RDL DS-TPSL1A Active Single-Pair Sender, Twisted Pair Format-A, Mini-Jack and Stereo RCA In

Deliver clear, low-noise audio to remote monitoring stations and security systems with the Radio Design Labs DS-TPSL1A Active Single-Pair Sender faceplate module. Designed for installers, this compact module accepts stereo line inputs via a mini-jack or two RCA phono jacks (summed to mono) and transmits the signal over a single Format-A twisted pair, cutting cabling complexity and costs. The DS-TPSL1A supports chaining with other Format-A senders and can be powered locally with 24 Vdc or remotely over the twisted pair, with a front-panel LED confirming module power. Built with a durable stainless-steel faceplate and a shallow 1.9" depth, it fits standard wall boxes or cabinets for tidy deployments. RDL’s Format-A technology delivers exceptional hum rejection, low noise and reliable performance—ideal for security, surveillance, paging and audio monitoring installations. Add the DS-TPSL1A to your next project for dependable remote audio distribution in commercial and institutional security systems.

• Simplifies remote audio wiring by sending stereo line-level audio over a single Format-A twisted pair, reducing cable runs and installation time
• Flexible power options (24 Vdc local or remote via twisted pair) for easy integration into security and surveillance systems
• Stereo mini-jack and dual RCA inputs summed to mono give installers quick, familiar connection options for consumer-level sources
• Robust stainless-steel faceplate and compact 4.1" x 1.6" x 1.9" footprint for neat wall-box or cabinet mounting in monitoring and access-control environments
• Low-noise, high-hum rejection performance ensures clear audio for monitoring, paging and recording applications