DB-TPS3A

RDL DB-TPS3A – Active Three-Pair Audio Sender Format-A with XLR Mic and RCA Inputs

The RDL DB-TPS3A is an active audio sending module designed for professional AV installations, compatible with RDL’s Format-A twisted pair system. It features a balanced XLR microphone input with phantom power and two unbalanced RCA line-level inputs. The mic signal is routed to pair A, while the left and right RCA inputs are routed to pairs B and C respectively.

Studio-quality preamplifiers ensure optimal audio performance. A rear-panel gain switch allows installers to select normal or high mic gain, accommodating various microphone types and usage scenarios. Power can be supplied locally via a terminal block or remotely through the twisted pair cable. An auto-resetting fuse protects against overloads, and a front-panel LED indicates power status.

The DB-TPS3A uses all three Format-A pairs and cannot be connected with other sender modules. Its Decora®-style panel allows for wall box mounting, making it ideal for conference, education, and commercial AV environments.

Functionality

• Sends mic and line-level audio via twisted pair cable
• Balanced XLR mic input with phantom power
• Switchable mic gain (normal/high)
• Two unbalanced RCA inputs (-10 dBV)
• Channel assignment: MIC to pair A, L to pair B, R to pair C
• Local or remote power via twisted pair
• Signal and power pass-through via RJ45 jacks

Features

• Device type: active Format-A audio sender
• Audio inputs: 1 x XLR (balanced mic), 2 x RCA (unbalanced)
• Phantom power: 24 V DC (IEC)
• RCA input level: -10 dBV
• Mic gain switch: normal / high
• Power: 24 V DC (local or remote)
• Power indicator: LED
• Housing: Decora®-style panel (white, black, or stainless steel)
• Mounting: RDL WB-1U/WB-2U wall boxes or standard U.S. electrical boxes
• Uses all three Format-A pairs

The RDL DB-TPS3A is a versatile and reliable audio sender for AV professionals needing to transmit mic and line-level signals in Format-A twisted pair systems.