Optex RC-20U Chime Box Receiver with Relay

Product Description

The OPTEX RC-20U is a chime box receiver with built-in relay, designed to work in conjunction with the RC10U wireless system. It receives wireless signals from a paired transmitter or sensor and triggers an audible chime output along with a relay contact closure, allowing integration with additional alert devices or access control components. This unit is suited for perimeter detection and entry notification applications and is typically installed by security technicians or low-voltage contractors. The relay output expands its functionality beyond a standalone chime, enabling connection to external equipment such as lights, sirens, or building automation inputs.

The RC-20U is intended for use in wireless receiver and repeater applications where a local audible alert combined with a dry contact relay output is required. It is commonly deployed at entry points, driveways, or monitored perimeter zones in both residential and light commercial installations. The receiver pairs with the RC10U transmitter, making it a direct companion component within the OPTEX RC-series wireless detection system. Installation is typically performed by licensed low-voltage or alarm system technicians.

Key Features

• Built-in relay output enables integration with external alert devices or access control systems
• Wireless receiver functionality eliminates the need for hardwired signal runs between sensor and chime
• Designed as a companion receiver for the OPTEX RC10U wireless transmitter
• Audible chime output provides local notification at the receiver location
• Sold as an individual unit for single-zone receiver installations

Compatibility

Designed for use with the OPTEX RC10U wireless transmitter as part of the RC-series wireless detection system.

Installation Notes

Installation should be performed by a qualified low-voltage or alarm system technician in accordance with applicable local codes. Power down all associated system components before making wiring connections to the relay output terminals. Verify wireless pairing between the RC-20U receiver and the RC10U transmitter before finalizing the installation. Consult the product manual for relay contact ratings before connecting external devices to the relay output.