Telex MRT-327 2-Channel User Station (A5F)

BH #TEMRT327A5F • MFR #F.01U.118.525
Telex
Telex MRT-327 2-Channel User Station (A5F)
Key Features
  • For A5F Type Headsets
  • Call Signaling: 20kHz Call Signals
  • Dual-Action Momentary Switch
  • Talk-Off 24kHz Deactivatin Signal
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The Telex 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 "talk off" 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.

Special Order
Expected availability: 2-4 weeks
$536.95
$45/mo. suggested payments.*
with 12 Mos. Promo Financing

Important Notice

  • This item is noncancelable and nonreturnable.
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Telex MRT327 A5F Overview

The Telex 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 "talk off" 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.

Call signaling
Dual-action momentary/latching mic switch
Microphone limiter
Optional microphone speaker & headset configurations
Powering options
Remote deactivation
UPC: 800549425469

Telex MRT327 A5F Specs

GeneralInput DC voltage:
TW 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: 45 mA +/- 10%
Operating, 25 ohm phones: 75mA +/- 10%
Operating, 25 ohm phones + call light: 90mA +/- 10%
Operating, 8 ohm speaker: 240mA +/- 10%
Operating, 8 ohm ohm speaker + call light: 300mA +/- 10%

Operating current is measured with output level at 10dB below clipping. Local power option draws no current from TW line.
Impedance10k ohms minimum (designed for use with 200-ohm "TW" intercom lines)
EnvironmentalTemperature:
Operating: 32° to 140°F (0° to 60°C)
Storage: -40° to 185°F (-40° to 85°C)
Humidity: Operating and storage: 5% to 95%, non-condensing
NoiseCh 1: > - 60dBu
Ch 2: > - 80dBu
Mic Preamp
Input Impedance470 ohms +/- 5% (dynamic mic)
Source Impedance200 ohms, nominal
Maximum Input150 millivots
Frequency Response100Hz to 8kHz +/- 3dB (-54dBu input)
Limiter Threshold Range30dB
GeneralCarbon Mic Excitation Current: 10mA, nominal
Amplifier
Speaker AmplifierMaximum Voltage Gain: 30dB
Frequency Response: 100Hz to 8kHz +/- 4dB
Output Power: 1.5 Watts into 8 ohms nominal
Speaker DIM (speaker muting during mic activation) adjustable, -4 to -30dB (factory set to -6dB)
Headphone AmplifierVoltage Gain: 34dB
Output Voltage: 8 volts peak-to-peak in to 25 ohms nominal
Output power: 1/2 Watt peak into 25 ohms
Frequency Response: 150Hz to 10kHz +/- 3dB
Headphone Impedance Range: 25 to 600 ohms (600 to 2000 ohms with reduced levels)
Sidetone Adjustment Range: -20dB to full on
Additional Specifications
CurrentTransfer Ratio: 3.3mA/volt=3.3 millisiemens
Output: +/- 5mA into 200 ohms = +/- 1 volt peak, nominal
Call Light LevelsSignalling Frequency: 20kHz +/- 100Hz
Flashing Rate: 5Hz +/- 2Hz

Talk-Off
Frequency: 24kHz nominal
ConnectorsDynamic Microphone Headset: XLR type 6-pin female
Panel Microphone: 1/4" standard phone jack, 3-circuit
Line Input: One XLR type 3-pin female and one XLR type 3-pin male, wired in parallel
FinishAluminum case, thermoplastic front panel, light gray finish
Dimensions (HxWxD)1.71 x 8.20 x 9" (44 x 208.3 x 228mm)
Weight2.75lb (1.25kg)
Packaging Info
Package Weight3.7 lb
Box Dimensions (LxWxH)11.3 x 10.3 x 3.6"
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