Network transceiver module Extralink EX.13599 SFP fiber optic 1250 Mbit/s 1510 nm stainless steel

The Extralink EX.13599 is a CWDM SFP fiber optic transceiver designed for single-mode links at 1.25 Gbps using a 1510 nm wavelength. Housed in a metal stainless-steel casing, this compact SFP module provides a hot-pluggable LC interface and supports optical connections up to 40 km (typical for CWDM single-mode links). It is intended for integration into network equipment with SFP slots to extend fiber connectivity without changing existing hardware.

Advantages

This Extralink SFP module offers a reliable single-mode fiber interface at 1.25 Gbps with a compact, metal housing for improved durability and heat dissipation. The CWDM 1510 nm wavelength allows use in wavelength-division multiplexed networks, and the LC connector provides a standard, widely supported fiber interface. The module’s form factor is compatible with common SFP ports and supports hot swapping to minimize network downtime.

Suitable for

• Single-mode fiber links requiring 1.25 Gbps data rate
• Longer-distance point-to-point connections (up to ~40 km, depending on link budget)
• CWDM deployments where 1510 nm channel is needed
• Network switches, routers and media converters with SFP ports

When it may not be suitable

This module is not suitable for multimode fiber networks or short-reach applications that use multimode optics. It may also be incompatible with devices that restrict SFP vendor or firmware—check device compatibility lists before purchase. For data rates higher than 1.25 Gbps or other wavelengths, choose a module matched to those requirements.

Key specifications

• Type: CWDM SFP fiber optic transceiver
• Data rate: 1.25 Gbps
• Wavelength: 1510 nm
• Fiber type: Single-mode
• Maximum reach: up to 40 km (typical, depends on link budget)
• Connector: LC
• Housing: Metal, stainless-steel colour
• Hot-pluggable: Yes
• Digital Optical Monitoring (DOM): Supported

How to use

Insert the SFP module into a compatible SFP slot on your switch, router or media converter until it clicks into place. Connect an LC single-mode patch cable to the module and the remote device. After installation, verify link status and, if available, monitor optical parameters via the device’s management interface using DOM. To remove, release the module’s latch and pull it straight out. Handle the optical ports and transceiver with care to avoid contamination—use dust caps when disconnected.

What to consider before purchase

• Confirm your network device supports 1.25 Gbps SFP modules and allows third-party transceivers
• Ensure single-mode fiber and LC connectors are used on your link
• Verify required link distance and optical budget to confirm 40 km reach is sufficient
• Check that 1510 nm CWDM wavelength fits into your existing wavelength plan

Recommendations

For reliable operation, install the Extralink SFP in a powered-off or maintenance window if your device requires it, keep connectors clean, and monitor DOM readings to ensure signal levels remain within acceptable ranges. Always match fiber type, connector and wavelength when mixing transceivers.