Radio Design Labs DS-TPS3A
Active 3-Pair Sender


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Radio Design Labs' DS-TPS3A module is a three-pair audio sending module that is compatible with RDL Format-A twisted pair products.  This module is designed to be mounted in wall boxes, cabinets or other enclosures that allow users to connect audio sources.  It can mount into RDL's WB-1U and WB-2U wall boxes, or in standard U.S. electrical boxes.  The DS-TPS3A is constructed of stainless steel to coordinate with RDL Decora©-style stainless steel remote controls in commercial/industrial installations.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

The DS-TPS3A module features an XLR microphone input and two RCA phono jack inputs, one for the left channel source and one for the right channel source.  The unbalanced inputs are designed to receive standard -10 dBV consumer level signals.  The microphone input provides 24 Vdc IEC phantom voltage and accepts both dynamic and condenser microphone signals.  The input signals are amplified using studio-quality preamplifiers optimized for normal operating levels.  A rear-panel GAIN switch is provided to set the amplification of the microphone preamplifier.  This switch is normally set by the installer for NORM (normal) gain.  If consistently low mic levels are expected, this switch may be set to the HIGH gain position.  The pre-amplified microphone source is routed to pair A.  The buffered left and right line-level inputs are routed to output cable pairs B and C.

This module drives all three FORMAT-A cable pairs, so it is not equipped to receive inputs from other sender modules.  The DS-TPS3A may not be connected together with any other sending module.

The DS-TPS3A may be powered directly from a 24 Vdc power supply using the rear panel detachable terminal block.  Local power connected to the module is also fed to all connected remote modules.  The DS-TPS3A may be remotely powered through the twisted pair cable from any other module, signal distributor or RDL power inserter connected to the same twisted pair cable.  Module power is indicated by a front panel LED.

RDL FORMAT-A features superior audio performance that rivals or exceeds shielded wiring.  Design simplicity, ease of installation, unsurpassed flexibility, automatic fused power, exceptional hum rejection, low noise, and low distortion provide designers and installers the optimum choice in economical twisted pair products.

Radio Design Labs DS-TPS3A Features:

  • Balanced Microphone XLR Input with Phantom
  • Switch-Selectable Mic Gain on Rear Panel
  • Two Unbalanced -10 dBV Phono Jack Line Inputs
  • MIC Feeds Pair A; L Feeds Pair B; R Feeds Pair C
  • Remote Powering through Twisted Pair Cable
  • Fused Local Power Feeds all Connected Modules
  • Local Power Input on Terminal Block
  • Blue LED Indicates Module is Powered
  • Studio-Quality Precision Active Balanced Circuitry
  • Utilizes All Three Format-A Pairs

Radio Design Labs DS-TPS3A Specifications:

  • Inputs (3): Mic: 1.2 kO Balanced with IEC 24 Vdc Phantom; Line (left andright): 10 kO Unbalanced
  • Input Connection: Mic: XLR; Line: RCA Phono
  • Input Level: Mic: -45 to -65 dBu Balanced; Maximum: -40 dBu (HIGH Gain),-28 dBu (NORM Gain); Line: -10 dBV Unbal.; +10 dBV Max
  • Format-A Signal Pairs Used: A (Mic); B (Unbal Line Left); C (Unbal LineRight)
  • Gain: Mic: 50 dB (NORM) or 63 dB (HIGH), Switch-selectable on rear panel;Line: 12 dB
  • Output: RDL TP Format-A
  • Output Connection: RJ45
  • Frequency Response: Mic: 100 Hz to 30 kHz (+/- 1 dB); integral low-cutfilter -10 dB @ 30 Hz; Line: 20 Hz to 50 kHz (+/- 0.5 dB)
  • THD+N: Mic: < 0.1% (80 Hz to 20 kHz); Line: < 0.05% (20 Hz to 50kHz); <0.005% (1 kHz)
  • Noise below +4 dBu: Mic: < -80 dB (NORM Gain), < -70 dB (HIGH Gain);Line: < -95 dB
  • Crosstalk: Line to Line: < 90 dB (1 kHz); < 75 dB (20 Hz to 20 kHz);Line to Mic (HIGH Gain): < 65 dB (1 kHz), < 60 dB (20 Hz to 20 kHz);Line to Mic (NORM Gain): < 75 dB (1 kHz), < 70 dB (20 Hz to 20 kHz)
  • Headroom above +4 dBu: > 18 dB
  • CMRR: Mic: > 60 dB (HIGH Gain 50 Hz to 150 Hz), > 65 dB (NORM Gain50 Hz to 150 Hz)
  • Indicator: Power In
  • Power Connections (2): Detachable terminal block; RJ45
  • Power Requirement: 24 Vdc @ 65 mA plus connected loads
  • Dimensions: 1.6" (4.06 cm) W; 4.11" (10.45 cm) H; 1.89" (4.8 cm) D
  • Mounting Box Minimum Depth: 2.4"
  • Ambient Operating Environment: 0° C to 55° C
24 VDC 500mA Switching Power SupplyRadio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply

Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...

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