The Teltonika PR4JR20K is a high-performance 1.25 Gb/s copper RJ45 SFP transceiver designed to convert an SFP slot into a standard RJ-45 port. This compact module supports Ethernet transmission speeds of up to 1.25 Gbps (1250 Mbit/s) over twisted-pair copper cabling distances up to 100 meters, making it ideal for extending network connectivity without the need for fiber optics.

Housed in a durable, fully metallic enclosure, the PR4JR20K provides robust protection against electromagnetic interference (EMI) and ensures reliable operation in demanding industrial environments. It consumes a typical power of just 2.0 W, allowing efficient integration into network devices with constrained power budgets.

Engineered for use with compatible Teltonika routers and switches, this transceiver supports wide operating temperatures from -40 °C to +70 °C and humidity ranges of 5% to 95% (non-condensing), enabling deployment in harsh or outdoor settings. The product is also RoHS and REACH compliant, ensuring environmentally responsible manufacturing standards.

Ideal for system integrators and network engineers, the PR4JR20K facilitates easy installation using the standard SFP form factor. It is an excellent solution for scenarios where fiber optic deployment is impractical, or existing copper infrastructure needs to be reused without sacrificing high-speed connectivity.

Key Benefits:

• Converts SFP ports to RJ45 copper interface
• Supports 1.25 Gb/s Ethernet data rates
• Extends Ethernet up to 100 m over copper
• Compact and industrial-grade metallic housing
• Low power consumption (2.0 W max)
• Wide environmental tolerance for rugged use
• Fully RoHS & REACH compliant