RTS MRT327A4F 2 Channel Wired Intercom Modular User Station

ITEM #: TX-MRT327A4F MFG #: TX-MRT327A4F

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TX-MRT327A4F - Overview

The RTS MRT-327 2-Channel User Station is a base station used for RTS TW intercom systems. The station provides flexible routing, microphone input, call signaling, a built in limiter and more. It may be used as a headset or a speaker station with the optional MCS325 modular speaker.

An optional rackmount kit may be purchased for installation into a 19-inch rack. Its dual-action on/off switch allows for momentary and latching push-to-talk functions. The MRT-327 can receive 24kHz inchtalk off inch signals for deactivation of the MRT-327's microphone from a remote location. Additional features include a built-in microphone limiter and optional speaker operation.

  • Features:

    • Can send and receive 20kHz call signals.
    • The MIC on/off switch can be used as a momentary push-to-talk switch or as a latching on/off switch.
    • Receives 24kHz talk-off (mic kill) signals for deactivation of the MRT-327 microphone from a remote location.
    • The microphone pre-amplifier circuit contains a limiter which helps to equalize output for different voice levels.
    • The standard MRT-327 accepts a dynamic-mic headset used in conjunction with an external speaker located on the rear panel. It also has an optional jack for an MCP-90-xx gooseneck panel microphone.
    • The MRT-327 receives operating power from the intercom line. It may be internally modified for local powering from a separate DC power supply or batteries.
     

  • Specifications:

    • General:
    • Input DC Voltage: Mode: 18 to 35 volts DC
    • Local Power: 15 to 35 volts DC (12 to 15 volts DC, reduced performance)
    • DC Current Drawn from TW Line
    • Quiescent: 45mA ±10%
    • Operating, 25U phones: 75mA ±10%
    • Operating, 25U phones + call light: 90mA ±10%
    • Operating, 8U speaker: 240mA ±10%
    • Operating, 8U speaker + call light: 300mA ±10% DC Current Drawn from TW Line
      Microphone Preamplifier:
    • Input Impedance: 470U ±5% (dynamic mic)
    • Source Impedance: 200U, (nom.)
    • Maximum Input Level: 150 millivolts
    • Frequency Response (-54dB input): 100Hz to 8kHz ±3dB
    • Limiter Range: 30dB
    • Carbon Mic Excitation Current: 10mA, (nom.)
      Speaker Amplifier:
    • Maximum Voltage Gain: 30dB
    • Frequency Response: 100Hz to 8kHz ±4dB
    • Output Power: 1.5 watts into 8U (nom.)
    • Speaker DIM (speaker muting during mic activation) adjustable, -4 to -30dB (Factory set to -6dB)
      Headphone Amplifier:
    • Voltage Gain: 34dB
    • Output Voltage: 8 volts peak-to-peak into 25U (nom.)
    • Output power: 1/2 watt peak into 25U
    • Frequency Response: 150Hz to 10kHz ±3dB
    • Headphone Impedance Range: 25 to 600U (600 to 2000U with reduced levels)
    • Sidetone Adjustment Range: -20dB to full on
      Connectors:
    • Dynamic Microphone Headset: XLR type 6 pin female
    • Panel Microphone: 1/4-inch standard phone jack, 3-circuit
    • Line Input: One (1) XLR type 3-pin female and one (1) XLR
      Mechanical:
    • Dimensions: 1.71" (44mm) H x 8.2" (208mm) W x 9.0" (228mm) D
    • Weight: 2.75lb (1.25kg)
    • Construction/Finish: Aluminum case, thermoplastic front panel, light gray finish
     

  • GTIN:

    0800549425476
     

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TX-MRT327A4F - Required Accessories

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