Radio Design Labs TX-TPS6A
Passive Single-Pair Sender


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Radio Design Labs' TX-TPS6A is a single-pair audio sending module compatible with RDL Format-A twisted pair products. One low-impedance +4 dBu balanced line-level audio source connects to the module using the detachable terminal block. A studio-quality transformer provides isolation between the audio source and the RJ45 OUTPUT.

The single-pair sender feeds the input signal to the cable pair set on the front-panel switch during installation. This module drives only one cable pair, therefore a LOOP IN RJ45 jack is provided to accept signals and power from other mic-level or line-level Format-A senders. Two other single-pair senders may be chained to the LOOP IN jack, 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 TX-TPS6A 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 TX-TPS6A is a passive module that does not require power to operate. If power is present on a cable connected to the LOOP IN jack, that power is passed through to the modules connected to the OUTPUT jack.

Radio Design Labs TX-TPS6A Features:

  • Single +4 dBu Low-Impedance Balanced Audio Input
  • Input on Detachable Terminal Block
  • Switch Selects which RJ45 Pair (A, B or C) is Fed
  • Signal and Power Pair Pass-Through from LOOP IN Jack
  • Passive Circuitry Does Not Require Power
  • Galvanic Isolation through a Studio-Quality Transformer
  • Daisy-Chain with Single-Pair or Two-Pair Format-A Senders

Radio Design Labs TX-TPS6A Specifications:

  • Input: Low-impedance Balanced
    • Recommended source impedance < 150 Ohm
  • Input Connection: Detachable Terminal Block (Balanced)
  • Input Level: +4 dBu balanced; +22 dBu Max
  • Format-A Signal Pair Used: Switch-selectable A, B, or C
  • Format-A Input: RJ45 LOOP IN
  • Output: RDL TP Format-A
  • Output Connection: RJ45
  • Frequency Response: 20 Hz to 20 kHz (± 0.1 dB)
  • THD+N:
    • < 0.035% (50 Hz to 20 kHz, +4 dBu)
    • < 0.1% (20 Hz to 20 kHz, +4 dBu)
  • Headroom above +4 dBu: > 18 dB
  • CMRR: > 85 dB (50 Hz to 150 Hz)
  • Ambient Operating Environment: 0° C to 50° C
  • Power Requirement: Passive
  • Dimensions:
    • 3.0" (7.6 cm) W
    • 1.6" (4.08 cm) H
    • 2.09" (5.3 cm) D
  • Package Type: Cardboard Box
  • Package Dimensions: 2 x 2 x 4 in.
  • Shipping Weight: 0.695 lbs.
  • WEEE weight: 0.645 lbs.
  • Tariff code: 8517.18.0000
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