The Teltonika PR4DU22K is a high-performance 1.25 Gb/s SR SFP TX transceiver specifically designed for multi-mode fiber optic networks. Engineered to deliver reliable data transmission over distances up to 550 meters on 50/125 µm multi-mode fiber, this module supports a TX wavelength of 850 nm through a duplex LC connector. Housed in a fully metallic enclosure, it minimizes electromagnetic interference (EMI), ensuring enhanced signal integrity.

Key features include extremely low power consumption (less than 1 W), and it operates efficiently across a broad temperature range from -40 °C to +85 °C, making it suitable for a variety of demanding environments. The transceiver is compliant with RoHS and REACH standards, reflecting Teltonika Networks’ commitment to environmental safety and sustainability.

Ideal for integrating with compatible Teltonika networking devices such as RUTXR1 routers and SWM series switches, the PR4DU22K guarantees seamless connectivity and performance for your fiber optic infrastructure needs.

Highlights:

• Data rate: 1.25 Gb/s for high-speed transmission


• TX wavelength: 850 nm optimized for multi-mode fiber


• Connector type: Duplex LC


• Maximum reach: 550 meters over 50/125 µm multi-mode fiber


• Robust metallic enclosure minimizes EMI


• Wide operating temperature and humidity range


• Low power consumption under 1 watt


• RoHS & REACH compliant

For full datasheet and additional compatibility info, visit [Teltonika Networks Official Product Page](https://www.teltonika-networks.com/products/accessories/other-2/125-gbs-sr-sfp-tx-transceiver).