Passive Single-Pair Twisted-Pair Sender, 3.5mm Mini‑Jack Input – RDL D-TPS7A

RDL D-TPS7A — Passive Single-Pair Twisted-Pair Sender with 3.5mm Mini-Jack Input

The RDL D-TPS7A is a passive single-pair audio sender designed to carry a line-level source over one twisted pair using the RDL Format-A wiring convention. A 3.5mm mini-jack input accepts portable players, preamps, or other line-level sources for straightforward connection. Because the unit is passive, it requires no external power, simplifying installations and minimizing maintenance points. The D-TPS7A lets technicians extend audio over structured twisted-pair cabling to a compatible receiver, providing a low-complexity solution for distributed audio runs. Its minimal footprint and simple wiring reduce installation time and help integrate audio distribution into retrofit and OEM projects. Use the D-TPS7A where a powered transmitter is unnecessary and balanced conversion or amplification is handled at the receive end.

Key Features:

• Passive design — no external power required
• Single twisted-pair audio transmission
• Compatible with RDL Format-A twisted-pair wiring
• 3.5mm (mini-jack) line-level input for easy source connection

Specifications:

• Manufacturer: RDL
• MPN: D-TPS7A
• UPC:

Applications / Usage Context: Field installers and low-voltage technicians can use this sender to extend line-level audio over existing twisted-pair wiring to compatible receivers. OEM customers can integrate the D-TPS7A where passive, space-efficient audio transmission is required. MRO operations will find it useful for quick replacement or expansion of audio distribution without adding powered electronics.

Tri-Tek Electronics is an authorized distributor of this product with full manufacturer warranty support and nationwide availability.