Extension cord Sonoff RL560 5m RJ9 4P4C — 5 m cable with RJ9 4P4C connector

Sonoff RL560 extension cord is a 5 m cable terminated with an RJ9 4P4C connector designed to extend wired connections for compatible devices. The cable provides additional reach to relocate or better position devices without altering existing wiring. It is suitable as a direct replacement for worn or damaged RJ9 4P4C leads and for temporary or permanent extension where a longer connection is required.

Advantages

The Sonoff RL560 5m extension cord offers a simple, reliable way to extend connections using a standard RJ9 4P4C plug. Its five-metre length increases installation flexibility and helps maintain tidy routing by avoiding improvised adapters. The cable is designed for straightforward plug-and-play use, requiring no configuration or power changes for compatible equipment.

Suitable for

• Extending handset or desk phone connections that use RJ9 4P4C connectors
• Lengthening signal leads for communication equipment with RJ9 4P4C ports
• Replacing damaged or short RJ9 4P4C cables in office or home setups

Key specifications

• Cable length: 5 metres
• Connector type: RJ9 (4P4C)
• Termination: pre-fitted RJ9 4P4C plug
• Intended use: wired extension for compatible devices

How to use

To use the Sonoff RL560 extension cord, insert the RJ9 4P4C connector into the compatible device port or handset jack until it clicks into place. Connect the other end to the corresponding port on the base unit, phone, or communication equipment. Verify the connection is secure and test the device functions to confirm signal continuity. For best results, route the cable to avoid sharp bends and keep it away from sources of strong electromagnetic interference.

Usage recommendations

If the original device cable is integral or has non-standard wiring, verify pinout compatibility before use. Avoid excessive tension on the cable and protect connectors from dust and moisture to maintain reliable connections.