can be established immediately between two network devices,
- There is an option to keep a backup module for critical network points,
- It is a more economical solution than purchasing modules separately.
Product technical specifications
- Data transmission speed: 1.25 Gbps (Gigabit Ethernet)
- Optical type: singlemode (SM)
- Wavelength: 1310 nm
- Maximum transmission distance: 20 km (with quality SM optical cable)
- Connector type: LC/UPC
- Format: SFP optical module
- Function: DOM (Digital Optical Monitoring) support
- Compatibility: Network devices with SFP sockets
- Packaging: 2 modules / package
Ideal choice for reliable optical networks
This 1.25 Gbps speed, 1310 nm singlemode, LC/UPC connector SFP module pair is an ideal choice for users looking to establish a reliable, long-term stable optical data connection. Whether for enterprise backbone networks, inter-site connections, or service provider optical infrastructure, the modules reliably and cost-effectively meet growing data transmission needs.
