Radio Design Labs D-TPS1A
Active Single Pair Sender with XLR Microphone Input with Phantom Power


Our Price: $159.90
List Price: $213.90
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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.

Radio Design Labs' D-TPS1A modules is a single-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.  The D-TPS1A mounts in RDL's WB-1U wall box, or in a standard U.S. electrical box.  The D-TPS1A features a white front-panel laminate with gray lettering that matches RDL Decora©-style remote controls.

The D-TPS1A module features an XLR microphone input.  The module provides IEC 24 V phantom and accepts input signals from both dynamic and condenser microphones.  The input signal is amplified using a studio-quality microphone preamplifier optimized for normal operating levels.  The rear-panel GAIN 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 one output cable pair selected during installation using a rear-panel switch.

This module drives only one cable pair, therefore it accepts signals and power from other mic-level or line-level Format-A senders.  The D-TPS1A has a second RJ45 jack for these input cables.  Installers simply connect the conductors of two cables in parallel on the EM- model terminal block.  Two other single-pair senders may be chained with the D-TPS1A, or a single two-pair sender may be connected.  If three single-pair senders are connected together, each sender must feed a different pair: A, B or C.  The D-TPS1A must be set to feed pair A if it is connected together with an RDL two-pair sender that feeds stereo audio on pairs B and C.  The power pair and all three audio pairs are fed through both rear-panel RJ45 jacks.

The D-TPS1A may be powered directly from a 24 V DC power supply using the rear-panel detachable terminal block.  Local power connected to the module is also fed to all connected remote modules.  The D-TPS1A 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 D-TPS1A Features:

  • Balanced Microphone XLR Input with Phantom
  • Switch-Selectable Mic Gain on Rear Panel
  • Switch Selects which RJ45 Pair (A, B or C) is Fed
  • Signal and Power Pair Pass-Through on RJ45 Jacks
  • 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
  • Daisy-Chain with Single-Pair or Two-Pair Senders
  • Studio-Quality Precision Active Balanced Circuitry

Radio Design Labs D-TPS1A Specifications:

  • Input: 1.2 kO Balanced with 24 Vdc phantom (IEC 1938: 1996-12)
  • Input Connection: XLR
  • Input Level: -45 to -65 dBu Balanced; Maximum: -40 dBu (HIGH Gain), -28dBu (NORM Gain)
  • Format-A Signal Pair Used: Switch-selectable A, B, or C
  • Gain: 50 dB (NORM) or 63 dB (HIGH), Switch-selectable on rear panel
  • Format-A Input: RJ45
  • Output: RDL TP Format-A
  • Output Connection: RJ45
  • Frequency Response: 100 Hz to 30 kHz (+/- 1 dB); integral low-cut filter-10 dB @ 30 Hz
  • THD+N: < 0.1% (80 Hz to 20 kHz)
  • Noise below +4 dBu: < -80 dB (NORM Gain), < -70 dB (HIGH Gain)
  • Headroom above +4 dBu: > 18 dB
  • CMRR: > 60 dB (HIGH Gain 50 Hz to 150 Hz), > 65 dB (NORM Gain 50 Hzto 150 Hz)
  • Indicator: Power In
  • Power Connections (2): Detachable terminal block; RJ45
  • Power Requirement: 24 Vdc @ 65 mA plus connected loads
  • Dimensions (WxHxD): 1.6" x 4.11" x 1.89" (4.06 x 10.45 x 4.8 cm)
  • Mounting Box Minimum Depth: 2.4"
  • Ambient Operating Environment: 0° C to 50° C
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