RDL TX-PCR1 Paging Controlled Relay

Optimize paging and local speaker control with the Radio Design Labs TX-PCR1 paging controlled relay. Designed for professional AV, security, and surveillance applications, the TX-PCR1 senses program-level audio from constant-voltage amplified sources and automatically switches speaker lines or mutes local amplifiers during area pages. The unit accepts 25/70/100 V inputs (25 V also supports 8 ohm, up to 75 W) via a transformer-isolated input and provides a DPDT high-power relay for dependable switching of speaker loads. Front-panel sensitivity adjustment with a visual signal LED and a release-delay trimmer (3–25 seconds) make setup fast and intuitive, while the open-collector SLAVE terminal lets you chain controls to additional RDL modules or equipment. For integrators working on monitoring, paging, or security audio systems, the TX-PCR1 reduces wiring complexity, prevents audio conflicts during paging, and provides consistent, repeatable control of speaker zones. Add the TX-PCR1 to your PA, retail, campus, or surveillance installation for reliable automatic muting and speaker switching—contact your supplier or order today.

• Automates speaker switching and local muting during pages to improve intelligibility and simplify live-voice paging
• Accepts amplified constant-voltage audio (25/70/100 V) with transformer-isolated input for safe integration into PA and security systems
• DPDT high-power relay plus open-collector SLAVE output lets you switch speaker lines or control additional modules and equipment
• Front-panel sensitivity and release-delay controls (adjustable trigger threshold and 3–25 s delay) with LEDs for fast commissioning
• Compact module design mounts easily in racks or enclosures for reliable operation in surveillance, monitoring, and AV installations